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| Research Seminars |
Researchers from around the world present their cutting-edge work at the ISB as often as once a week. Members of the ISB community from different disciplines attend these presentations, which makes for some lively discussion. Anyone interested in attending is welcome. If you want to present your paper, please contact the concerned faculty for each area. If you would like to attend the seminars, please fill the registration form at least two days before the scheduled date.
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Speaker |
Topic |
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May 25,
2012
3:00 PM - 4:30 PM (Friday)
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The Effect of WTO on the Extensive and the Intensive Margins of Trade |
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Abstract:
We use 6-digit bilateral trade data to document the effect of WTO/GATT membership on the extensive and intensive product margins of trade.We construct gravity equations for the two product margins where the specifications of these gravity equations are motivated by the Melitz-Chaney model. The empirical results show that standard gravity variables provide good explanatory power for bilateral trade on both margins. Importantly, we show that the impact of the WTO is concentrated almost exclusively on the extensive product margin of trade, i.e. trade in goods that were not previously traded. In our preferred specification, WTO membership increases the extensive margin of exports by 31%. At the same time, WTO membership has a negligible or even a negative impact on the intensive margin (the volume of already-traded goods).
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May 18,
2012
2:00 PM - 3:30 PM (Friday)
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Shivaram Rajgopal
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Goizueta Business School, Emory University
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Earnings Quality: Evidence from the Field |
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Abstract:
We provide new insights into earnings quality from a survey of 169 CFOs of public companies and 12 indepth interviews of Chief Financial Officers (CFOs) and two standard setters. Our key findings are: (i) high quality earnings are sustainable, avoid one-time items, and are backed by actual cash flows; they also reflect consistent reporting choices over time and avoid long term estimates; (ii) CFOs estimate that about 50% of earnings quality is driven by innate factors, about 20% of firms manage earnings to misrepresent economic performance, and for such firms 10% of EPS is typically thus managed; (iii) CFOs believe that earnings management is hard to unravel from the outside but suggest numerous red flags that academics can use to identify managed earnings; and (iv) CFOs disagree with the direction the FASB is headed on a number of issues including the sheer number of rules promulgated, the top-down as opposed to the bottom-up approach to rule making, curtailed reporting discretion, de-emphasis of the matching principle, and the over-emphasis of fair value accounting.
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Full Text
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May 18,
2012
3:30 PM - 5:00 PM (Friday)
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David Musto
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Ronald O. Perelman Professor in Finance
The Wharton School, University of Pennsylvania
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Notes on Bonds: Liquidity at all Costs in the Great Recession |
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Abstract:
We relate market stress to asset pricing by analyzing a large and systematic discrepancy among off-the-run Treasury securities: during the crisis, bonds traded far below otherwise identical notes, over five percent below at the peak, and orders of magnitude below what we find concurrent special repo rates to explain. This low lending revenue from holding the note begs the question why its current holders would not trade it for cheaper yet identical cash flows. To answer this question we look at the relative liquidity of the securities and the cross section of investors. New data on Treasury security trading find the notes more liquid than the bonds, and insurers’ transactions reveal that their note demand grows with their need for liquidity.
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May 4,
2012
3:00 PM - 4:30 PM (Friday)
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Suresh Radhakrishnan
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School of Management, The University of Texas at Dallas
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Management Forecasts around the World |
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Abstract:
We examine firms' practice of providing forecasts using a comprehensive data set containing detailed attributes of management forecasts from 78 countries. We find that the incidence of management forecasts is (a) positively associated with country-level institutional characteristics related to the protection of private business, (b) negatively associated with country-level institutional characteristics related to investor protection, (c) negatively associated with the level of government involvement in the economy, and (d) positively associated with the quality of mandatory reporting. Various properties of management forecasts such as frequency, precision, horizon, attribution, and the type of news in the forecast are also systematically related to these country-level institutional characteristics. In examining whether management forecasts are informative to the stock market, we find that forecasts are informative in nearly all countries. Moreover, institutional characteristics related to protection of private business and investors, and the quality of the mandatory reporting systems appear to enhance the informativeness of management forecasts, and government involvement in the economy is negatively associated with the informativeness.
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April 27,
2012
3:00 PM - 4:30 PM (Friday)
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Pavan Mamidi
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Harvard Law School
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Signaling and Screening for Recruitment among the Maoists in India |
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Abstract:
Recruitment into underground criminal and terrorist organizations is rendered
difficult by the absence of formal institutions to protect agreements of
non‐defection by entrants. Threats of violence, and punishments by informal
norms are also difficult when defectors can vanish into anonymity in a large population. Ex-ante means of Spencian costly signaling allows prospective entrants to build trust to enter rebel organizations like the Maoists in India. Based on field interviews in forests and tribal villages in south India, it is
discovered that costly to mimic signals play an important role in the recruitment
of Maoists. It is also discovered that “bridge‐burning”, i.e., behavior that reduces
alternative options of livelihood, and behavior that increases asset specificity of candidates, increases trustworthiness of prospective entrants.
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Full Text
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April 13,
2012
12:30 PM - 2:30 PM (Friday)
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Shailendra Jain
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University of Washington
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Implicit Theories and Brand Extensions: Different Strokes for Different Folks |
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Abstract:
A robust finding in brand extension literature is that perceptions of high similarity or fit with the extension result in favorable extension evaluations. In this research, we examine two different types of fit – based on a category prototype or a category exemplar, and suggest that consumers’ implicit theories regarding the changeability or fixedness of human traits will impact the evaluations of extensions that vary on prototype or exemplar fit. In the first two studies, we find that while entity theorists evaluate extensions with high prototypical fit higher, incremental theorists assess extensions with high exemplar fit more favorably (study 1), regardless of whether consumers organize brand and product information around a brand category or a product category (study 2). In study 3, we further show that a failed extension with high prototypical fit is evaluated lower by entity theorists, while incremental theorists’ evaluations remain unaffected. We conclude with a discussion on future research and managerial implications of our findings.
Copy of the paper is attached:
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April 6,
2012
3:00 PM - 4:30 PM (Friday)
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Krishnamurthy Subramanian
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Assistant Professor
Indian School of Business
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A Theory of Firm Boundaries in the New Economy |
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Abstract:
This paper develops a theory of firm boundaries in knowledge-intensive firms as distinct from those in physical-asset-intensive firms. Since knowledge assets are non-rival in nature, owners cannot withdraw access to the asset ex-post once they have provided it ex-ante. Therefore, unlike physical-asset-intensive firms, where only the owner can hold up the user, the user of a knowledge asset can hold up the owner as well. We model these distinctions by endogenously specifying the joint profit and outside options and show that the incentive effects of ownership and, thereby, optimal ownership of knowledge assets differs substantially from those of physical assets
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April 4,
2012
11:00 AM - 12:30 PM (Wednesday)
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Ravi Sarathy
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Northwestern University
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Government Industrial Policies and their Impact on Global Strategy: The Solar Energy Industry |
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Abstract:
Government industrial policies are a controversial topic among economists, with their economic adherents as well as their skeptics. (Krugman 1986) Industrial policies, focused on specific industries, are not new, with Airbus, formed in the mid-seventies as a joint effort between the Governments of France, Germany, the UK and Spain, being one prominent example. Fifty years later, Airbus has become an equal member of a duopoly in the commercial jet aircraft industry, (though it is an open question whether Airbus has achieved economic returns on shareholder equity). (Esty and Kane 2004) Another example is Taiwan’s fostering of its semiconductor industry (Shih and Wang 2009). Taiwan has similarly benefited from its Government policies, to develop a globally dominant semiconductor industry. As Pierce et. al. (2009: 532) suggest, because strategy theory has developed in environments with more liberal markets and capable governments, “corporate strategy theorizing has placed less emphasis on the importance of governments”.
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March 30,
2012
3:00 PM - 4:30 PM (Friday)
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NK Chidambaran
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Assistant Professor of Finance
Fordham School of Business
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International Stock Comovement: Levels and Trends |
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Abstract:
We examine world stock market comovement using data from 23 developed and 10 emerging market countries. We use a generalized factor model framework that allows for country, regional, and world factors. We show that the commonly used World Fama French (W-FF) factor model with world value-weighted portfolios as a proxy for global factors, is biased in calculating comovement. We develop an alternate approach, the Weighted-Generalized Canonical Correlation (W-GCC) method, to determine the factor model and classify the factors into world factors and regional/country-specific factors. Simulation studies show that our methodology is able to accurately identify the world and country-specific factors and is robust to varying market capitalizations, varying regions, and when the world factor is weak in some countries. Unlike the W-FF model, the W-GCC does not exhibit biases with respect to small and large stock portfolios, large capitalization countries, or over represented world regions. We test for changes in comovement over a 30-year period from 1981 to 2010 -- a period that has witnessed major changes in international trade institutions, capital market regulations, and the advent of the Internet era -- allowing for a structural change driven by world events. We find that stock price comovements is stable through the mid 1990s and then starts increasing from the mid 1990s through 2010. The bias in the W-FF model is however less important in recent times as world comovement has soared to over 70%. Finally, we separately examine the comovement of the Chinese A and Chinese B stock markets as they have different investor bases. The Chinese B stock market shows a dramatic increase in comovement over the time period but not the Chinese A stock market, suggesting that comovement is more likely driven by investment cash flows.
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March 23,
2012
3:00 PM - 4:30 PM (Friday)
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Suraj Prasad
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Lecturer
University of New South Wales
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Promotions, Multiskilling and Incentives for Skills |
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Abstract:
We study a worker's incentive to acquire costly skills when skills cannot be verified by a third party and thus cannot be contracted on. A firm's promise to reward the worker for skills is split into two parts: a promise to promote the worker for skills (promotion promise) and a promise to pay higher wages for a promotion (wage promise). Promoting a worker based on general skills, conveys information to a less informed labor market, bidding up wages. So the general skill helps the firm keep its wage promise. Promoting a worker based on firm specific skills, increases output without increasing wages offered by a labor market. So the firm specific skill helps the firm keep its promotion promise. To keep both promises, workers are promoted only when they acquire both types of skills, which in turn leads to multiskilling. Because promotions selectively reveal information about the general skill to the labor market, firms also earn a return on general training. This helps explain why many companies pay for training to develop general skills that workers need in higher level jobs.
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March 20,
2012
5:00 PM - 6:30 PM (Tuesday)
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Sandeep Juneja
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School of Technology and Computer Science, Tata Institute of Fundamental Research, Mumbai
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The Concert/Cafeteria Queueing Game: To Wait or to be Late |
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Abstract:
We consider the non-cooperative choice of arrival times by individual users, or customers, to a service system that opens at a given time, and where users queue up and are served in order of arrival. Each user wishes to obtain service as early as possible, while minimizing the expected wait in the queue. We first analyze this problem within a simplified fluid model where we identify the unique Nash equilibrium arrival profile and show that the price of anarchy of the system equals 2, under the assumption of linear waiting and time to service costs. We then address the non-asymptotic stochastic system, assuming a finite number of homogeneous users and exponential service times. In this setting as well we show that there exists a unique Nash equilibrium, which is symmetric across users, and characterize the equilibrium arrival-time distribution of each user in terms of a corresponding set of differential equations. We further establish convergence of the Nash equilibrium solution to that of the associated fluid model as the number of users increases to infinity. We also show that the price of anarchy in our system exceeds 2, but approaches this value for a large population size.
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March 16,
2012
11:00 AM - 12:30 PM (Friday)
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Jyoti Bachani
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Saint Mary’s College of California
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Jugaad: A way to innovate, or not |
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Abstract:
Jugaad has been looked upon as a uniquely Indian management practice that is translated as ‘fast and frugal innovation’, or ‘creative problem solving’. Will this be India’s contribution to new management ideas, akin to the Japanese practices of kaizen or Kanban? In India, Jugaad can have a negative connotation. There is a call for India to move away from jugaad towards systemic innovation, to be able to realize it’s true potential. There are no empirical studies of jugaad, and the fieldwork is addressing this research challenge.
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March 12,
2012
3:00 PM - 4:30 PM (Monday)
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Ram Rao
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Founders Professor and Professor of Marketing
, School of Management ,The University of Texas
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Rationed Promotions, Revenue Management and Competition |
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Abstract:
A rationed promotion occurs when a firm offers a limited quantity of product at a below market clearing price. Examples include airline supersaver fares and Black Friday discounts on consumer durables. We characterize the optimal pricing strategy for a monopoly firm with limited capacity facing generalized linear demand. Under a binding capacity constraint and a suitable convex demand function we show that it is optimal to offer a limited quantity at a price below the market clearing price, then sell the balance of inventory at a high reserve price. We consider duopoly competition in a similar environment and show that there is a unique dominant strategy Nash equilibrium in which discount prices are higher than optimal resulting in a loss of efficiency in market segmentation and corresponding decrease in total revenues. Nonetheless, by clearing excess inventory, promoting firms avoid direct competition for their most profitable customers and retain most of the revenues available to the monopolist. We extend these results to situations of asymmetric competition and horizontally differentiated products and find that in this context competition can lead to either higher or lower prices depending on the degree and nature of preference heterogeneity. Finally we relate rationed promotion to the second and third degree price discrimination strategies commonly used in yield management. For a monopolist seller we show that rationed promotions complement third degree price discrimination under appropriate conditions, but substitute for 2nd degree price discrimination when willingness to pay is only weakly correlated with preference for non-price attributes and demand exhibits the required convexity in price.
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March 9,
2012
3:00 PM - 4:30 PM (Friday)
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Leora Friedberg
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Associate Professor
University of Virginia
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Pensions and Public School Teacher Retirement: An Analysis Using National Teacher Data |
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Abstract:
The retirement security landscape has changed drastically for most workers over the last thirty years – except for public school teachers and other state and local government employees. Many private-sector employers have stopped offering traditional retirement plans, while most state and local employees remain covered by defined benefit (DB) pension plans. Research shows that DB plans have had strong effects on worker retention in the private sector, as workers delayed retirement until they cash in on large pension wealth accruals late in their careers and then retire abruptly. We explore these effects for teachers, using data that includes measures of teacher qualifications and job satisfaction. We find that dissatisfied teachers respond much more to pension incentives than satisfied teachers do, first delaying retirement while pension wealth is still accumulating and then retiring abruptly
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March 8,
2012
11:00 AM - 12:30 PM (Thursday)
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Uday Karmarkar
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UCLA Anderson School of Management
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The Global Service and Information Economy: Current Research Projects |
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Abstract:
All the major economies in the world are now dominated by services. Developed economies have also become true “information economies”. Some of these changes can be justifiably described as “service industrialization” and they are visible from the sector and firm level down to processes and tasks. There are very significant opportunities for research at all levels. I will present an overview of our current research in areas including economic evolution, technology and competition, collaborative services, service experience and process design.
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March 3,
2012
6:00 PM - 7:30 PM (Saturday)
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Alex Eapen
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The University of Sydney Business School
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Transferring tacit know-how through licensing or joint venture: Is opportunism really redundant? |
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Abstract:
Transaction cost theory (TCE) scholars argue that MNEs exist due to failure of markets, a main stimulus of which is opportunism. On the contrary, proponents of the knowledge based view (KBV) claim that the opportunism assumption is redundant; the existence of the MNE can be explained without recourse to opportunism. This debate still persists (e.g., Fransson, Hakanson, &Liesch, 2011), but a key feature is that despite competing causal mechanisms, predictions of TCE and KBV are identical. We see this lack of predictive uniqueness as the prime bottleneck in resolving the question of whether opportunism matters, and contribute to the debate in two ways:(1) conceptually, we exploit the contingency logics inherent in KBV and TCE to build distinctive predictions from both theories and (2) empirically, we test the competing logics of both theories, bringing empirical evidence to the debate which has this far been largely on conceptual turf alone.Our results suggest that, subject to certain caveats, opportunism matters
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Full Text
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March 3,
2012
7:45 PM - 9:15 PM (Saturday)
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Anirvan Pant
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Indian Institute of Management - Bangalore
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Legitimacy Beyond Borders: Indian Software Services Firms In The United States 1984-2004 |
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Abstract:
Legitimacy Beyond Borders: Indian Software Services Firms in The United States 1984-2004 The organizational legitimacy of the multinational corporation (MNC) in host country institutional environments has been an ongoing concern for scholars in international management research. Notwithstanding a substantial literature on legitimacy as an outcome, our knowledge of legitimacy as a process, or legitimation, in the MNC context remains sketchy. We argue that the contemporary emergence of developing country MNCs (DMNCs) provides researchers a valuable opportunity to acquire a deeper understanding of the dynamics and mechanisms of the legitimation of MNCs. By means of a qualitative inquiry into the cultural-cognitive legitimation of Indian software services firms in the United States over the course of two decades from 1984 to 2004, we identify five core legitimation dynamics that explain how DMNCs acquire legitimacy in developed country markets. We also propose institutional bricolage as an alternative legitimating mechanism
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Full Text
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March 2,
2012
6:00 PM - 7:30 PM (Friday)
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Bryan Hong
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University of California-Berkeley
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The Cost of a New Boss: Supervisor changes, hierarchy, and firm performance |
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Abstract:
This paper examines the performance impact of supervisor changes for workers within firms, and considers whether the magnitude of this effect depends upon a manager’s level within an organizational hierarchy. At lower levels in a hierarchy, codified rules dictating worker activities are typically implemented to a greater extent relative to higher levels, while managers at higher levels are given greater discretion to execute their role. As a consequence, the cumulative experience of managers and their subordinates working together may be more important in determining performance at higher levels. Using a proprietary dataset from a quick-service restaurant firm, I test for differences in the importance of this experience by estimating the short-term performance cost of supervisor changes at both upper and lower levels in the hierarchy. I find that supervisor changes at upper levels results in greater performance losses relative to lower levels, even after accounting for differences in assigned responsibility
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Full Text
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March 2,
2012
11:30 AM - 1:00 PM (Friday)
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Professor Lorna Doucet
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China Europe International Business School
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Are Happy Teams Really More Effective? Positive State Affective Diversity and Team Effectiveness |
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Abstract:
In this study, we examined the relationship between diversity in positive state affect and the effectiveness of two-person flight crews. Using data collected from 93 flight simulations in two aviation courses, we found that diversity in positive state affect was positively related to crew effectiveness. Furthermore, we found that the agreeableness of crew members corresponded with susceptibility to emotional contagion, and therefore decreased the likelihood of them assuming diverse affective states during flight.
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March 2,
2012
3:00 PM - 4:30 PM (Friday)
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Nandini Gupta
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Associate Professor of Finance and Koenig Faculty Fellow
Indiana University
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The value of (corrupt) lobbying |
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Abstract:
Does corporate lobbying simply add value by allowing firms to communicate expert information to policy makers, or does it also add value by facilitating potentially illegal quid pro quo arrangements, where lawmakers receive private benefits in exchange for favorable policy decisions? Using the corruption scandal involving the top Washington D.C. lobbyist Jack Abramoff as an exogenous negative shock to the ability of firms to lobby, we examine whether lobbying and illegal lobbying practices in particular, affect the market value of firms. The results suggest that firms that lobby more experience a significant decrease in market value following the guilty plea by Mr. Abramoff to bribery and corruption. A firm that spent $100,000 more on lobbying prior to the event year experiences an average decrease of $1.4 million in value in a 3-day event window around the guilty plea. To examine whether corrupt lobbying adds value, we use corporate social responsibility rankings to capture a firm’s propensity to engage in corrupt practices, and find that lobbying firms with a bad reputation experience a greater decrease in value following the scandal. We also find that legislation aimed at curbing corrupt lobbying practices significantly reduces firm value. A firm that spent $100,000 more on lobbying prior to the event year, experiences an average decrease of $0.84 million in value in a 3-day event window around the passage of the anti-corruption law. Our results indicate that lobbying creates shareholder value, and that part of this value can be attributed to corrupt lobbying practices.
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February 24,
2012
12:30 PM - 2:00 PM (Friday)
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Vishal Narayan
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Assistant Professor of Marketing
Cornell University
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Should Modern Retail Love the Rich or the Poor? A Customer Selection Dilemma in Emerging Markets |
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Abstract:
As “modern” retail expands into emerging markets with promises of better quality, variety and lower prices, they face competition from millions of “traditional” mom-and-pop stores. This paper addresses a basic customer selection question facing a modern retailer entering an emerging market: Should the retailer begin by targeting higher socio economic classes or value conscious lower socio economic classes? The conventional wisdom is that lower socio-economic classes are likely to resist new shopping practices; hence modern retail should target the rich initially. Economic value-based arguments suggest that while modern retail’s better quality and variety may attract higher socioeconomic classes, lower prices will be attractive to lower socioeconomic classes; hence modern retail should also target the lower socioeconomic classes. Further, given the lower density of modern retail, would it be patronized by the rich with better transportation or the poor with lower opportunity costs of time? We address these questions using survey and household panel data on FMCG purchases from India. Household level models of store format and expenditure share choice show a nonlinear relationship between modern store patronage and socio economic status. Both high and low socioeconomic households adopt more often and spend more on modern retail relative to medium socioeconomic households. The results based on observational panel data are corroborated with self-reported reasons: high socio-economic households buy from modern retail for higher quality and variety, low socioeconomic households buy due to low prices and lower opportunity cost of time. We conclude that given the substantially larger size of lower socio-economic households in emerging markets, it is critical for modern retailers to appeal to lower middle class customers even in the early stages of entry.
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February 24,
2012
3:00 PM - 4:30 PM (Friday)
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Rick Harbaugh
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Associate Professor of Business Economics and Weimer Faculty Fellow
Kelley School of Business, Indiana University
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Abstract:
Consumers, investors and other decision makers often rely on an expert to help choose among different actions that may also benefit the expert. To gain insight into such situations, we develop and test a model of an expert who recommends one of two actions to a decision maker who has the option to take neither action. For instance, a salesperson recommends one of two products to a customer who may purchase neither, or a consultant recommends one of two projects to a client who may pursue neither. Several phenomena previously identified in the theoretical literature on recommendations through costless, unverifiable "cheap talk" are captured together in this simple model. First, recommendations are "persuasive" in that recommending either action benefits the expert by reducing the probability that the decision maker takes neither action. Second, if the expert's incentives are biased toward one action then a recommendation for the more incentivized action is "discounted" and is less persuasive. Third, such discounting implies that if the expert's incentives are not transparent then an unbiased expert has a "political correctness" incentive to recommend the opposite action as a biased expert, so lack of transparency undermines the credibility of both biased and unbiased experts. Finally, if the decision maker is more easily pushed toward one action due to prior beliefs then the expert "panders" to the decision maker by sometimes recommending that action even when it is the worse action. These comparative static results are robust to the expert having a preference against lying. Experimental tests conducted with business students find that subject behavior is consistent with the comparative static predictions of the model, except that decision makers do not always anticipate that lack of transparency gives even unbiased experts an incentive to lie. The results suggest that full disclosure of expert incentives is even more important to successful communication than theory implies.
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February 17,
2012
3:00 PM - 4:30 PM (Friday)
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Catherine Tucker
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Associate Professor of Marketing
Douglas Drane Career Development Professor in IT and Management , MIT Sloan School of
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Abstract:
In social advertising, ads are targeted based on underlying social networks and their content is tailored with information that pertains to the social relationship. This paper explores the effectiveness of social advertising using data from field tests of different ads on Facebook. We find evidence that social advertising is effective, and that this efficacy seems to stem mainly from the ability of targeting based on social networks to uncover similarly responsive consumers. However, social advertising is \emph{less} effective if the advertiser explicitly states they are trying to promote social influence in the text of their ad. This suggests that advertisers must avoid being overt in their attempts to exploit social networks in their advertising.
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Full Text
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February 17,
2012
3:00 PM - 4:30 PM (Friday)
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Jacob Oded
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Lecturer in Finance
Tel Aviv University
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Do Firms Buy Their Stock at Bargain Prices? Evidence from Actual Stock Repurchase Disclosures |
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Abstract:
Using new data we investigate open-market repurchase execution of S&P 500 firms. We find that smaller firms repurchase less frequently than larger firms, and at prices which are significantly lower than average market prices. Their repurchase activity is followed by a positive and significant abnormal return which lasts up to three months after the repurchase. These findings do not hold for large S&P 500 firms. Consistent with these findings, we show that the market response to the disclosure of actual
repurchase data is positive and significant only for small firms, and that insider trading is positively related to actual repurchases
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Full Text
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February 14,
2012
11:30 AM - 1:00 PM (Tuesday)
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Professor Michael G. Pratt
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Boston College
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Sparks, Workers and Slugs: On the Relationship between Work Orientation and Trust among Firefighters |
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Abstract:
Building on over a decade of research on firefighters, I report findings from three studies (two qualitative, one quantitative) that illustrate: (a) the fundamental nature of assessing others’ “work orientations” (e.g., do you have a calling or are you here for the paycheck?); (b) how perceived work orientations are used for determining trust and predicting performance; and (c) how disparate cues are used in building an understanding of others’ work orientations. Firefighters provide an interesting case study for this research as the need for trust at a fire scene is very high; however, the number of fires that firefighters actually fight has gone down dramatically in recent years. Consequently, issues of trust often have to be made based on “small cues” that may have very little direct relevance to fighting fires. I draw upon multiple literatures, including meaning of work and trust, and provide implications for both theory and practice.
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February 10,
2012
3:00 PM - 4:30 PM (Friday)
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Jayant R. Kale
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Jr. Chair of Finance
Georgia State University
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Monkeys Reject Unequal Pay, Do Corporate Managers? |
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Abstract:
To our knowledge, ours is the first study to offer non-experimental evidence on the effects of pay inequality on agent actions. We study how pay inequalities affect (i) the likelihood that an individual non-CEO manager (VP) will voluntarily resign, and (ii) a firm’s rate of VP turnover. We consider pay inequalities that a VP faces relative to (i) the CEO in her own firm, (ii) other VPs in the firm, and (iii) VPs in benchmark firms. We use a unique hand-collected dataset of over 1,000 voluntary managerial resignations and find that pay inequality is an important determinant of managerial turnover. We find that managers are more likely to resign when their pay relative to their peers in the firm and outside the firm is lower; and firms with greater levels of internal pay inequality and greater pay inequality relative to benchmark firms experience higher VP turnover.
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Full Text
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February 9,
2012
11:30 AM - 12:30 PM (Thursday)
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Ahmet Kuyumcu
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Prorize LLC
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Scientific Pricing and its Application for High-Tech Products |
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Abstract:
Scientific pricing incorporates process and data-driven intelligence into a company’s selling process. It fundamentally uses the law of supply and demand; however, its applications vary considerably based on many factors, including product characteristics, data availability, business requirements, managerial objectives, and competitive environments. High-tech products are characterized by rapid price erosions, super high price sensitivity, short and unpredictable lifecycles, strong tendency of cannibalization and extreme competition. This presentation provides a brief overview of scientific pricing and discusses key challenges in its application for the high-tech products.
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February 7,
2012
3:00 AM - 4:30 AM (Tuesday)
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Tarun Chordia
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Department of Finance, Goizueta Business School
Emory University
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Anomalies and Financial Distress |
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Abstract:
This paper explores commonalities across asset-pricing anomalies. In particular, we assess implications of financial distress for the profitability of anomaly-based trading strategies. Strategies based on price momentum, earnings momentum, credit risk, dispersion, idiosyncratic volatility, and capital investments derive their profitability from taking short positions in high credit risk firms that experience deteriorating credit conditions. Such distressed firms are highly illiquid and hard to short sell, which could establish nontrivial hurdles for exploiting anomalies in real time. The value effect emerges from taking long positions in high credit risk firms that survive financial distress and subsequently realize high returns. The accruals anomaly is an exception - it is robust amongst high and low credit risk firms as well as during periods of deteriorating, stable, and improving credit conditions
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Full Text
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February 5,
2012
9:00 AM - 10:30 AM (Sunday)
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Sharon M. Barnhardt
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Institute for Financial Management and Research, Chennai
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Geographic Isolation, Network Formation and Cooperation: Evidence from a Public Housing Experiment in India |
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Abstract:
Cities are often modeled as thick and fluid environments in which individuals have better access to markets, public goods and services, and more diverse social networks. However, rapid urbanization in developing countries has created “mega cities” that cover large geographic areas and often have poor public transportation, segregated housing, and uneven provision of public goods. Does spatial and social distance within such cities affect the economic mobility and well-being of the urban poor? In this paper, we exploit a relocation program in a large Indian city, which used a lottery to select which households would be offered the opportunity to purchase a subsidized home in a relatively distant, residential complex, to examine how spatial and social distance shape networks and household ability to use networks for risk-sharing and collective action. We find that winners of the housing lottery are more spatially isolated from centers of economic activity and public services approximately 14 years after the relocation. Winners have more occupational ties but fewer caste/religious ties within neighborhoods compared to non-winners, and winners report greater collective action but less social insurance. We interpret this pattern as a change in the shape of networks, reducing costs for local cooperation, but increasing the correlation of risk within networks
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Full Text
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February 4,
2012
9:00 AM - 10:30 AM (Saturday)
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Manasa Patnam
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University Of Cambridge
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Corporate Networks And Peer Effects In Firm Policies |
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Abstract:
This paper identifies the effect of corporate networks on firms’ financial investment and executive pay decisions. Corporate networks arise through board interlocks, which provide a frequent and important channel for non-market interactions amongst firms. Using panel data for all publicly traded companies in India I estimate peer effects in firm policies, defining each firm’s reference group as the set of all other firms with whom it shares one or more directors. Identification of dynamic network peer effects, which derive from endogenous associations, is achieved by exploiting natural breaks in network evolution that exogenously change the composition of peers. These breaks occur as a result of local network shocks – death or retirement of shared directors – that are stochastic and external to the network formation process. I find significant network peer effects that are positively associated with firms’ investment strategy and executive compensation.I also explore heterogeneity in peer effects by distinguishing between network peers who belong to the same industry from those that do not, and find a greater effect of across-industry network peers.
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Full Text
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February 3,
2012
9:00 AM - 10:30 AM (Friday)
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Neel Rao
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Harvard University
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Social Learning in the Labor Market: An Analysis of Siblings |
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Abstract:
This paper examines whether a worker's wage is based in part on information about the performance of her personal contacts. Embedding a sibling model into an employer learning framework, I develop a theory of labor markets with symmetric but imperfect information among employers in which workers are organized into disjoint social groups and workers in the same reference group have correlated abilities. I study wage determination under two alternative belief formation processes: individual learning, under which employers observe only a worker's own schooling and performance, and social learning, under which employers also observe those of her personal contacts.
Using data on the AFQT scores of siblings in the NLSY79, I test for a form of statistical nepotism in which a sibling's performance is priced into a worker's wage. If learning is social, then an older sibling's test score should typically have a larger adjusted impact on a younger sibling's log wage than vice versa. By contrast, if learning is individual, then no such asymmetry should be present. The empirical findings provide strong support for the central prediction of the social learning model. Furthermore, I perform several exercises to identify social learning as the leading explanation for the main results, largely ruling out other potential factors, such as asymmetric skill formation, human capital transfers, and role model effects.
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Full Text
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January 30,
2012
11:00 AM - 12:30 PM (Monday)
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Harry Groenevelt
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Simon School of Business, University of Rochester
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The (Q,R,S) Inventory Model and some Applications |
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Abstract:
We consider a flexible policy for a single location, single item inventory under rather general assumptions. Under the (Q,R,S) policy, orders are placed in multiples of Q units, at review epochs that are spaced R time units apart, and such that after ordering the inventory position is as close to but no larger than S units of product. By choosing Q = 0 (or 1 for discrete demand), the policy reduces to a base stock policy, and by choosing R = 0, continuous review results. Hence the general (Q,R,S) policy includes periodic review base stock and (r,nQ) policies and continuous review one-for-one and order point order quantity policies as special cases. The model therefore allows fair comparisons of costs between all these policies.
We provide a unified derivation of the inventory related costs for the (Q,R,S) policy and completely characterize its (joint) convexity properties. We also study review and ordering costs incurred under the (Q,R,S) policy, and compare optimality conditions and costs for the periodic review base stock policy and continuous review order point-order quantity policies.
Finally, we provide some real life examples where it is natural to use (Q,R,S) policies.
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January 30,
2012
12:30 PM - 2:00 PM (Monday)
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Anthony J. Dukes
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University of Southern California
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The Informational Role of Product Trade-Ins for Pricing Durable Goods |
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Abstract:
We develop a theoretical model of the pricing of a new durable good to determine the conditions under which the seller can utilize inferences about the buyer’s willingness to pay based not only on her decision to trade in the old good but also on its characteristics. We test the predictions of our theory using transaction data for new car purchases that includes information on the vehicles that new car buyers traded in. The results show that dealers infer a higher willingness to pay and
charge higher prices to consumers who traded in a used vehicle than to those who did not. We also find that dealers charge even higher prices to those consumers who trade in used cars that
were of the same make and model as the new one. We show that ignoring the information available in the type of trade-in can inflate the estimated value of the trade-in effect
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January 29,
2012
9:00 AM - 10:30 AM (Sunday)
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Saurabh Ahluwalia
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University of California at Los Angeles
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Information Aggregation and Asset Prices |
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Abstract:
Various theoretical models assume that information seeking behavior of investors has an impact on prices. However, it is very difficult to empirically test this, since the actual information acquisition process of the investors is unobservable. Using a unique data set from Google Trends, I construct a search index and use it to proxy for the information seeking behavior of retail investors. I find that abnormal search index predicts future buying pressure on the stock of a company. The portfolio with the highest increase in the search index has positive and significant alphas. The search index also predicts earnings surprises and is associated with the pre-earnings announcement drift. My results are robust to alternative specifications of CAR windows, past returns, news coverage, information available to investors prior to the release of earnings numbers, and the information environment surrounding the earnings announcements. Overall, my results are in line with the hypothesis that retail investors’ trades have information content relevant to stock prices.
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Full Text
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January 28,
2012
9:00 AM - 10:30 AM (Saturday)
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Vikas Raman
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Price College of Business, University of Oklahoma
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The Who, Why, and How Well of Order Revisions: An Analysis of Limit Order Trading |
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Abstract:
Limit order revisions, which involve decisions about when and how to modify or cancel prevailing limit orders, account for a significant proportion of limit order activity in exchanges around the world. This paper examines the determinants of traders' decisions to revise orders, and the profitability of traders' order revision strategies using a unique dataset which provides complete information on trades, orders, trader identification codes, and trader categories. The analysis provides three important results. One, informed traders and traders who function as voluntary market makers revise orders most intensely. Two, along with changes in market prices and other market conditions, changes in traders' inventories, including inventories of correlated stocks, influence order revision strategies. Three, informed traders reduce the execution costs of their order portfolios through active order revisions; the benefit is especially pronounced on earnings announcement days, when the value of private information is high. That traders employ revisions to mitigate their order submission, inventory, and adverse selection risks indicates that order revisions are a valuable feature of the rapidly proliferating electronic limit order markets.
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Full Text
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January 27,
2012
9:00 AM - 10:30 AM (Friday)
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Saumya Prabhat
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Simon School of Business, University of Rochester
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Do Political Contributions Enhance Shareholder Value? |
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Abstract:
This paper investigates whether managers’ discretionary spending for political purposes enhances shareholder value. I exploit exogenous shocks to campaign finance regimes, in particular the McConnell v. FEC Supreme Court decision of 2003, to show that on average, restrictions on firms’ abilities to contribute to national political parties reduce shareholder value by $10.28 million to $87.67 million. Overall, the results suggest that political contributions are value-enhancing investment projects, and restrictions on managers’ discretionary spending for political purposes are detrimental to shareholder value.
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January 24,
2012
12:30 PM - 2:00 PM (Tuesday)
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Tanuka Ghoshal
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Assistant Professor of Marketing
Indian School of Business
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It’s Not Always Either/Or: The Simultaneous Effects of Assimilation and Contrast |
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Abstract:
Many judgments consumers make occur within a sequence of evaluations and therefore are likely to be influenced by context effects. Assimilation (contrast) refers to a positive (negative) relationship between the value people place on a target and the value they place on the context. Past work on assimilation and contrast in sequential evaluation presupposes only one or the other occurs. We propose that stimuli experienced within a sequence may be influenced simultaneously by assimilation and contrast to stimuli experienced earlier in the sequence, and we estimate a hierarchical Bayesian model that confirms these simultaneous effects within a unique, real-world dataset. We find individual evaluations (scores) are influenced by contrast effects to the scores of their immediate predecessors and to extreme scores within the sequence, while simultaneously influenced by assimilation to the first score. This work is the first to document that multiple assimilation and contrast effects simultaneously influence sequential hedonic evaluations.
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Full Text
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January 23,
2012
10:30 AM - 12:00 PM (Monday)
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Professor David Hardoon
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SAS Singapore
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Operational Analytics; Going Beyond Theory |
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Abstract:
Over the recent two decades substantial effort has been placed in expands our theoretical understanding of Analytics (machine learning, data mining, etc.). However, the necessity of a sound theoretical understanding of any analytical methodology is only a part of the overall vision. In thistalk we focus on the operationalisation of Analytics, that is how do we take these approaches and marry them into business requirements. What are the key ingredients to operationalise analytical methodologies? And why would one want to operationalise Analytics in the first place?
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January 23,
2012
12:30 PM - 2:00 PM (Monday)
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Sunil Chopra
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Kellogg School of Management, Northwestern University
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Impact of disruption risk on supply chain design |
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Abstract:
We study how the risk of disruption impacts the performance of a supply chain with a goal of identifying policy recommendations for designers. A classic example is that of a fire in a supplier plant shutting down production at Ericsson for 30 days and resulting in $400 million of lost revenue. There are two questions we focus on in a context like this. The first relates to the fact that the risk of disruption is very hard estimate. There is now way that Ericsson could have estimated the probability of this fire. How should it account for estimation error when designing its supply network? The second question relates to the idea of “integrating” supply chains using policies such as common parts, single suppliers, centralized inventories. In each case, the supply chain action improves performance when faced with recurrent risk (for example demand fluctuations) but makes the supply chain more fragile when faced with disruptive risk. We identify factors that influence the fragility of a supply chain.
Sunil Chopra (joint with Achal Bassamboo, Mark Daskin, Michael Lim)
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January 23,
2012
12:30 PM - 2:00 PM (Monday)
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Sudhir Voleti
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Assistant Professor
Indian School of Business
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A Robust Model to Measure Equity in Hierarchical Branding Structures |
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Abstract:
The literature suggests that brand equity can be split into two parts - an attribute-based equity and a non-attribute based one that captures consumer preferences beyond the utility offered by individual attributes. In addition to measuring attribute-based equity, firms deploying portfolios of products within complex branding structures often seek to measure the presence, distribution and evolution of these potentially heterogeneous non-attribute based unique branding associations - labelled 'residual equity' – at each distinct layer of a product’s brand hierarchy. The authors develop and operationalize a robust and flexible Bayesian semiparametric model to first separate the attribute-based equity from latent residual equity, to jointly estimate this multi-level residual equity and to allow residual equity to exhibit statedependence using a random-walk prior. The model is empirically illustrated on syndicated US national beer sales data. The authors find significant, heterogeneous and temporally stable residual equity presence across the brand hierarchy and highlight some substantive implications arising therein.
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Full Text
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January 20,
2012
3:00 PM - 4:30 PM (Friday)
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Professor Kalus Abbink
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Department of Economics
Monash University
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Abstract:
The defining figure of neoclassical economic theory, the homo oeconomicus, has long been challenged by both experimental economics and social psychology. People are, as we now know from many experimental studies on dictator games, ultimatum games or public good games, not own-payoff maximising egoists, but compassionate social beings who care about fairness and the well-being of others. However, the focus on kind behaviour in the literature may be inappropriately one-sided. In a series of experiments presented here we ask whether there is also adark side of human behaviour. We show that nastiness, which we define as a genuine pleasure derived from lowering the well-being of others, is a common trait in humans. We explore strategic situations in which spite and nastiness can result in disastrous outcomes, and which institutional arrangements exacerbate or harness the effects of nastiness.
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January 20,
2012
11:00 AM - 12:30 PM (Friday)
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Garrett van Ryzin
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Columbia University, New York
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Estimating primary demand for substitutable products from sales transaction data |
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Abstract:
We consider an approach for estimating substitute and lost retail demand when only sales transaction data are available and not all products are available in all periods (e.g., due to stock-outs or availability controls imposed by the seller). Our method combines a multinomial logit (MNL) demand model with a Poisson model of arrivals over multiple periods. The problem we consider is how to jointly estimate the parameters of this combined model using only sales transaction data. Our key idea is to view the problem in terms of primary demand (or first-choice) demand -- that is, the product choices that customers would have made if all products were available in all periods -- and to treat the observed sales as incomplete observations of primary demand. We then apply the expectation-maximization (EM) method to this incomplete, primary demand model and show that it leads to a simple, highly efficient iterative procedure for estimating the model which provably converges to a stationary point of the log-likelihood function. We illustrate the estimation procedure on several industry data sets and discuss extensions of the approach to non-parametric models of preference.
Garrett van Ryzin (Joint work with Gustavo Vulcano, NYU and Richard Ratliff, Sabre Holdings)
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January 16,
2012
12:30 PM - 2:00 PM (Monday)
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Venkatesh Shankar
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Mays Business School
Texas A&M University
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The Dynamic Impact of Product-Harm Crises on Brand Equity and Advertising Effectiveness: An Empirical Analysis of the Automobile Industry |
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Abstract:
Although firms spend substantial amounts of money to build and maintain brand equity, brand equity is fragile to product-harm crises such as product recalls. Product-harm crises can adversely affect consumer perceptions and preferences as well as weaken the effectiveness of marketing activities (Van Heerde et al. 2007). Despite the potentially devastating effects of these crises, most firms are inadequately informed and underprepared to handle them (Dawar and Pilluta 2000). How do product recalls affect brand equity? How do they influence the effectiveness of different types of advertising, such as product feature advertising, product model advertising and sponsorship advertising? How should firms allocate their advertising spending across different types? The answers to these questions will enable firms make better advertising allocation decisions and rebuild brand equity in response to product recalls.
In this study, we develop a state space model of brand equity based on Kalman filtering to capture the dynamics related to spending on different types of advertising. We then integrate the Kalman filter with a random coefficient demand model based on Berry, Levinsohn, and Pakes (1995). The model allows us to capture the direct effects of product recall on brand equity as well as the indirect effects of recall on brand equity through the effectiveness of different advertising types. We estimate our model on a carefully compiled dataset on the automobile industry, comprising 35 auto companies that had a total of 1,206 recalls during 1997-2002. The dataset includes advertising data on five types, product feature advertising, recalled product model advertising, non-recalled product model advertising, promotional advertising, and sponsorship advertising. Using in a holdout sample, we perform counterfactuals to show how our proposed model and its parameter estimates can be used to improve the allocation of advertising budget across the different types.Our results reveal that product recall has no direct effect on brand equity. However, it has significant negative influence on the effectiveness of each advertising type, with sponsorship advertising suffering the most. The reallocated advertising budget based on our model is associated with higher sales and profits. In addition, our results have other important managerial implications. They suggest that, in response to product harm crises, firms should avoid advertising the recalled model, cut sponsorship advertising, and spend more on product feature advertising.
Keywords: Advertising, Brand equity, Product harm crisis, Kalman filter, BLP approach.
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January 13,
2012
11:00 AM - 12:30 PM (Friday)
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Ram Ganeshan
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Mason School of Business, College of William and Mary
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Understanding the dynamics of managing & leveraging distributed knowledge in Professional Services |
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Abstract:
Organizational knowledge management has become a critical competitive capability for professional services (engineers, doctors, lawyers, etc.). Professional service firms are grappling with how best to manage knowledge flows within the firm; and the flow of knowledge in and out of the firm. Understanding knowledge flows and leveraging it translates to faster (and cheaper) client solutions.
Specifically, I will be talking about two on-going projects. The first involves the dynamics of the transfer of knowledge within business units of the firm. If one business unit of the firm is working on a client problem, for example, how well is it able to leverage not only all of its prior work, but by other business units in the firm.
Another related project investigates if professional service firms are able to leverage the experience of their sub-contractors. They use but do not own the work product - can firms leverage this type of knowledge?
The focus of this talk will be on the issues related to leveraging such “distributed knowledge” within the firm via empirical estimation of learning curve models. We will report preliminary results based on our experience with an Architectural/Engineering design firm.
Ram Ganeshan (joint work with Tonya Boone and Robert L. Hicks)
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January 13,
2012
3:00 AM - 4:30 AM (Friday)
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Tapas Kundu
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Senior Researcher
Centre for the Study of Civil War, Peace Research Institute Oslo(PRIO)
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Resistance, redistribution and investor-friendliness. |
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Abstract:
If a government has ability and willingness to redistribute the surplus created by an external investor, why do we still observe resistance to such investment, sometimes in the form of destruction of productive assets? We explain such surplus destruction as a credible signal sent to the government by an affected group of its low valuation of investment. The information-constrained government values such a signal and uses it to implement a better redistribution scheme: thus resistance can be interpreted as a demand for redistribution. The extent of destruction is decreasing in the extent that the government cares for the affected group. While resistance has an informational value, it has two distinct costs: it directly reduces surplus and also reduces the investor’s incentives to create surplus. The government uses a tax/subsidy on the investment to maximize weighted social surplus, and we show that the possibility of destruction may force the government to be too soft in its negotiation with the investor. A protection for the investor either legal (banning signaling) or financial (compensation for losses incurred due to resistance) can improve the society’s welfare
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January 11,
2012
1:30 PM - 3:00 PM (Wednesday)
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Ramanath Subramanyam
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University of Illinois
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Contracting for Knowledge Intensive Services: An Empirical Investigation of IT Sourcing Arrangements |
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Abstract:
This paper focuses on contractual provisions in external sourcing of innovative services. Such agreements require protection of key knowledge assets, whilst simultaneously providing incentives for heuristic search to enable problem solving and knowledge transfer. We conceptualize two distinct dimensions of knowledge in the inter-organizational context: problem solving complexity and the need for synthesis of knowledge bases across organizational boundaries. Integrating explanations from transaction cost economics, incomplete contracting theory and knowledge-based research, we analyze a sample of IT outsourcing contracts to investigate the role of three contractual provisions: joint decision making rights, intellectual property safeguards, as well as the intensity of the incentives. Contracts for bilateral agreements that involve high problem solving complexity contain stronger and more clearly elucidated joint decision rights, which rely less on measurable outcomes, in conjunction with strong IP safeguards and low powered incentives. When prior experience of the vendor is critical for fulfillment of the contracted task, contracts include joint decision rights. Exchanges characterized by complementarity in knowledge bases across firms are more likely to be governed by high powered incentives contracts while exchanges characterized by co-specialization are governed by contracting arrangements involving joint decision rights in conjunction with low powered incentives.
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January 11,
2012
3:30 PM - 5:00 PM (Wednesday)
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V Srinivasan
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Adams Distinguished Professor of Management, Emeritus
Graduate School of Business, Stanford University
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An Approach to Prioritize Customer-Based, Cost-Effective Service Enhancements |
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Abstract:
We propose an approach to prioritize service improvements based on the twin objectives of higher customer value and lower cost. The approach involves (1) conducting qualitative customer studies to identify a list of possible service improvements, (2) conducting a quantitative, conjoint-like survey to determine values customers attach to each of the improvements, (3) collecting data on the costs of making the service improvements, and (4) putting the data in (2)–(3) together to prioritize improvements using a “bang for the buck” rule. The approach also allows for maximizing the likely increased service usage resulting from any subset of service improvements subject to a budget constraint. We illustrate the proposed approach in the context of improving passenger train service between a pair of cities in India. An adaptive self–explicated approach is used for obtaining customer values and cost estimates. The customer values so elicited display substantial face validity.
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Full Text
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January 11,
2012
11:00 AM - 12:30 PM (Wednesday)
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Tonya Boone
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Mason School of Business, College of William and Mary
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Sustainability issues in Healthcare and Fashion |
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Abstract:
In this session I will describe some of the projects that I’ve been working on while at ISB. They include the following:
• Sustainability in Healthcare: Towards a Theory of Environmental Capabilities. This project draws on research in operations strategy and resource based view of the firm to develop a model that describes how healthcare organizations are developing capabilities that support sustainable operations.
• Investigating the Alignment of Sustainability Perspectives in the Retail Fashion Supply Chain (with R. Batra). This project empirically examines the congruence in attitudes about sustainability among consumers, retailers and designers.
• Exploratory Study of Sustainable Luxury (with R. Batra). This project uses qualitative methods to define sustainable luxury, identify the tradeoffs and the implications for service design and delivery.
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December 23,
2011
12:30 PM - 2:00 PM (Friday)
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Professor Amit Joshi
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College of Business Administration, University of Central Florida,
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Are you A ‘Viral Star’? Conceptualizing and Modeling Inter Media Virality |
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Abstract:
The spread of social media has meant that User-generated Content (UGC) has become an important form
of communication. Most of the past research in social media has concentrated on analyzing message
virality or the causes of why certain messages go viral. We posit that accounting for media virality, a
phenomenon where messages are transferred beyond the original media they were carried in, has become
imperative. In this paper we argue that media virality is a function of product characteristics and propose
a framework for capturing this type of virality using just two dimensions, the inter media elasticity and
inter media duration, together referred to as an entity’s Inter Media Reactivity (IMR).
We illustrate the application of our concept using data on movie stars across several media. We calculate
the IMR for each star, and demonstrate how media virality differs across each, and also analyze the starspecific
characteristics that drive media virality. Subsequently, we relate the media virality of stars to the
performance of their movies. Our research thus provides a theoretical contribution to the literature by
exploring media virality while also providing several managerially relevant substantive insights about the
motion picture industry.
Key Words: Social media, advertising, motion picture industry
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December 22,
2011
12:00 PM - 2:00 PM (Thursday)
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Professor Sarat Dass
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Michigan State University
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Predicting The Extent of Uniqueness Of A Fingerprint Match |
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Abstract:
It is possible for fingerprints from two different persons to be closely matched with each other. A spurious match such as this should be detected to avoid a false positive identification. Given a match between a fingerprint pair, we would like to quantify the extent of this match statistically. This is possible to do if the variability of the underlying processes are accounted for and modeled adequately. The extent of a match depends on two sources of variability: (1) inter-class variability arising from the spatial configuration of fingerprint features, and (2) intra-class variability arising from image quality, variability due to the fingertip placement on the sensor and elastic distortion of the skin. To adequately capture feature variability, we develop distributions on the feature space based on marked point processes that model clustering tendencies and spatial correlations between neighboring marks. Inference is carried out in a Bayesian MCMC framework. The proposed class of models is fitted to real fingerprint images to demonstrate the flexibility of fit to different kinds of fingerprint feature patterns arising in practice. Evidence of a Paired Impostor Correspondence (EPIC) is developed as a measure of fingerprint uniqueness, and its predictive value is obtained using simulation from the fitted models to quantify the extent of an observed match.
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December 21,
2011
6:00 PM - 7:30 PM (Wednesday)
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Professor Sunil Mithas
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Robert H. Smith School of Business at the University of Maryland
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Information Technology and Globalization: Theory and Evidence |
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Abstract:
Abstract:
Does information technology (IT) enable firms to globalize their operations and achieve higher foreign revenues and foreign profits? Although several studies have argued that IT can help firms globalize their operations, few studies have empirically tested this conjecture. We identify and discuss three mechanisms that explain why IT investments enable firms to globalize their operations – value chain coordination, value chain configuration, and local responsiveness. Using data on 259 multinational firms for an 8-year period (1999 – 2006), we find that aggregate IT investments are positively associated with higher levels of foreign revenues and lower levels of total costs. In turn, the increase in foreign revenues and reduction in total costs mediate profits from foreign operations. IT investments also help to increase domestic revenues and domestic profits. On the whole, we find that IT contributes to globalization both through higher revenues and lower total costs.
These findings provide indirect evidence for the relative importance of underlying theoretical mechanisms that explain why IT helps firms to achieve higher foreign revenues and foreign profits, two key measures of a firm’s globalization. For example, results suggest that IT allows firms to increase foreign revenues through a local adaptation mechanism, and spread total costs over a larger revenues base through globalization efforts through value chain coordination and/or value chain configuration mechanisms. By documenting how IT creates value for firms through enabling globalization, we extend the business value of IT and international business literatures that have so far touched on firm-level globalization benefits from IT investments only in passing. This study is also important from a managerial perspective, because an understanding of how IT influences foreign revenues and foreign profits can help firms make appropriate changes in their IT strategies and IT investments to improve competitiveness.
Key words: IT investments, globalization, multinational corporations, foreign revenues, foreign profits, value chain, coordination, configuration, responsiveness, business value of IT.
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December 21,
2011
10:30 AM - 12:00 PM (Wednesday)
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Professor M.V. Shyam Kumar
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Lally School of Management and Technology,
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The Collateral Effects of Corporate Social Responsibility:Evidence From Bank Loans |
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Abstract:
We study the impact of Corporate Social Responsibility (CSR) on bank loans. Findings suggest CSR has a negative impact on loan spread.In addition, CSR negatively moderates the effect of loan characteristics such as maturity, and firm characteristics such as leverage.We also findCSR positively moderates the effect of a firm’s growth opportunities on spread. Our study implies CSR acts as a form of collateral which the firm‘puts on the line’ when transacting with stakeholders including banks.But CSR also consumes scarce managerial resources which may temper its beneficial effects by leading to tradeoffs with economic opportunities.
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December 21,
2011
11:30 AM - 1:00 PM (Wednesday)
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Professor Tanya Menon
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Kellogg School of Management
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Cognitive Activation of Networks |
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Abstract:
I present three studies from our research program on dynamic cognitive network activation (Smith, Menon,& Thompson, 2011; Menon &Smith, working paper). Networks are not simply social structures, they are also cognitive structures that can dynamically shift as a function of people’s emotions and identities. Our first two studies show that high and low socioeconomic status people spontaneously activate, or call to mind, different subsections of their networks when faced with job threat. Using a multi-method approach (General Social Survey data and a laboratory experiment), we find that, under conditions of job threat, people with low status exhibit a winnowing response (i.e., cognitively activating smaller and tighter subsections of their networks), whereas people with high status exhibit a widening response (i.e., activating larger and less dense subsections of their networks). A third study theoretically and empirically links identity and emotional state to network activation. We show that confirmed identities (both high status people whose high power was confirmed and low status people whose low power was confirmed) lead to widen their networks, as compared to conflicted identities (people facing a mismatch between their socioeconomic status and primed power). The emotional signature of having confirmed identities was comfort and control, which mediated respondents' network activation. One implication is that narrowing the network in response to threat might reduce low-status group members’ access to new information, harming their chances of finding subsequent employment and exacerbating social inequality. We also consider the psychological challenges that empowerment-based policies may present.
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December 20,
2011
12:30 PM - 2:00 PM (Tuesday)
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Professor John Roberts
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, Australian National University and London Business School
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What leads to impact in Marketing Science? |
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Abstract:
Marketing science can claim many successes in directing management decision making in practice. Segmentation and mapping tools, conjoint and discrete choice models, and econometric analyses of promotional scanner data represent a few of the area in which analytical techniques have influenced the planning and execution of marketing activities. However, when one looks at the level of penetration of these tools, I argue that the picture is considerably less rosey. This seminar firstly examines the level of impact on practice that marketing science has had from the perspectives of academics, consultants and managers (Roberts, Kayande, and Stremersch 20111) and then digs deeper into the characteristics of that work which has had the most impact, as measured by the finalists in the Gary Lilien Marketing Science Practice Prize (Lilien, Roberts, and Shankar 20112).
1 Roberts, John H., Ujwal Kayande, and Stefan Stremersch (2011) “From Academic Research to Marketing Practice: Exploring the Marketing Science Value Chain” Working Paper, The Australian National University.
2 Lilien, Gary L., John H. Roberts, and Venkatesh Shankar (2011) “Effective Marketing Science Applications: Insights from ISMS–MSI Practice Prize Finalist Papers and Projects” Marketing Science Institute Working Paper Series, Report No. 11-101
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Full Text
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December 19,
2011
10:30 AM - 12:00 PM (Monday)
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Jan A. Van Mieghem
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Kellogg School of Management at Northwestern University
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Global Dual Sourcing and Order Smoothing |
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Abstract:
After a decade of rapid globalization, there is increased interest to bring offshored production closer to home. A key driver behind global sourcing has been its ability to increase margins by using cheap labor and materials. However, those benefits do not come for free: offshoring suffers from higher transaction costs, long and complicated logistics that are sensitive to increased volatilities in demand, supply, currency exchange rates and oil prices, and political and environmental criticism. In addition, responding to customers' new-product requests, shorter delivery times, and swift corrections to improve designs and quality has magnified the need for responsive and agile supply chains. A complete reversal to local sourcing, however, is unlikely and ill-advised. Indeed, the concepts of global and local sourcing are not mutually exclusive. Rather, the combined use of multiple supply sources, each of which is different and possesses unique advantages, might be better than any single sourcing strategy.
The main contribution of this paper is to provide the first exact and analytically-tractable analysis of a dual sourcing policy that is easy to implement. This policy allows us to design an ordering policy that allocates the order volume to both sources so as to optimally trade-off cost and responsiveness. We present a tight approximation for the optimal volume fraction ordered from the slow but cheap source, which we refer to as the strategic base or offshoring allocation, and its corresponding total landed cost. The strategic allocation is characterized by a simple formula that provides structural insight on the impact of financial, operational and demand parameters, and a starting point for data-driven decision making.
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December 19,
2011
12:30 PM - 2:00 PM (Monday)
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Prof. Anne T. Coughlan
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Kellogg School of Management,
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The Information Content of Marketing Investment |
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Abstract:
Although the short-run response of the financial markets to announcements of marketing
investments has been well-established in the extant literature, less is known about how the basic
information inherent in these announcements flows from the “black box” of the firm to external
market participants. In response, we conceptualize that since marketing investments are
determined by individuals with the best knowledge of the firm’s future environment,
announcements of a marketing investment provide valuable information about the future
productivity of that marketing investment. Our analysis yields two distinct predictions. First,
market reaction to an investment decrease announcement will be less pronounced than market
reaction to an investment increase announcement, a result that stands in sharp contrast to
received theory. This is because the mean-shifting and uncertainty-reducing aspects of new
information tend to mitigate each other for decrease announcements but reinforce each other for
increase announcements. Second, the information content of marketing investment
announcements will be intimately related to investors’ prior information; consequently, firms
that announce similar marketing investments can provoke markedly different market reactions.
Examining a sample of sales force size change announcements by 131 firms in the
pharmaceutical industry, we find broad support for our analytical conceptualization.
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Full Text
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December 19,
2011
10:30 AM - 12:00 PM (Monday)
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Professor Seemantini Pathak
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C.T. Bauer College of Business, University of Houston
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The Institutional Environment and Female Representation on Boards of Directors . |
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Abstract:
This study proposes that the institutional environmentimpacts the level of female representation within a firm’s board of directors. Based on proxy data for the top 150 Fortune 500 companies of 2006, hypotheses concerning the three forms of isomorphism through which the institutional environment may impact a company’s board gender diversity are put forward and tested.Our results show support for the impact of two hypothesized forms of coercive isomorphism and for normative isomorphism on female board representation. Our findings contribute to furthering research onboard composition and institutional theory by helping to explain the integral role that institutional mechanisms play in shaping board composition and by identifying possible antecedents of female board representation that have previously been absent from the governance literature.
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December 18,
2011
1:30 PM - 3:00 PM (Sunday)
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Professor John Upson
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Richards College Of Business ,University of West Georgia
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UWG on Entrepreneurial Advice Networks |
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Abstract:
Entrepreneurship research is dominated by two theories of opportunity formation: discovery and creation. The specific entrepreneurial actions leading to identification and exploitation of each likely differ. We explore entrepreneurs’ alignment of human resources, and specifically advice networks. Extant research favors diversity within advice networks as a source of idea generation and pursuit. However, we argue that diversity may not always be advantageous. Drawing from literature on entrepreneurial opportunities, social network theory, and cognitive psychology, we suggest that diversity within advice networks may benefit entrepreneurs pursuing discovery opportunities but similarity within advice networks may benefit entrepreneurs pursuing creation opportunities. Further, we argue that proper alignment between opportunity type and advice network results in superior performance. We test these assertions using publically available survey data to classify entrepreneurial opportunities and advice networks.
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December 16,
2011
1:30 PM - 3:00 PM (Friday)
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Professor Joydeep Chatterjee
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University of Washington, Bothell, WA
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Speed, Offshore-Leverage, and Scope Change in Outsourcing Projects: A Study of the Global IT-Services Industry |
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Abstract:
In this paper we attempt to understand how capabilities may be developed so as to provide a sustainable basis for competitive advantage in the context of the global IT services industry. Using detailed project-level data from a large Indian IT services multinational we find that speed of project execution follows a quadratic relation with project margin and a linear relationship (negative) with project revenue productivity. Increasing offshore work increases project margin without impacting revenue productivity. Change of scope in the middle of project significantly increases revenue productivity, but does not impact project margin. The results indicate how service delivery capabilities can be used successfully by execution focused service providers to increase margin without increasing cost to customer even in the face of changing requirements.
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December 15,
2011
1:30 PM - 3:00 PM (Thursday)
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Professor Mayukh Dass
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Texas Tech University, Rawls College of Business
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Power of Customer Voice: Shape Analysis of Consumer reviews |
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Abstract:
Consumer reviews are becoming increasingly important in consumers’ purchase decision process and in the success of new products. Prior literature acknowledges that consumer reviews impact product sales but are divided on the impact of the three metrics – valence, volume, and dispersion of consumer reviews – on product sales. The underlying thesis of the current paper is that these differences in findings are driven by the evolution of these metrics over time. Traditional models, which do not account for this evolution(shape) may fail to incorporate potentially vital information, and thereby lead to divergent conclusions. In this paper, using 395,297 online movie reviews collected from Yahoo and IMDB on 405 movies released from Feb. 1999 to Dec. 2010, we seek answers to the following questions: 1) Do consumer reviews matter i.e. can consumer reviews be used to predict box office sales? 2) How to quantify consumer reviews? Which metric – valence, volume or dispersion is more informative? 3) How do consumer reviews evolve? Does the shape of one metric influence the shape of another? Does their shape matters? We use functional data analysis to study the above questions, including the interactions among these eWOM matrics
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December 15,
2011
12:30 PM - 2:00 AM (Thursday)
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Prof. Sundar Bharadwaj
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Terry College of Business, University of Georgia
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CONSTITUENTS-BASED MARKETING: AN EMERGING CAPABILITY TO COMPETE IN AN INCREASINGLY MULTI-STAKEHOLDER ENVIRONMENT |
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Abstract:
Firms are increasingly facing consumers with a heightened focus on the social, employee, and environmental consequences of their marketing activities and stakeholders with a greater capacity to exert influence on firm and customer behavior. This trend points to a need for marketers to find competitive advantage and differentiation by evolving from a single minded customer focus towards an understanding of a broader set of stakeholder requirements. The emerging Stakeholder Marketing literature has articulated such a need and proposed an initial formulation of its implications for firm behavior and performance. However, consensus on the capabilities required by firms to adopt a stakeholder orientation has not been reached nor the consequences of such actions tested. This research draws on depth interviews of managers and a theory-in-use approach to introduce Constituents-Based Marketing (CBM) as the capability to develop product offerings that can address the needs of multiple constituencies at the same time. An empirical test across 44 countries uses instrumental variable regression and finds CBM capability to be positively associated with sales growth, employee engagement, and company trust. The analysis finds the CBM effects to be stronger in highly networked as well as competitive conditions. External stakeholder pressures serve as a motivator, while firm cross functional processes and market orientation provide the ability for a firm to develop CBM capabilities. The results are robust to estimation methods and endogeniety concerns. We present theoretical implications and managerial guidelines for the generation of market intelligence and the design of marketing organizations.
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December 13,
2011
10:30 AM - 12:00 PM (Tuesday)
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Professor T Ravichandran
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Lally School of Management & Technology, Rensselaer Polytechnic Institute
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ALLIANCE EXPERIENCE, IT-ENABLED KNOWLEDGE INTEGRATION, AND VALUE GAINS |
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Abstract:
In this paper we explore the role of related alliance experience, diversity in alliance experience, and information technology enabled knowledge integration capabilities in value creation in alliances. We conceptualize alliance experience in terms of relatedness and diversity and further identify the functional focus and industry of the partner as defining the nature of alliance experience. We theorize that both type-based and partner-industry based related experience will have a positive effect on alliance value. We also theorize that both type-based and partner-industry based diversity in alliance experience will have a positive effect on alliance value. Further, we theorize that while alliance experience enhances a firm’s knowledge, such knowledge has to be integrated, institutionalized and made accessible for it to be used effectively in future alliances. Hence firms with higher IT-enabled knowledge integration capabilities are more likely to do so and thereby enhance alliance value. Using data from 1030 alliances made by 89 firms across 11 industries, we test our research propositions. We find that type-based related experience is positively related to value gains in alliances whereas partner industry-based related experience affects alliance value negatively. We also find that a firm’s IT enabled knowledge integration positively moderates the effects of both related and diverse experience on value creation in alliances. Our findings highlight that while knowledge gained through learning by doing is important, complementary capabilities that enables firms to leverage and utilize such knowledge are also necessary for successful value creation in alliances. We interpret these findings and discuss their implications for research in both strategic management and information systems areas.
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December 12,
2011
11:30 AM - 1:30 PM (Monday)
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Professor Aparna Joshi
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University of Illinois at Champaign
Urbana
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Role Models, Queen Bees, or Black sheep? The Effects of Women’s Incongruent Status on Expertise Recognition & Productivity in Groups |
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Abstract:
Multiple theoretical perspectives offer varied and often paradoxical accounts of women¹s incongruent status in male-dominated work groups. Integrating these varied perspectives, I tested distinct mechanisms by which women¹s incongruent status (i.e., situations where women have acquired high status) influences expertise identification and utilization in science and engineering research groups. Across three studies in this setting, applying hierarchical linear modeling techniques, I found that women were more likely than men to devalue the expertise of women in high status positions (Study 1).
However, this in-group devaluation was mitigated by gender identification among women and exacerbated by perceived legitimacy of gender based status differences (Study 2). Further, perceived expertise predicted expertise utilization in groups and the demographic context of the group minimized the negative effects of incongruent status on women¹s expertise utilization. Women¹s expertise, in general, was more likely to be utilized in gender balanced groups and in academic units with a gender-balanced department faculty. At the group level, the presence of high status females in the group was associated with higher research productivity when groups were embedded in academic units with a gender-balanced faculty (Study 3). These findings provide compelling evidence that variations in the demographic context signal the legitimacy of individuals in incongruent status positions and shape both interpersonal attributions and information-processing in groups
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November 18,
2011
3:00 PM - 4:30 PM (Friday)
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Ravi Anshuman
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Professor of Finance
Indian Institute of Management
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Private Placements to Owner-Managers: Theory and Evidence |
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Abstract:
We present an asymmetric information model to examine private placements issued to
owner-managers. Our main conclusion is that allowing private placements to insiders can mit-
igate, if not eliminate, the underinvestment problem. Our model predicts that announcement
period returns for private placements should be: (1) positive; (2) dependent on regulatory
constraints that determine the issue price; (3) positively related to volatility; (4) negatively
related to leverage; (5) negatively related to owner-managers’ shareholdings (6) inversely re-
lated to proxies of manipulation; and (7) negatively related to illiquidity. We empirically test
our model’s predictions, along with others from literature, on a sample of private placements
issued in the Indian capital markets during 2001-09 and report empirical evidence largely
consistent with the model.
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November 18,
2011
12:30 PM - 2:00 PM (Friday)
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Prof. Murali K. Mantrala
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University of Missouri,Columbia
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A New Approach for Nonparametric Network Efficiency Analysis with Application to Daily Newspapers |
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Abstract:
Many organizations (DMUs) are comprised of networked sub-DMUs or departments, i.e., the outputs of some departments serve as inputs to others and vice versa. For example, in media-platform firms like newspaper companies, the outputs of the editorial department are inputs to the advertising department and vice versa. Extant approaches for efficiency analysis either ignore the network effects or make parametric assumptions to enable statistical inference on the estimated efficiencies. Hence, we develop a new method that incorporates the network effects and furnishes nonparametric inference on efficiencies. Applying the proposed method to the US daily newspaper industry, we not only demonstrate that it outperforms existing approaches, but also that it yields new insights into department-level efficiencies.
Keywords: Efficiency Analysis, Sliced Inverse Regression, Media-Platforms, Networked DMUs
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Full Text
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October 28,
2011
11:00 AM - 12:30 PM (Friday)
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Srinagesh Gavirneni
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College of Business (Nanyang Business School)
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Concierge Option for a Service Offering: Design, Analysis, Impact, and Adoption |
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Abstract:
Concierge Medicine is the most visible implementation of a new trend of introducing a fee-based premier option in a service offering. This is usually done for the purposes of segmenting customers based on their willingness or ability to wait for the service. Using a realistic yet representative model setup, we perform a detailed analysis to (i) determine the conditions (fees, cost structure, etc.) under which the concierge option is profitable for the service provider, (ii) quantify benefits accrued by the premier customers; and (iii) evaluate the resulting impact on the other customers. We show that, under a wide range of system parameters, introducing a concierge option benefits everyone and also compute the magnitude of these benefits. These benefits are larger when the variance in the customer waiting costs is high and the system utilization is high. We complement these results with data on the adoption of MDVIP (the most popular concierge medical service in the US) service and show that the service has been adopted in areas where the median income is significantly larger and the population is older. Both income and age are good proxies for the waiting cost that a customer attributes to waiting for receiving medical service.
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October 14,
2011
1:30 PM - 3:00 PM (Friday)
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Shad S. Morris
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Fisher College of Business,The Ohio State University
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Towards a Global Human Capital Architeture: The Locus of Value Creation and Appropriation through Differentiated HR Practices |
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Abstract:
A potential strength and weakness of the MNE is that it is characterized by a heterogeneous workforce that is geographically dispersed, and embodied by location-specific human capital. This paper develops a framework of the processes by which firms engage in knowledge retention, exchange and combination in order to create a firm-specific and globally relevant body of knowledge. We explore HR practices that may facilitate both new value creation and capture for subsidiaries and the MNE.
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October 14,
2011
3:00 PM - 4:30 PM (Friday)
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E. Somanathan
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Professor
Planning Unit, Indian Statistical Institute
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Are embankments a good flood -control strategy? A case study of the Kosi river |
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Abstract:
Should embankments be used to control floods? This is a question of great importance in the eastern Gangetic plain where embankment breaches cause severe flood damage every year, and huge damages due to major breaches every few years. Critics of the embankment policy have called for a strategy of living with floods by building dispersed infrastructure to cope with floods. However, no cost-benefit analysis of alternative strategies is available.This paper makes a first pass at evaluating embankments. Using two years or more of data from 504 households in 28 villages in the floodplain of the Kosi river in north Bihar, I compare agricultural output, wage incomes, unemployment, and other indicators of well-being between villages subject to flooding from rivers and villages not subject to such flooding. I find that, for the most part, villages subject to river flooding are no worse off than villages not subject to such flooding. Thus, the evidence provides no support for the embankment strategy.
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Full Text
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October 7,
2011
3:00 PM - 4:30 PM (Friday)
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Surendrakumar Bagde
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Director in the Ministry of Finance
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Dismantling the Legacy of Caste: Affirmative Action in Indian Higher Education |
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Abstract:
Public policy in modern Indian features affirmative action—policies intended to reduce persistent inequality stemming from a centuries-old caste structure. We study the effects of one such affirmative action program. Specifically, we examine the consequences of an admissions policy to engineering colleges that fixes percentage quotas, common across 214 colleges, for each of six disadvantaged castes. We have obtained access to exceptionally rich data for study of this affirmative action program—data that include the test scores that were used to administer admissions decision rules, as well as detailed independent ability metrics that did not influence admissions decisions. Our analysis indicates that for targeted students the program has significant and substantial positive effects both on college attendance and first-year academic achievement.
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October 5,
2011
2:00 PM - 3:30 PM (Wednesday)
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Professor Ravi Shanker Gajendran
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University of Illinois
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: "Flexible Work Arrangements and Employee Contextual Performance: Are Flexible Workers Remotely Good Soldiers?" |
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Abstract:
Are employees that use flexible work arrangements (FWAs) good organizational citizens? Business and scholarly discourse suggest that flexible workers risk being labeled as bad organizational citizens: employees using FWAs are perceived as lacking dedication to their organization and as unavailable when their colleagues need help. However, research so far has not empirically examined the impacts of FWAs on citizenship behaviors. Our study develops and tests a theoretical model linking FWAs to employee contextual performance. Findings suggest that FWAs have positive effects on employee contextual performance by enhancing perceptions of autonomy.
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September 30,
2011
3:00 PM - 4:30 PM (Friday)
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Sankar Mukhopadhyay
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Assistant Professor
University of Nevada Reno
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From Illegal to Legal: The Wage Gain from Legalization |
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Abstract:
Economic performance of the illegal immigrants is a central issue in the debate over illegal immigration. In this paper I estimate the wage gain from legalization of a previously illegal immigrant in the U.S. I use propensity score matching and data from New Immigrant Survey 2003. The wages of legal immigrants provide a valid control for the wages of illegal immigrants. Since the wages of the treatment and the control group both before and after the legal permanent residency are available, Difference-in-Difference matching estimators are implemented to account for potential (time invariant) unobserved heterogeneity. Estimates suggest a wage gain of 19% to 32% from legalization of previously illegal immigrants. Finally I discuss potential policy implications of this result
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September 26,
2011
3:00 PM - 4:30 PM (Monday)
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Amparo Castello Climent
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University of Valencia
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Mass Education or a Minority Well Educated Elite in the Process of Development: the Case of India |
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Abstract:
This paper analyses whether in developing countries mass education is the key or a highly well educated elite should be more beneficial for growth. Using the Indian census data as a benchmark and enrollment rates of different levels of schooling we compute annual attainment levels for a panel of 16 Indian states from 1961 to 2001.Results show that one standard deviation increment in the share of population with tertiary education is 3 times more beneficial for growth than a one standard deviation increment in literacy. Using simulations we consider two alternate policies: one that doubles the increments to the literacy rates (relative to its baseline rate of increase)and another that doubles the annual increments to the share of adult population with tertiary education. We show that at the end of 35 years, the state following the latter policy has a per capita GDP 1.5 time more than the state that emphasizes the former.
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September 26,
2011
11:00 AM - 12:30 PM (Monday)
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Srikanth Jagabathula
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Stern School of Business, New York University
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Nonparametric choice modeling: applications to Operations Management |
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Abstract:
With the recent explosion of choices available to us in every walk of our life, capturing the choice behavior exhibited by individuals has become increasingly important to many businesses. At the core, capturing choice behavior boils down to being able to predict the probability of choosing a particular alternative from an offer set, given historical choice data about an individual or a group of "similar" individuals. For such predictions, one uses what is called a choice model, which models each choice occasion as follows: given an offer set, a preference list over alternatives is sampled according to a certain distribution, and the individual chooses the most preferred alternative according to the sampled preference list. Most existing literature, which dates back to at least the 1920s, considers parametric approaches to choice modeling. The goal of this thesis is to deviate from the existing approaches to propose a nonparametric approach to modeling choice. Apart from the usual advantages, the primary strength of a nonparametric model is its ability to scale with the data -- certainly crucial to applications of our interest where choice behavior is highly dynamic. Given this, our main contribution is to operationalize the nonparametric approach and demonstrate its success in several important applications.
Specifically, we consider two broad setups: (1) solving decision problems using choice models, and (2) learning the choice models. In both setups, data available corresponds to marginal information about the underlying distribution over rankings. So the problems essentially boil down to designing the `right' criterion to pick a model from one of the (several) distributions that are consistent with the available marginal information.
First, we consider a central decision problem in operations management (OM): find an assortment of products that maximizes the revenues subject to a capacity constraint on the size of the assortment. Solving this problem requires two components: (a) predicting revenues for assortments and (b) searching over all subsets of a certain size for the optimal assortment. In order to predict revenues for an assortment, of all models consistent with the data, we use the choice model that results in the `worst-case' revenue. We derive theoretical guarantees for the predictions, and show that the accuracy of predictions is good for the cases when the choice data comes from several different parametric models. Finally, by applying our approach to real-world sales transaction data from a major US automaker, we demonstrate an improvement in accuracy of around 20% over state-of- the-art parametric approaches. Once we have revenue predictions, we consider the problem of finding the optimal assortment. It has been shown that this problem is provably hard for most of the important families of parametric of choice models, except the multinomial logit (MNL) model. In addition, most of the approximation schemes proposed in the literature are tailored to a specific parametric structure. We deviate from this and propose a general algorithm to find the optimal assortment assuming access to only a subroutine that gives revenue predictions; this means that the algorithm can be applied with any choice model. We prove that when the underlying choice model is the MNL model, our algorithm can find the optimal assortment efficiently.
Next, we consider the problem of learning the underlying distribution from the given marginal information. For that, of all the models consistent with the data, we propose to select the sparsest or simplest model, where we measure sparsity as the support size of the distribution. Finding the sparsest distribution is hard in general, so we restrict our search to what we call the `signature family' to obtain an algorithm that is computationally efficient compared to the brute-force approach. We show that the price one pays for restricting the search to the signature family is minimal by establishing that for a large class of models, there exists a "sparse enough'' model in the signature family that fits the given marginal information well. We demonstrate the efficacy of learning sparse models on the well-known American Psychological Association (APA) dataset by showing that our sparse approximation manages to capture useful structural properties of the underlying model. Finally, our results suggest that signature condition can be considered an alternative to the recently popularized Restricted Null Space condition for efficient recovery of sparse models.
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September 23,
2011
2:00 PM - 3:30 PM (Friday)
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Professor James M. Schmidtke
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California State University Fresno
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Excuses, Excuses, Excuses: When they help, when they hurt |
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Abstract:
Abstract:
The current studies examine the effects of excuses on reactions to misbehavior. Results indicated that excuses reduce the likelihood that behavior is perceived as wrong and reported when the event clearly violates prescribed rules or norms but actually increases the likelihood that the behavior is perceived as wrong and reported when the situation is ambiguous
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September 23,
2011
3:00 PM - 4:30 PM (Friday)
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Ashish Tiwari
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Department of Finance, Tippie College of Business
University of Iowa
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Cross Trading and the Cost of Conflicts of Interest of Mutual Fund Advisers |
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Abstract:
Using a unique dataset we provide new evidence on the impact on client fund performance of cross trading related conflicts of interest (CINT)experienced by mutual fund advisers. Our results suggest that the cross trading practices of advisers impose a significant performance penalty on
their client funds. A portfolio of funds managed by advisers in the top CINT quintile significantly underperforms the portfolio of funds managed by advisers in the bottom CINT quintile by 0.83% per year, over the period 1995-2007. We evaluate the response of investor flows to different
CINT measures and document that flows are generally insensitive to them. We also show that the incentives of advisers to engage in cross trading are directly related to their opportunities for
generating revenues from trading operations, and that adviser governance plays an important
monitoring role for cross trading. Our results highlight the need for heightened awareness among
investors and regulators of the potential costs associated with these transactions.
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Full Text
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September 23,
2011
12:30 PM - 2:00 PM (Friday)
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Price Variability and Store Brand Sales |
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Abstract:
Stores often follow a certain pricing strategy. They vary their prices because of several reasons – as a response to changing inventory levels, competitor pricing, change in costs on the supply side, nearing expiration date of perishable goods, manufacturer’s promotion or at times as a strategy to increase store foot-falls. This varying of prices is reflected as – EDLP (Every Day Low Price, where prices are kept at a constant level and Wal-Mart is one successful example) or Hi-Lo (where prices fluctuate due to frequent promotions and this is followed by well-known grocery chains like Dominick’s Finer Foods in Chicago).
Stores also differ in the frequency by which they change prices. A pricing decision may be both short term and long term (Shaffer and Zhang, 2002). For instance, on a short-term, a retailer could use price discounts to compete against weaker brands, price discriminate among brand switchers or increase consumption (Bronnenberg, et al, 2006). On a long-term, the price change could reflect the changes in overall cost structure, demand or market structure. A retailer might also use discounts to drive category or store level profitability. Often the frequency of price change is also a result of the planning horizon set by a particular retailer (Bronnenberg, et al, 2006). Of late, researchers like Kadiyali, Sudhir and Rao (2001); Pauwells, et al, 2004; Bronnenberg, et al, 2006 have emphasized the need to study this frequency of price change. Pauwells, et al, 2004, for instance mention “as there is increasing evidence that the same relationship need not hold among two variables at different frequencies, various substantive marketing problems may warrant further investigation along that dimension”.
From a customer’s perspective, she is able to explain some of this variability while not able to explain other. For instance, a customer is likely to explain why the price of milk is the highest close to the date of manufacture and why is it at a huge discount closer to the date of expiration. She is likely to have an explanation for seasonal discounts during festival times. However, other instances of price variations go unexplained. In this study we examine only unexplained variability (both depth and frequency of price change)
From a customer’s perspective, unexplained volatility, both magnitude (depth) and frequency in price, is likely to be perceived as bad. It is likely to erode the ‘trust’ a customer has on the store and its offerings. A customer is likely to doubt the store’s quality, integrity or benevolence as a consequence of unexplained volatility. This is also likely to affect her decision to buy the store’s own brand.
Some evidence of this effect can be found in the existing literature like Dhar and Hoch, 1995 who look at EDLP (low price variability) vs. Hi-Lo (high price variability) strategy of stores’ impact on store brand penetration. They find a significant relationship between the two.
Using scanner panel data (from IRI) of two categories – diapers and deodorants, we also found a significant negative correlation between weekly price variation and store brand penetration.
The literature on store brands penetration has focused on two aspects – understanding the cross category variation in store brand penetration through analysis of scanner panel data (Dhar and Hoch, 1995; Hoch and Banerjee, 1993; Sethuraman, 1992) and understanding the store brand customer using consumer-level data (Ailawadi and Neslin).
When we say volatility is ‘generally’ is perceived by consumers as bad, we say this because certain consumers may not regard it as bad. For instance, Deal-prone consumers have been shown to value transaction utility rather than, or in addition to, the acquisition utility associated with buying on deal (i.e., buying on deal has psychological benefits irrespective of the financial consequences, Lichtenstein, Netemeyer, & Burton, 1990). Such customers are likely to welcome variability in pricing rather than look at it as an irritant.
Customers are reluctant to buy store brands in product categories where the perceived risk is higher (Batra and Sinha 2000; Narasimhan and Wilcox 1998). Some of the product categories have well-established higher perceived risk (for example, cold and flu medicine) than others (for example, gift wrap). The effect of variability in pricing and frequency of price change on trust and subsequently store brand purchase is likely to be greater in product categories where trust is relatively more important.
Based on the above, this study proposes to ask the following questions:
Does store price volatility (magnitude, frequency, explained/ unexplained) effect store brand penetration?
1. Does ‘Trust’ play a mediating role between them?
2. Do customer characteristics (deal-proneness) play a moderating role in the relationship?
3. Does the trust associated with the product category also moderate the relationship?
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Full Text
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September 12,
2011
12:30 PM - 2:00 PM (Monday)
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Prof. Sharique Hasan
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Stanford University
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Categorization in Labor Markets: Evidence from the Indian Administrative Service |
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Abstract:
Prof. Sharique Hasan, Assistant Professor - Stanford University will present a talk on 12th Sep, 2011
Abstract:
In this article, we study the career effects of getting diverse versus specialized experience. Existing research on social categorization in labor markets has found that specialized experience is privileged in external labor markets. That research has suggested that in internal labor markets characterized by managerial rotation, generalists should not be penalized. We examine the relationship between specialized experience and career outcomes using rich longitudinal data on the careers of Indian Administrative Service Officers, members of the Republic of India’s elite bureaucratic organization. Contrary to prior theory, our results show that diversified experience is penalized at both early and late career stages. We theorize that the differentiation of jobs is sufficient to introduce bias in favor of specialists even in the presence of full information and collective norms that favor generalists
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September 9,
2011
10:00 AM - 11:30 AM (Friday)
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Professor Luis Martins
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McCombs School of Business
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Bridging Difference and Distance in Global Virtual Work: The Role of Social Identification |
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Abstract:
Professor Luis Martin, Associate Professor - McCombs School of Business will present a talk on ‘Bridging Difference and Distance in Global Virtual Work: The Role of Social Identification’
Abstract
Global virtual work arrangements have been growing in prominence over the last three decades. Research and anecdotal findings suggest that such arrangements struggle for effectiveness against the forces of dispersion and demographic difference. However, the processes underlying those challenges are not well understood. To address the gap, this research uses social identity theory and the contact hypothesis to examine the role played by interpersonal identification in explaining the effects of nationality differences on performance in global virtual supervisor-subordinate dyads. It proposes that a difference in nationality between a supervisor and subordinate will have a negative effect on subordinate performance, which will be mediated by subordinate identification with the supervisor. Furthermore, based on the contact hypothesis, it proposes that the effects of nationality difference on identification will be moderated by the nature of contact between the subordinate and supervisor. It introduces the idea of “contact richness” as an important construct in virtual work, and proposes that it will explain additional variance over and above that explained by the primary dimensions of contact proposed by the contact hypothesis. Support for the research model was found in two field studies conducted using global virtual dyads in the software development industry. The findings suggest several implications for future theoretical development on the effects of demographic diversity in virtual settings, and provide actionable guidelines for managers engaged in global virtual work.
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September 7,
2011
2:00 PM - 3:30 PM (Wednesday)
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Dr. Jonathan Pinto
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Imperial College Business School
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Relational Bias in Team Formation |
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Abstract:
Team formation is investigated in two studies that use sport-related archival data culled from the Internet. Unlike team formation in organizational decision-making situations, when individuals form teams they tend to use their relational ties as a heuristic even when the decision-making is unconstrained. Thus there appears to be a relational bias in team formation decision making that is more generic than is suggested by sociology and entrepreneurship research. In line with the leadership literature this relational bias is more pronounced when the decision maker is also the team leader. Further, the leader’s role interdependence impacts the extent to which there is a relational bias, both to the team as a whole, and to the sub-unit that “backs up” the leader’s role.
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August 26,
2011
11:00 AM - 12:30 PM (Friday)
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Glen Schmidt
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David Eccles Faculty Fellow and Associate Professor, Department of Operations and Information Systems, David Eccles School of Business, University of Utah
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Consumer Valuation of Modularly Upgradeable Products |
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Abstract:
While product modularity is often advocated as a design strategy in the operations management literature, little is known about how customers respond to modular products. In this research we undertake several experiments to explore consumer response to modularly upgradeable products in settings featuring technological change. We consider both the initial product choice (between a modularly upgradeable product and an integral one) and the subsequent upgrade decision (replacement of a module vs. full product replacement). We uncover the following paradox: while modularity might seem to be most-advantageous for a short life-cycle product (because a modular design would avert having to fully replace the product after only a short time), such a product faces two strikes: first, consumers tend to excessively discount the cost savings associated with the modular upgrade, and second, we observe a preference reversal between the initial purchase and the point of upgrade (at the point of initial purchase, people foresee making a full product replacement in the future, yet, when faced with the actual upgrade decision, they are more likely to revert to a modular upgrade). On the other hand, consumers insufficiently discount cost savings when the time-to-upgrade is long. Finally, we discuss and test several pricing and product design strategies that the firm can use to respond to these cognitive biases.
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August 26,
2011
3:00 PM - 4:30 PM (Friday)
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Archishman Chakraborty
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Associate Professor of Finance
Schulich School, York University
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Authority, Consensus and Governance |
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Abstract:
We look for necessary properties of shareholder-value maximizing corporate boards when
shareholders face a trade-o¤ between improving information sharing between the board and
management and reducing distortions in decision-making arising out of managerial agency. We
draw a distinction between the alignment of preferences of the board with management (which
a¤ects information ‡ows) and the allocation of authority to the board or management (which
a¤ects ex-post decisions). We show that it is in general suboptimal to allocate authority to
management. Authority should be held by a supervisory board that may be imperfectly aligned
with both shareholders and management. Indeed, even when management has captured all au-
thority and the board only has an advisory role, the optimal board may be designed to withold
information from management. An optimal advisory board must however be su¢ ciently aligned
with management in order to create ex-post consensus and ensure authority is irrelevant. Given
optimal board alignment, the value of the board’s authority equals the cost of requiring consen-
sus. Shareholders may hold ultimate decision-making authority within an optimal supervisory
board without any loss in welfare and in many cases this is strictly optimal.
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Full Text
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August 25,
2011
5:30 PM - 7:00 PM (Thursday)
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Rajib Saha
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Simon Graduate School of Business, University of Rochester, NY
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Custom Contract and the Role of Group Purchasing Organizations (GPOs) as Information Intermediary |
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Abstract:
Many hospitals in the United States seek to lower their procurement costs by joining Group Purchasing Organizations (GPOs). GPOs operate as supply chain intermediaries - they do not buy or sell products; instead, they establish contracts with vendors on behalf of member hospitals. In a typical scenario, hospitals become members of a GPO; the GPO negotiates product prices with vendors on behalf of all its member hospitals in order to get deeper volume discount. However, there is evidence that some member hospitals further negotiate directly with the same vendors and contract at a price lower than the GPO price. Such contracts established directly between the same vendor and member hospitals are commonly known as custom contracts. The common perception is that hospitals benefit from these custom contracts because they yield lower prices. Using a game-theoretic model, we surprisingly find that exactly the opposite is true: the provision for custom contracts benefits vendors at the expense of hospitals. We also find that uncertainties in market prices largely drive the market outcomes. When the GPO shares indicative information on market price with its member hospitals in an effort to better educate them, it increases not only the social surplus but also the profitability of the GPO vendor. Our research makes significant contribution towards the literature on group buying as well as intermediaries - we show how with the provision for custom contracts, GPOs expectedly act as demand aggregators for relatively small hospitals, while for the rest, they unexpectedly play the role of information intermediaries. We drew our example from the healthcare sector; however, our results can be applied to any other industry in the context of group purchasing.
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August 22,
2011
11:00 AM - 12:30 PM (Monday)
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Harish Krishnan
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Sauder School of Business
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Incentives for Transshipment in a Supply Chain with Decentralized Retailers |
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Abstract:
We examine transshipment incentives in a decentralized supply chain where a monopolist distributes a product through independent retailers. A key insight is that the transshipment price determines whether the firms benefit from, or are hurt by, transshipment. In particular, we show that the manufacturer prefers to set the transshipment price as high as possible, while retailers prefer a lower transshipment price. Given the important role of the transshipment price in determining the benefits that each firm gets from transshipment, it is useful to consider transshipment in the case where retailers are under joint ownership (a “chain store”) and the transshipment price does not play a role. This comparison yields two surprising results. First, if decentralized retailers control the transshipment price, they will choose a relatively low transshipment price as a way to mitigate the manufacturer's ability to extract profits by increasing wholesale prices; therefore, the manufacturer may prefer dealing with the chain store which does not have a transshipment price rather than with decentralized retailers. Similarly, the decentralized retailers can use a low transshipment price to achieve higher total profits than a chain store.
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August 19,
2011
11:00 AM - 12:30 PM (Friday)
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Sriram Narayanan
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Michigan State University
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Resource and Task Management in Software Maintenance Operations: An Empirical Analysis |
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Abstract:
We examine resource allocation issues in a setting with uncertain task resolution times. Using software maintenance requests as a context, we model task resolution times in corrective software maintenance process using multiple hazard distributions. we present a hazard model to capture the decrease in the marginal likelihood of successful resolution of a task as the number of effort-cycles expended on the task increases. We estimate the model parameters using real-life data from a systems software product. We demonstrate that the model fits real-life data very closely. Using the model, we numerically analyze implications for capacity planning and service execution in the context studied. Specifically, we demonstrate that imposing temporal cut-off policies in task resolution substantially reduces waiting times for incoming MRs in the system while minimally impacting the rate of successful MR resolution. Further, we show that these approaches can be used to improve productivity and resource utilization, and reduce the occurrence of “firefighting” behavior commonly encountered in this environment. We demarcate the diverse tradeoffs that managers need to evaluate during resource allocation in order to enhance the overall performance of the software maintenance operations. Finally, we discuss other managerial settings in which the modeling approach can be applied.
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August 19,
2011
3:00 PM - 4:30 PM (Friday)
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Alok Bhargava
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Professor of Economics
University of Houston
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Executive compensation, share repurchases and investment expenditures:Econometric evidence from U.S. firms |
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Abstract:
This paper modeled the dynamic inter-relationships between average salary, bonus, and stock options granted to top executives of 700 U.S. firms in 1996-2005 using a merged ExecuComp and Compustat database. Comprehensive models were also estimated for firms’ share repurchases and research and development and investment expenditures, taking into account simultaneity and distributional misspecification issues. Simple autoregressive models showed that while salaries increased steadily, time profiles of bonus and stock options were complex. Second, firms’ total assets, intangible assets, market-to-book value, and share repurchases were positively associated with the values of stock options granted. Third, stock options exercised in the previous year were significant predictors of share repurchases indicating that firms avoided dilution of earnings per share. Fourth, share repurchases were negatively associated with expenditures on research and development and short-term investments. From a policy standpoint, the results suggest that high levels of stock options granted to executives and share repurchases by U.S. firms are unlikely to have beneficial effects for raising future productivity.
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August 12,
2011
1:30 PM - 3:00 PM (Friday)
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Sarang Deo
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Indian School of Business
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Decentralization of Resource-Constrained Health Care Networks: Access vs. Accuracy Tradeoff and Network Externality |
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Abstract:
A major constraint in scaling up large scale treatment programs in resource-limited settings is the unavailability of appropriate diagnostic devices that can inform clinical decisions in a timely manner. Most existing devices, due to their technical complexity, are placed in a few central laboratories serving hundreds of remote health facilities. Such centralized diagnostic networks are characterized by long delays in providing results and consequent poor patient retention. Several point-of-care (POC) devices that aim to obviate the need for such complex diagnostic networks are under development. Occasional attempts at evaluating POC devices have focused on technical dimensions such as accuracy. However, this approach does not incorporate the key value proposition of POC devices{improved access through timely provision of test results. In this paper, we develop a mathematical model that explicitly incorporates the tradeoff between accuracy and access to evaluate the network-level effectiveness of POC devices. Using this framework, we argue that the key operational decision at the policy maker's disposal is placement of the devices: Which facilities should receive the device under resource constraint? We compare the optimal placement solution with rules of thumb that are followed in practice and/or are suggested in practitioner literature. Our analysis suggests that these heuristics can result in significant loss of effectiveness in general. However, their relative performance depends on device characteristics and network characteristics. We characterize conditions under which these rules of thumb are optimal. We apply our methodology to infant HIV diagnosis and calibrate our model using representative data from a sub-Saharan country.
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August 11,
2011
6:00 PM - 7:30 PM (Thursday)
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Qiang Zeng (David)
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The Paul Merage School of Business, University of California, Irvine
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The Role of Investment in Innovation on Asset Ownership in IT Outsourcing |
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Abstract:
We develop an economic model that examines whether a vendor or client should own the assets underlying service delivery in an IT outsourcing relationship. Prior research has argued that the vendor should own the assets to provide incentives for investment on the production assets. We allow for investment in innovation that can benefit both client and vendor in the relationship. Our model offers an explanation for the empirically observed heterogeneity in asset ownership structure using Incomplete Contracts Theory. We find that optimal ownership structure can vary due to the different incentives of the client and vendor and differences in the available set of investment opportunities. Interestingly, we find that scenarios exist where both the client and vendor agree on the ownership structure and where they disagree. When investment in innovation enables new services and features, the client should retain ownership of the assets. When investment leads to cost savings, the vendor should own the assets. The parties disagree on asset ownership structure when the investment opportunities yield similar levels of benefits to both vendor and client. In this case neither party wants to own the assets. When there are multiple investment opportunities with payoffs in new services and in cost reduction, both client and vendor prefer to own the assets. We extend the model to allow renegotiation and find, counter-intuitively, that when renegotiation is allowed the parties always disagree on the ownership structure. In contrast, in the absence of renegotiation, the client and vendor agree on the ownership structure in most cases. We find that allowing renegotiation leads to greater investment in innovation but also results in more gaming between the parties with ex post surplus extraction and more free-riding.
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August 5,
2011
1:30 PM - 3:00 PM (Friday)
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Raj Rajagopalan
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Marshall School of Business, University of Southern California
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Product variety and coordination in a supply chain |
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Abstract:
Manufacturers typically sell consumer products through retailers and the presence of intermediaries has interesting ramifications for their product variety and pricing decisions. Retailers may want higher variety to help reduce price competition but the costs of variety are borne by the manufacturer. The increased variety may increase demand and profits for the manufacturer too but this depends on market-specific factors as well as costs. We explore these interactions through a model wherein a manufacturer sells multiple product variants at a wholesale price to two retailers who in turn compete for consumers. Consumers choose between the retailers based on the price and variety offered by each retailer. Several insights emerge from the analysis. We find that some retailer differentiation benefits the retailers (not the manufacturer) but too much differentiation hurts both the retailers and the manufacturer. If the market is fully covered, then the channel is coordinated even with a simple wholesale pricing contract. If the retailers incur costs to sell the product, the manufacturer loses out more than the retailers and in fact absorbs some or all of the retailer costs. Finally, asymmetry between retailers has some interesting consequences.
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August 5,
2011
3:00 PM - 4:30 PM (Friday)
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Abhijit Ramalingam
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School of Economics
University of East Anglia
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Endogenous Status Concerns in the Firm |
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Abstract:
Using a linear principal agent model with endogenous status concerns, the paper shows that
it is individually rational for agents in a rm to develop and exhibit status concerns vis-a-vis each
other. Workers are, by their choices of status concerns, able to transfer surplus from the the rm
to themselves. Further, relative concerns are shaped by the relative strengths and weaknesses
of the workers in the rm. Finally, and surprisingly, a rm's prot is reduced (relative to the
benchmark moral-hazard model) by workers who exhibit such \endogenous" relative concerns.
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August 3,
2011
10:00 AM - 11:30 AM (Wednesday)
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Prof. Kirthi Kalyanam
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Leavey School of Business, Santa Clara University
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Measuring Causal Position Effects in Search Advertising: A Regression Discontinuity Approach |
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Abstract:
In this paper, we investigate the causal effect of position in search engine advertising
listings on outcomes such as click-through rates and sales orders. Since the position is
typically determined through an auction, there are significant selection issues in measuring
position effects. Correlational results are likely to be biased due to the selection
in position induced by strategic bidding by advertisers. Additionally, experimentation
is rendered difficult in this situation by competitors’ bidding behavior, which induces
selection biases that cannot be eliminated by randomizing the bids for the focal advertiser.
We show that a regression discontinuity approach is a feasible approach to
measure causal effects in this important context, where other approaches to obtaining
causal effects are typically infeasible. and apply it to a dataset of 23.7 million daily
observations containing information on bids, search advertising results and linked outcomes.
Our data set is unique in that it contains information not only for the firm
but also its major competitors who are advertising in the same category. We find in
our empirical application that causal position effects are significantly underestimated
if the selection of position is ignored. The data set also contains information on two
advertising targeting options offered by Google: Exact and Broad match and our causal
estimates provide insights into the value of this type of semantic targeting. We find
important differences in the effects of position for exact vs. broad match keywords, with
exact match keywords showing strong position effects at the top most position, and
broad match keywords having strong position effects only lower down.We are also able
to study weekday and weekend effects and find that position effects are lower on the
weekend than on weekdays.
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Full Text
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August 3,
2011
1:00 PM - 2:30 PM (Wednesday)
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David Souder
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Assistant Professor
University of Connecticut
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Does Temporal Myopia Hurt Firm Performance? An Empirical Test |
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Abstract:
This paper investigates the common but unproven claim that firm performance suffers because managers are myopic about long-term investments. We use accounting data on the expected life of equipment purchases to measure temporal orientation for over 1000 publicly-traded US manufacturing firms, and find a positive relation between temporal orientation and financial returns. As predicted, however, we also find diminishing marginal returns for temporal orientation. In addition, we show that firms in relatively short horizon industries fall farther short of optimal levels of temporal orientation than firms in long horizon industries. These results confirm the intuition that myopia hurts performance, but also identify important limits on the value of lengthening a firm's temporal orientation.
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August 3,
2011
11:30 AM - 1:00 PM (Wednesday)
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Deepak Agarwal
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Principal Research Scientist at Yahoo! Research Labs
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Recommender Systems - The Art and Science of Matching Items to Users |
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Abstract:
Algorithmically matching items to users in a given context is essential for the success and profitability of large scale recommender systems like content optimization, computational advertising, web search, shopping, movie recommendation and so on. Developing such match-making algorithms is a new scientific sub-discipline that involves strong interactions among several disciplines like computer science, statistics, machine learning, economics, optimization. This talk will discuss mathematical formulations, the progress made, and the big challenges that lie ahead. Throughout, I will use examples from real-world recommender systems in content optimization and computational advertising at Yahoo!
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August 2,
2011
1:00 PM - 2:30 PM (Tuesday)
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Philip Bromiley, Dean’s Professor
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Paul Merage School of Business; University of California
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Option exercisability, investment visibility, and long-term strategy |
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July 29,
2011
1:30 PM - 3:00 PM (Friday)
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Saibal Ray
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Desautels Faculty of Management, McGill University
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Durable Product, Used Goods Market And Returns Policies |
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Abstract:
In this presentation, we deal with the issue of how the continued growth of peer-to-peer (P2P) used goods markets for durable products interacts with channel returns policies and affects pricing and product introduction strategies. We do so through two separate papers - while a P2P used goods market is there in both papers, they differ in terms of returns policies that are considered. In the first paper we focus on extra-channel returns policies, i.e., returns policies offered to the end customers by the retailer, while in the second one we concentrate on intra-channel returns policies, i.e., those offered by the manufacturer to the retailer.
Our analysis in the first paper establishes that frequent product upgrades and rising retail prices in many durable product sectors are indeed due to the emergence of the P2P used goods market and how this market interacts with the extra-channel returns policy in altering the relative powers of the channel partners. We also provide empirical support for our theoretical result regarding product upgrades using data from the college textbook industry. In the second paper, we show that a stronger P2P used goods market generally increases the likelihood of an intra-channel returns policy to be the equilibrium strategy. This insight contradicts the burgeoning managerial trend to replace returns contracts with price-only ones for products having rapidly growing used goods markets. Furthermore, we show that when the customers are forward-looking, viability of a manufacturer returns policy is, in fact, negatively impacted by such behavior.
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July 28,
2011
3:00 PM - 4:30 PM (Thursday)
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Sandip Dhole
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Indian School of Business
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Executive Compensation and Regulation Imposed Corporate Governance: Evidence from the California Non-Profit Integrity Act (2004) |
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Abstract:
This study focuses on the impact of the California Non-Profit Integrity Act (2004) (hereafter, the Act or regulation) on executive compensation in affected non-profit organizations in California. The Act, closely modelled after the Sarbanes-Oxley Act (SOX) of 2002, requires charitable organizations in California reporting to the Attorney General’s office to compulsorily form an audit committee and get their financial statements audited by a practicing public accountant. The Act also requires boards of directors of non-profit organizations to approve the compensations of the chief executive officer and the chief financial officer and ensure that the compensation paid is just and reasonable. This study examines whether the Act has really been able to reign in excessive executive compensation in affected non-profits. The issue of the impact of regulation on non-profits is a very interesting one. This is because the absence of an alienable residual claimant makes agency conflict issues in the not-for-profit sector different to those of for-profit sector, making the mechanical extension of latter sector’s research findings to the former questionable. Also, the not-for-profit sector forms a significant part of the US economy, generating $ 1.9 trillion in revenue (about 13% of the US GDP) in 2008. Using Ohio firms as a control for California charities, we find that not only has executive compensation not reduced in the wake of the Act, non-profits seem to be paying more to their executives, on the contrary, after the enactment of the Act. Recognizing that increase in executive compensation is not necessarily bad if non-profits can achieve cost savings elsewhere, we then examine changes in administrative costs and program ratio after the Act. We do not find any evidence to suggest that these two cost items have changed significantly after the Act. We also rule out cost shifting as a potential explanation for the increased compensation costs. Thus, our results call into question the necessity for imposing SOX-like regulation on a sector which clearly has different dynamics than the for-profit sector, for which SOX was intended. Our results have serious policy implications since many states in the USA have already implemented or are planning to implement similar legislation.
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July 22,
2011
12:30 PM - 2:00 PM (Friday)
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Professor Purushottam Papatla
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Sheldon B Lubar School of Business, University of Wisconsin–Milwaukee
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Playability of Movies: An Investigation of the role of Human Resources, Distribution, Critics and Movie Genres in the Italian Movie Market |
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Abstract:
We investigate the relative influence of human capital, distribution, opening week revenues and movie attributes on how long movies last in theaters. The focus of our investigation is the Italian market. We use a survival model with a parametric proportional hazards specification for our analysis. We also account for unobserved heterogeneity, endogeneity of opening week revenues, and a stochastic censoring mechanism, in our model and take a Bayesian approach for our analysis. Our results suggest that the quality and breadth of experience of actors, and the number of screens that a movie is initially released in, have a negative effect on longevity. Opening week revenues and attributes such as the quality of screenwriters, running time, some genres and some types of content ratings such as PG-14 , however, have a positive effect. Implications of the research and opportunities for future research are also discussed.
Keywords: movies, playability, survival analysis, proportional hazards, stochastic censoring, Bayesian analysis.
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July 22,
2011
12:00 PM - 1:30 PM (Friday)
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Anand Nandkumar
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Indian School of Business
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Opening the Black Box of Time Compression: Individual Learning and Forgetting Under Time Pressure |
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Abstract:
In this paper we examine the learning rates of individuals working under normal workload conditions vs. those working under time-pressure conditions. We find that those working under time pressure learn much less than those working under normal time. We also find evidence for significant forgetting by individuals. We suggest that this is one mechanism by which time compression diseconomies affect capability accumulation processes in firms. We also discuss implications for the literature on learning curves: specifically to our understanding of why learning curves may be heterogeneous across organizations and to our understanding of why knowledge may depreciate even in organizations that are continuously operating.
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July 15,
2011
12:00 PM - 1:30 PM (Friday)
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Aditya Jain
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Indian School of Business
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To Pool Or Not To Pool: Delivery System Choice For Vertically Segmented Product Line |
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Abstract:
We analyze the choice of delivery system for a firm that sells make-to-order physical goods and/or services. The market consists of two segments that differ in their preference for product quality as well as their disutility from waiting time. The firm chooses between -- two dedicated delivery systems one for each market segment, and a flexible (pooled) delivery system that serves both segments. While pooled system allows firm to reduce operational cost of delivering products, dedicated systems allow firm to increase revenues by price discriminating customers more effectively. We characterize the optimal choice as a function of market scale, segment ratios, and performance deterioration that may result from mix variability. Our research highlights the effect of market cannibalization on the operations strategy decision of delivery system design.
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July 12,
2011
12:00 PM - 1:30 PM (Tuesday)
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Raghu N. Sengupta
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IIT Kanpur
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Estimation for the multiple regression set up using balanced loss function |
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Abstract:
Consider the estimation problem for the multiple linear regression (MLR) setup, under balanced loss
function (BLF), where both goodness of fit and precision of estimation are modeled using either squared
error loss (SEL) or linear exponential (LINEX) loss functions. We derive the minimum risk estimates for two
different variants of BLF and prove for both the cases the existence of the ubiquitous SEL and LINEX
estimates at the boundary conditions. Conclusions draw from the exhaustive simulation runs prove the
general nature of our proposed theorems.
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July 11,
2011
1:00 PM - 2:30 PM (Monday)
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Professor Praveen Kopalle
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Tuck Executive Education at Dartmouth
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The Joint Sales Impact of Frequency Reward and Customer Tier Components of Loyalty Programs |
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Abstract:
We estimate the joint impact of frequency reward and customer tier components of a loyalty program on customer behavior and the corresponding sales. We provide an integrated analysis and measurement of a loyalty program incorporating customers’ purchase and cash-in decisions, points pressure and rewarded behavior effects, heterogeneity, and forward-looking behavior. We focus on measuring these effects for a hotel loyalty program. The results suggest interesting insights: for example, both components produce net gains in sales, but do not synergize, i.e., they are not complements in terms of incremental sales. We find strong evidence for points pressure, for both the customer tier and frequency reward components, using both model-based and model-free evidence. We find a two-segment solution revealing a “service-oriented” segment that highly values cash-ins for room upgrades and staying in “luxury” hotels, and a “price-oriented” segment that is more price sensitive and highly values the frequency reward aspects of the loyalty program. We conduct policy simulations that vary the reward structure and use the results to recommend adjustments in frequency reward and customer tier program requirements that improve firm revenues. We predict that compared with the existing program, an alternative design more stringent in awarding the frequency-based reward but more generous in awarding the tier-based reward increases the revenue by 8.99%.
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July 8,
2011
12:00 PM - 1:30 PM (Friday)
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Sumit Kunnumkal
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Indian School of Business
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A Randomized Linear Programming Method for Network Revenue Management with Product-Specific No-Shows |
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Abstract:
Revenue management practices often include overbooking capacity to account for customers who make reservations but do not show up. In this paper, we consider the network revenue management problem with no-shows and overbooking, where the show-up probabilities are specific to each product. We propose a randomized linear program to jointly make the capacity control and overbooking decisions with product-specific no-shows. We establish that our formulation gives an upper bound on the optimal expected total profit and that this upper bound is tighter than a deterministic linear programming bound that appears in the existing literature. We describe how the randomized linear program can be used to obtain a bid price control policy. Numerical experiments indicate that our approach is fast, able to scale to industrial-size problems, and can provide significant improvements over standard benchmark methods. This is joint work with Kalyan Talluri(UPF) and Huseyin Topaloglu(Cornell).
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July 8,
2011
12:30 PM - 2:00 PM (Friday)
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Anuj Kumar
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Carnegie Mellon University
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Information Discovery and the Long Tail of Motion Picture Content |
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Abstract:
Recent papers have shown that, in contrast to ―the Long Tail‖ theory, movie sales remain concentrated in a small number of hits. These papers have argued that concentrated sales can be explained, in part, by he-terogeneity in quality and increasing returns from social effects. Our research analyzes an additional ex-planation: how incomplete information may skew sales patterns. We use the movie broadcast on pay-cable channels as an exogenous shock to the availability of information, and analyze how this shock changes the resulting sales distribution.
Our data show that the pay-cable broadcast shifts the distribution of DVD sales toward ―Long Tail‖ mov-ies, suggesting an information spillover from the broadcast. We further develop a learning-based model of DVD demand to precisely quantify the lost DVD sales due to incomplete information. Our study contri-butes to the academic literatures on information provision and market outcomes, and the dynamics of long tail markets.
Keywords: Incomplete information, product discovery, multichannel distribution, movie indus-try, learning model, Long Tail.
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July 4,
2011
12:30 PM - 2:00 PM (Monday)
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Professor S Sajeesh
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Asst. Professor - Marketing, Zicklin School of Business (City University of New York)
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Positioning and Pricing of Conspicuous Goods: A Competitive Analysis |
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Abstract:
We study competitive positioning and pricing strategies in conspicuous goods markets. For conspicuous
products, each consumer values the product less as more consumers own it, thus exhibiting
negative consumption externalities. We incorporate the effect of consumption externality for each
consumer to be dependent on their location vis-à-vis the location of the firm. Specifically, we assume
that a customer ‘closer’ to a firm may feel more let down if that firm caters to too many customers.
Our work extends the existing literature by formally recognizing that consumers are heterogeneous
in their sensitivity to product exclusivity. We find that for conspicuous goods, product differentiation
is lower; a finding that explains otherwise counterintuitive empirical results in the literature. We also
show that under some conditions, price competition can be higher in markets with negative consumption
externalities. When firms are asymmetric with respect to consumption externality effects, we
show that a firm which exerts higher externality tends to charge lower prices. Finally, firms may be
better off if they reduce heterogeneity in their consumers’ sensitivity to consumption externality.
Keywords: Negative Consumption Externalities, Conspicuous Goods, Pricing, Hotelling Models.
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July 1,
2011
3:00 PM - 4:30 PM (Friday)
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Krishna B Kumar
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Senior Economist
RAND Corporation
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Indian Entrepreneurial Success in the United States, Canada and the United Kingdom |
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Abstract:
Indian immigrants in the United States and other wealthy countries are successful in
entrepreneurship. Using Census data from the three largest developed countries receiving
Indian immigrants in the world -- the United States, United Kingdom and Canada -- we
examine the performance of Indian entrepreneurs and explanations for their success. We find
that business income of Indian entrepreneurs in the United States is substantially higher than
the national average and is higher than any other immigrant group. Approximately half of
the average difference in income between Indian entrepreneurs and the national average is
explained by their high levels of education while industry differences explain an additional
10 percent. In Canada, Indian entrepreneurs have average earnings slightly below the
national average but they are more likely to hire employees, as are their counterparts in the
United States and United Kingdom. The Indian educational advantage is smaller in Canada
and the United Kingdom contributing less to their entrepreneurial success.
Keywords: entrepreneurship, immigration, Indian migrants
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July 1,
2011
1:00 PM - 2:30 PM (Friday)
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Prabuddha De
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Accenture Professor of Information Technology
Krannert School of Management, Purdue University.
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An Empirical Investigation of the Effects of Advanced Web Technologies on Product Returns |
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Abstract:
Internet retailers have been making significant investments in advanced technologies, e.g., zoom, color swatch, and alternative photos, that are capable of providing detailed product-related information and, thereby, mitigating the lack of “touch-and-feel,” which, in turn, is expected to lower product returns. However, a clear understanding of the impact of these technologies on product returns is still lacking. This study attempts to fill this gap by using several econometric models to unravel the relationship between product-related technology usage and product returns. Our unique and rich dataset allows us to measure technology usage at the product level for each consumer. The results show that zoom usage has a negative and weakly significant coefficient, suggesting that a higher use of the zoom technology leads to fewer returns. Color swatch, on the other hand, does not seem to have any impact on product returns. Interestingly, we find that the use of alternative photos increases the likelihood of returns. Thus, our findings show that different technologies have different effects on product returns. Moreover, with a higher use of alternative photos, loyal consumers are more likely to return, whereas the effect on non-loyal consumers is insignificant. We provide explanations for all these findings based on the extant literature on customer satisfaction. We also conduct a number of tests to ensure the robustness of the findings.
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June 24,
2011
1:00 PM - 2:30 PM (Friday)
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Suresh Kotha
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Battelle/Olesen Chaired Professor
Foster School of Business, University of Washington
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The Evolution Firm Boundaries: The Unfolding Sage of the Boeing’s 787 Airplane Program |
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Abstract:
How firms draw boundaries is a topic of significant interest to management scholars. A firm’s boundary represents a simple demarcation between the organization and its environment (Santos & Eisenhardt, 2005). This study examines the co-evolution of a firm’s capabilities and boundaries in the context of a radical product introduction. It highlights specific antecedents that drive the particular choice of boundaries a firm adopts. Specifically, drawing on multiple theoretical conceptions of boundary choice, it examines Boeing's introduction of the 787-Dreamliner airplane and the impact of this product introduction on boundary choice and capability development. The study’s important contribution is to highlight how firm capabilities and boundaries co-evolve at the product level (often through trial and experimentation). It highlights “patch-work” mechanisms that Boeing has introduced in order to coalesce into a coherent configuration.
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June 24,
2011
3:00 PM - 4:30 PM (Friday)
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Naresh Bansal
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Saint Louis University
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Flight-to-Quality Effects across the Cross-section of Stocks. |
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Abstract:
Prior work that has examined flight-to-quality (FTQ) influences on stock returns has primarily focused on the stock market at the aggregate level. We present the cross-sectional evidence on this issue over the 1986 to 2008 period, coinciding with availability of the Volatility Index (VIX) from the Chicago Board Option Exchange. We create different disaggregate stock portfolios comprised of individual stocks with different values for their market-betas, their betas with respect to the change in stock market risk, their total volatility, their illiquidity, and their market capitalization. We compare the cross-sectional variation in these disaggregate portfolios during the times of extreme VIX-changes with that during more `normal' times. We examine the cross-sectional variation in terms of the: (a) differences in contemporaneous mean portfolio returns, (b) differences in the subsequent mean portfolio returns, and (c) differences in subsequent comovement with T-bonds.
We find that the larger and the more-liquid stocks exhibit greater responsiveness to the extreme VIX-changes. Our findings suggest that FTQ influences the prices of larger and more liquid stocks relatively more, presumably because: (1) larger stocks comprise the substantial majority of the market's capitalization and, thus, take the brunt of stock-bond asset class FTQ effects, and (2) larger, more liquid stocks are less expensive to trade in stressful times.
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June 24,
2011
12:30 PM - 2:00 PM (Friday)
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Professor Pradeep Racherla
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Asst. Professor of Marketing, West Texas , A & M University
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Pay-What-you-Want Pricing for Mobile Phone Applications: The Affect of Social Influences and Privacy Assurances |
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Abstract:
Mobile Marketing and Location-Based Services: Exploring Consumer Perceptions on Privacy, Utility, and Willingness-to-Pay I would like to present the results of two studies related to location-based marketing on mobile phones. Study 1 is under preparation to be submitted to ‘Information Systems Research’ and Study 2 at the AMA Summer Ed. Conference, 2011. I would like to obtain valuable feedback from your faculty.
Study 1: Location-based services and applications (apps) on mobile devices are becoming increasingly popular because of the added value to personal productivity and entertainment. However, along with the added value comes a much greater (perceived) threat to personal privacy. Now, not only can technology track and use our personal information, but our location information as well. For example, some mobile applications visualize the real-time traffic congestion on a user’s commute to and from work. Because the latest smart phones are also equipped with an accelerometer which senses the user’s speed, the mobile application could sell its user’s speed and location data to the local police department in order to place speed cameras in the most strategic locations. On the other hand, the new open mobile platform has created a market place for many new developers and small businesses to enter the marketplace or move into the mobile arena.
But if they want to succeed, they must be able to overcome the privacy concerns of mobile application consumers. Privacy has turned out to be the key concern of modern consumers in this 24/7 connected environment (Peltier et al, 2009). The purpose of this study is to empirically examine the significance of this increasingly relevant privacy dimension. Through two separate simulation experiments of over 800 consumers, we examine how the assurance of location information privacy (as well as mobile app quality and network size) influences users' perceptions of location privacy risk and the utility associated with the app which, in turn, affects their adoption intentions. The results indicate that location privacy assurance is of great concern and that assurance is particularly important when the app’s network size is low or if it’s quality cannot be verified.
Study 2: Pay What You Want (PWYW) pricing has become a popular pricing strategy, and has attracted increasing interest from both academics and practitioners in the recent past (Kim et al, 2009). Yet, few studies have directly examined consumer behavior when sellers use this pricing across various products and distribution channels. In this study, we apply the theories of social norms, reference prices and privacy assurances to test various factors that affect consumers' willingness to purchase and pay (WTPP) for mobile applications in a PWYW condition. It is our conjecture that app designers can creatively activate social norms to positively influence mobile users’ intent to purchase an app and willingness-to-pay (WTP) than what they originally intended. The conceptual core of the paper is based on the rich stream of research pertaining to social norms and social influences (e.g., Cialdini et al. 2004). The research model and the hypotheses in this study are built on this platform and supported by multi-disciplinary theories on reference prices (Muzumdar et al. 2005; Dholakia and Simonson 2005), and network effects and privacy calculus (Culnan and Armstrong 1999; Laufer and Wolfe 1977). Two experiments with about 1200 consumers show that social information positively affects WTPP while reference prices negatively affect willingness to pay. In this, consumers tend to be greatly influenced by social information from local groups when compared to global groups. Further, privacy assurances significantly enhance consumers' willingness to pay.
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June 24,
2011
9:30 AM - 11:00 AM (Friday)
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Sridhar Seshadri
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McCombs School of Business, University of Texas at Austin
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Fixed versus Random Proportions Demand Models for Assortment Planning |
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Abstract:
We consider the problem of determining the optimal assortment of products to offer in a given product category when customers have heterogeneous tastes. Each customer is characterized by a type, which is a list of products he or she is willing to buy in decreasing order of preference. We assume that customers arrive sequentially over one period and choose from the set of products remaining in inventory at the time of their visit. This is called consumer-driven, dynamic, stock-out based substitution. It is conventional to assume that the type of a customer is known only upon arrival and is independent of the type of other customers. This is called the random proportions demand model. This problem has been shown to be very hard to solve and no efficient method to obtain the optimal solution is known to our knowledge. However, if the number of customers of each type is a fixed proportion of demand there exists an efficient algorithm for solving for the optimal assortment. In this paper, we show that the fixed proportions model gives an upper bound to the optimal expected profit for the random proportions model. This bound may be used to compare the performance of the many heuristics that have been suggested by various authors to solve the assortment planning problem with consumer driven, dynamic, stock-out based substitution and random proportions of customers of each type. We also provide a bound for the componentwise absolute difference in expected sales between the fixed proportions and the random proportions models, which is asymptotically tight as the inventory vector is made large, while keeping the number of products fixed. This result provides us with a lower bound to the optimal expected profit. When the optimal assortment under fixed proportions is large, the lower bound and upper bound are very close to each other.
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June 23,
2011
6:00 AM - 7:30 AM (Thursday)
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Samuel R. Garman
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Carnegie Mellon University
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Look Before You Lend? Search and Automated Agents in an Internet Enabled Two-Sided Market for Person-to-Person Loans |
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Abstract:
A two-sided market describes a situation in which a “platform” facilitates an economic transaction between two distinct types of market participants. A key aspect of any two-sided market is the presence of cross-type and possibly intra-type network externalities under the influence of the platform. The extant two-sided market literature has focused primarily on the platform pricing decision. This article posits that frictional aspects of two sided
markets that facilitate matching are also extremely important and the tremendous flexibility that Internet-enabled two-sided markets have in market design gives the platform a significant opportunity to influence these frictions.This article theoretically and empirically examines the impact of a platform design feature on the equilibrium behavior of a two sided market that enables person-to-person (P2P) or peer-to-peer loans. More specifically
I examine how introducing pre-defined automated bidding agents to a P2P lending market affect prices, volume, and welfare.
I provide theoretical analyses showing that introducing such automated agents can help the market clear each period, reduce price dispersion, and increase total market surplus. Interestingly, it is possible for the introduction of these agents, which may help lenders extract surplus form borrowers, to simultaneously drive some borrowers out of the market and increase total market volume and surplus generation. This apparent contradiction is
possible because there is an increase in the successful matching of borrowers who remain in the market.
The empirical section looks at the actual impact of introducing pre-defined bidding agents to the Prosper.com P2PL marketplace. Mirroring the theoretical predictions, there is evidence of increased loan originations in submarkets where the bidding agents are active. The agents can also be linked to a decrease in price dispersion further suggesting the bidding agents enhanced market efficiency.
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June 21,
2011
3:00 PM - 4:30 PM (Tuesday)
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Seema Sangita
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PhD
University of California
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The Effect of Diasporic Business Networks on International Trade and Investment Flows |
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Abstract:
International migrants have unique opportunities to form business networks in their home countries and in their countries of origin. Several studies have shown that migration flows increase bilateral trade and investment flows between countries. This takes place through two channels - first, the migrants have a taste for the consumption goods from their home countries and second, the migrants create networks that transmit information. The latter reflects the potential of diaspora networks in reducing information barriers and search costs in international trade. This paper disentangles the two effects in order to quantify the information effect of migration. Further, this paper addresses the issue of direction of causality between migration and trade.
The study uses a panel data set of bilateral migration stocks with origins in over 200 countries migrating into 30 OECD countries between the years 1990 and 2000. A corresponding panel data set is constructed that classifies bilateral trade data into intermediate and final goods and then sub-classifies each of these categories into homogeneous and differentiated goods. I use this data set to distinguish between the ‘taste for home goods effect’ and ‘information effect’ of migration. I show that the migrants’ role in exchange of information through business networks does lead to a significant increase in bilateral trade among countries. Moreover, I find that this effect is greatest in the trade of differentiated goods and that the highly educated migrants are most effective in business networking. Migrants also play a crucial role in the flow of foreign direct investment between different countries.
Finally, this paper constructs an instrumental variable based on citizenship laws of the countries of destination. I use this instrument to demonstrate that migration can potentially lead to an increase in the flows of commodities and capital.
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June 17,
2011
9:30 AM - 11:00 AM (Friday)
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ManMohan S Sodhi
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Indian School of Business, Mohali
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The Impact of Promotional Pricing on Unit Sales in the MRO Sector |
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Abstract:
This paper examines how the unit sales (or demand) of a manufacturer are affected by the variance in its prices (due to promotions or various incentive schemes) and by the fixed ordering cost of its industrial customers in the maintenance, repair and operations (MRO) industrial context. Unlike existing models in the literature, we consider the case when both the order size and the order interval are “endogenously” determined by rational customers. In our model, the customer consumption rate of these MRO products – light bulbs, cleaning solution, lubricant, cutting tools – is constant and it is independent of the purchasing price. We develop closed-form expressions for the variance of unit sales, and we examine the impact on unit sales when the firm offers price promotions for multiple products and when there are multiple customer segments with different consumption rates.
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June 17,
2011
3:00 PM - 4:30 PM (Friday)
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Pushkar Maitra
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Monash University
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Selection into Skill Accumulation: Evidence using Observational and Experimental Data |
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Abstract:
This paper combines unique survey and experimental data to examine the determinants of self-selection into vocational training programs. Women residing in selected slums in New Delhi, India were invited to apply for a 6-month long free training program in stitching and tailoring. A random subset of applicants and non-applicants were invited to participate in a set of behavioral experiments and in a detailed socio-economic survey. We find that applicants and non-applicants differ both in terms of observables (captured using survey data) and also in terms of a number of intrinsic traits (captured via the behavioral experiments). Overall our results suggest that there is valuable information to be gained by dissecting the black box of unobservables using behavioral experiments.
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May 27,
2011
12:30 PM - 2:00 PM (Friday)
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Professor Rajdeep Grewal
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Irving & Irene Bard Professor of Marketing
Pennsylvania State University
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Stock Market Rewards for Customer and Competitor Orientations: The Case of Initial Public Offerings |
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Abstract:
Recognizing that initial public offerings (IPOs) represent the debut of private firms on the public
stage, this study investigates how pre-IPO customer and competitor orientations (CCOs) affect IPO
performance. Building on signaling theory, the authors propose that both orientations influence
investors’ sentiments toward an IPO and that IPO-specific variables and facets of the organizational
task and institutional environments moderate the influence of CCOs. The authors test the
framework using data collected from computer-aided text analysis, expert coders, and secondary
sources for 543 firms (IPOs) across 43 industries between 2000 and 2004. A Bayesian shrinkage
model, which accounts for industry-specific effects and uses latent instrumental variables to account
for CCO endogeneity in the IPO context, shows that these orientations positively influence IPO
performance. As for the moderating role of IPO-specific variables and facets of the organizational
task and institutional environments, the authors find that (1) underwriter reputation and venture
funding positively moderate the effects of CCOs, (2) technological and market turbulence positively
moderate and institutional complexity negatively moderates the effect of customer orientation, and
(3) technological turbulence, competitive intensity, and institutional complexity positively moderate
the effect of competitor orientation. The results also show that accounting for endogeneity using
latent instrumental variables substantially improves the predictive validity of the model relative to
alternate model specifications.
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May 20,
2011
3:00 PM - 4:30 PM (Friday)
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Bibek Debroy
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Professor
Centre for Policy Research
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The need for law reform: with a special focus on labour laws. |
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Abstract:
Most discussions of reform focus on economic policy. However, economic policy is based on a legal environment and without an efficient legal environment, growth cannot move to a higher trajectory. Within the legal environment, there are issues of harmonizing statutes, eliminating old statutes, introducing new ones where gaps exist, reducing compliance costs, making administrative law flexible and improving the speed of dispute resolution. These have not received the attention they deserve. The paper will describe these issues in general first, and then illustrate specific problems within the labour law segment, the last often simplistically identified with changes in the Industrial Disputes Act alone.
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May 13,
2011
3:00 PM - 4:30 PM (Friday)
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Mary Lea McAnally
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Mays Business School, Texas A&M University
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CEO Incentives and Downside Risk |
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Abstract:
We examine whether CEO equity incentives are related to firm risk. Our study differs from prior research in two important ways. First, we distinguish between upside and downside firm risk. This research focus is prompted by the simple observation that variance is a symmetric and unconditional risk measure that may not capture how CEOs judge risk. Second, we distinguish between CEO incentives that arise from holdings of stock versus options because these compel CEOs to act differently. For a sample of about 2,600 firms from 1992 to 2008, we find that CEO incentives created by stock and options are differentially related to risk. In particular, both stock and option-based incentives are positively associated with upside risk but only stock-based incentives are negatively associated with downside risk. Our findings are consistent with the notion that CEOs perceive potential losses to their stock holdings as riskier than potential gains. Two conclusions emerge from our findings: 1) CEO incentives reflect risk asymmetrically, and 2) the effect of firm risk has a markedly different impact on CEO’s stock versus option incentives. To the extent that they are not already doing so, compensation committees might tailor contracts to reflect the differential importance of downside and upside risk. From a research perspective, failing to separately consider upside versus downside risk or the differential incentives induced by stock versus options, could lead to false inferences about the efficacy and efficiency of CEO equity incentives.
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May 13,
2011
12:30 PM - 2:00 AM (Friday)
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Professor Ajay K Manrai
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University of Delaware
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A New Perceptual Mapping Technique for Product Positioning and Market Segmentation (Joint work with Dr. Lalita Manrai) |
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Abstract:
Marketing scientists often focus on the concept of “similarity” among brands to understand processes involved in brand switching, competition, brand loyalty, and market structure analysis. The spatial representation of “similarity” serves as a convenient method for describing, summarizing, and displaying such marketing data. Marketing researchers and managers have squeezed increasing levels of insights from such geometric configurations, also called perceptual maps. These maps have implications for definition of market segments and product positioning. This paper presents a new model of similarity, which is theoretically sound and lends itself to geometric representation of brands in a multidimensional metric space. We also provide an empirical test of the new model, and later develop a novel algorithm, which employs “similarity” type of marketing data to construct perceptual maps based on the proposed model. An empirical comparison of the results obtained from the new perceptual mapping technique versus a traditional technique previously used by marketing researchers is also presented.
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May 6,
2011
11:00 AM - 12:30 PM (Friday)
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Shivaram Rajgopal
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Emory University
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Do powerful investors influence the accounting, governance and investing decisions of their investees? The case of Warren Buffett and Berkshire Hathaway |
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Abstract:
Little is known about whether powerful investors are affected by, or subsequently influence, the
management practices of their investees. To examine this question, we rely on the public
statements of a well-known powerful investor, Warren Buffett, “the oracle of Omaha,” and test
whether investees of Berkshire Hathaway exhibit more timely and transparent financial reporting,
stronger governance and superior investing decisions relative to our control firms.
Our findings indicate that, consistent with Buffett’s publicly stated preferences, Berkshire investees
often make transparent conservative accounting and disclosure decisions, measured as timely
disclosure of good and bad news, better mapping of accruals to cash flows, voluntary expensing of
stock option expense and a lower assumed rate of return on pension assets. In the area of
governance, some of Buffett’s preferred compensation practices are followed by BH investees
(notably higher CEO pay for performance sensitivity and lower “excess” CEO compensation), but
board composition is generally inconsistent with his publicly expressed views. BH investee boards
tend to be larger and are no different from the average control firm in terms of proportion of
outside directors and directors share holdings. Consistent with Buffett’s statements, his investees
enjoy substantially higher rates of return on equity, longer periods when firms’ sales growth and
ROE growth outperforms their industry, lower volatility in such rates of return, lower leverage and
have stock prices that trade closer to their estimated intrinsic values. However, there is little
evidence of change in investees’ practices subsequent to Berkshire’s initial investment, suggesting
that Buffett does not appear to be especially active or influential in the decisions of BH investees.
Berkshire’s stock returns outperform the Fama-French four-factor model over 1977-2006, but not
over the most recent decade (1997-2006). Berkshire’s equity investments and a portfolio of equity
holdings that statistically mimics the attributes that Buffett favors beats the market but not the fourfactor
model over most of the sample period. However, the statistically mimicking portfolio is able
to identify firms that report improvements in operating performance five years out.
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May 3,
2011
3:00 PM - 4:30 PM (Tuesday)
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Charles Shi
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National University of Singapore
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Does Disclosure Regulation Work? Evidence from International IPO Markets |
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Abstract:
The economic consequences of disclosure regulation have been the subject of much debate. This study contributes to the debate by examining the informational effect of disclosure regulation and the extent to which the disclosure effect is altered by institutional and firm-level factors in the context of international IPO markets. Our empirical analysis uses a unique sample of 6,025 IPOs from 34 countries over the period from 1995 to 2002. We show for the first time that the stringency of disclosure requirements for IPO prospectuses is negatively associated with the extent of IPO underpricing, after controlling for various country- and firm-level determinants of underpricing. Moreover, we find that the mandatory disclosure effect on IPO underpricing is more pronounced in countries whose capital markets are less integrated and for IPO issuers whose prospectuses are audited by lower-quality auditors. Taken together, our findings are consistent with the view that increased disclosure regulation reduces IPO underpricing in international IPO markets, consequently lowering the cost of equity financing, and that both institutional and firm-specific factors play an important role in understanding the economic consequences of mandatory disclosure in international IPO markets.
Key Words: Disclosure Regulation, Mandatory Disclosure, International IPO Underpricing,
Cost of Equity, Auditor Quality
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April 29,
2011
3:00 PM - 4:30 PM (Friday)
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Tridip Ray
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Associate Professor
Indian Statistical Institute
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Inequality, Neighbourhoods and Welfare of Poor |
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Abstract:
The key idea explored in this paper is that private establishments take both the location and income mix of people into account while making strategic decisions like entry and the price and quality of their products and services. We develop a model that integrates consumers' income distribution with the spatial distribution of their location and look at the consequence of an increase in income inequality on the welfare of the poor. We find an inverted-U shaped relationship between income inequality and the welfare of the poor: if we compare a cross-section of societies, the poor community as a whole is initially better-off living in relatively richer societies, but, beyond a point, the aggregate consumer surplus of the poor starts declining as the society becomes richer. Interestingly the same inverted-U shaped relationship is also observed between income inequality and market access of the poor. There exist multiple equilibria: a bad equilibrium where all the poor are excluded exists simultaneously with a good equilibrium where at least some poor (if not all of them) get served by the market. We have isolated the higher income gap between the rich and poor as the key factor that exposes the poor to this complete exclusion possibility. Finally we compare a mixed-income economy where rich and poor live side by side with a single-income economy inhabited only by a single income group and show that poor are better-off staying in the mixed-income economy as long as the poor income is below a feasibility threshold.
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April 29,
2011
12:30 PM - 2:00 PM (Friday)
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Professor Russell S Winer and William H Joyce
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Stern School of Business, New York University
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Does Advertising Work? What We Know and Some New Evidence |
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Abstract:
Over the past 50 years, many studies have analyzed the response of sales and market share to advertising expenditures. Some other studies have
examined this research and attempted to draw generalizations about whether advertising "works" or not. These meta-analyses have used a variety
of sources of data including field experiments, market response models using aggregate time-series data, and single-source scanner panel data
with information on household-level advertising exposure. The focus has generally been on the advertising-sales elasticities. However, none of the studies that have formed the meta-analysis databases have used the variable that managers really care about--profits--as the dependent variable. In this talk, I will review what we know about short-term advertising elasticities and include some new analyses of a proprietary database of over 270 brand case studies including data on the profitability of the media campaigns. I will compare the resulting advertising elasticities by different media (TV, online, magazine, outdoor, radio, newspapers) to prior findings.
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March 29,
2011
11:00 AM - 12:30 PM (Tuesday)
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Siddharth S. Singh
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Jesse H. Jones Graduate School of Management, Rice University
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Purchases and Returns Over Customer Lifecycle: Implications for Customer Management |
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Abstract:
In customer relationship management, firms manage customer value over the entire duration of the
customer-firm relationship (i.e. customer lifecycle) through managing purchases, returns, and lifecycle
duration. The extant literature has primarily focused on the amount ($) of purchases and returns in
specific types of contexts and recognizes that investigations in other contexts are needed. In addition, the
purchase and return quantity (units) decisions over customer lifecycle are not well understood in most
contexts. Finally, firms commonly use explicit purchase commitments to manage customer behaviors but
these have not been investigated empirically.
This study investigates several issues concerning the quantities (units) of purchase and return, and
purchase commitments, over entire customer lifecycle in an important contractual context that has not
been investigated in depth before.
The issues tested are: (1) Do customers purchase more quantity as their lifecycle progresses? (2)
Do customers return more quantity as their lifecycle progresses? (3) What is the relationship of purchases
and returns with customer defection? (4) Do more purchases imply more returns? (5) What is the
relationship of returns with subsequent purchases and returns? And (6) What is the relationship between
purchase commitments and customer behaviors of purchase, return, and defection? To answer the
research questions, the paper jointly investigates purchase and return quantities, customer defection, and
interpurchase time using data from a membership based direct marketing company where customer
behaviors are stochastic.
A comparison of the findings with those in the extant literature in other contexts reveals that
many of the results are surprising and important. The paper also discusses the significance of the findings
for customer management strategies of firms.
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March 29,
2011
4:00 PM - 5:30 PM (Tuesday)
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Justin Rao
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Research scientist at Yahoo!
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Here, There and Everywhere: Correlated Online Behaviors can Lead to Overestimates of the Effectiveness of Advertising |
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Abstract:
Measuring the causal effects of online advertising (adfx) on user behavior is important to the health of the WWW publishing industry. In this paper, using three controlled experiments, we show that observational data frequently lead to incorrect estimates of adfx. The reason, which we label "activity bias," comes from the surprising amount of time-based correlation between the myriad activities that users undertake online. In Experiment 1, we track account sign-ups at a competitor's (of the advertiser) website and find that most people sign-up the day they saw an advertisement, but that the true "competitive effect" was minimal. In Experiment 2, users that are exposed to an ad on a given day are much more likely to engage in brand-relevant search queries as compared to their recent history for reasons that had nothing do with the advertisement. In Experiment 3, we show that activity bias occurs for page views across diverse websites. In all three experiments, exposure to a campaign signals doing "more of everything" in given period of time, making it difficult to find a suitable "matched control" using prior behavior. In such cases, the "match" is fundamentally different from the exposed group, and we show how and why observational methods lead to a massive overestimate of adfx in such circumstances.
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March 25,
2011
3:00 PM - 4:30 PM (Friday)
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Vikramaditya Khanna
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University of Michigan
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CEO POWER AND CORPORATE WRONGDOING |
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Abstract:
Using a sample of firms accused of corporate wrongdoing between 1996 and 2006, we find that CEO structural ower is positively related to the ikelihood of committing wrongdoing and egatively related to the likelihood of etection. CEO power is measured by the abnormal fraction of top executives hired or promoted during the incumbent CEO’s tenure. This measure is positively related to the number of executives
charged in litigation, suggesting that some wrongdoing requires team work and CEO power facilitates it. In industries where the wrongdoing involves teamwork and coordinated action (e.g., banking and securities fraud), the positive relation with
wrongdoing and the negative relation with detection are particularly strong. These results cannot be explained by excessive incentive compensation and are robust to alternate specifications of CEO power. CEO power is not always bad news, however. In some sectors, CEO power appears to reduce the incidence of wrongdoing and increase the likelihood of its detection. The evidence suggests that regulators, investors, and auditors should pay close attention to CEO power and the industry type in assessing the likelihood of wrongdoing and its detection.
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March 17,
2011
3:00 PM - 4:30 PM (Thursday)
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Hemant K. Bhargava
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University of California Davis
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Product Bundling in a Vertical Distribution Channel |
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Abstract:
Many industries feature a vertical distribution channel structure in which a downstream
player (retailer) sells a bundle, composed of products from multiple upstream producers
(manufacturers). For example, cable or satellite TV carriers bundle dozens of channels from
multiple studios and programming networks. The bundling literature oers deep insights
about the economic benets of bundling, but is limited to a direct manufacturer-buyer set-
ting. Conversely, marketing and supply chain studies on channel management have not con-
sidered the possibility of product bundling by the retailer. How do the economic incentives of
the manufacturers and retailers in a vertical channel impact the mechanics of bundling? We
develop a unique two-stage model to capture the competitive dynamics between the upstream
manufacturers and the downstream retailer, which combines the horizontal competition be-
tween manufacturers with the strategic choice of selling mechanism (bundle or components)
by the retailer. We show that bundling need not emerge as an equilibrium outcome in a
vertical channel, even under conditions ripe for its prevalence in a direct manufacturer-buyer
market. If the retailer were forced to bundle, the manufacturers exploit this restriction and
over-price their components, leading to substantial economic losses especially to the retailer.
The retailer's threat to unbundle the products does not negate these losses, rather it veers
the system to a component-selling equilibrium. Despite this failure of a bundling equilib-
rium, bundling has the Pareto-improving property of raising the surplus of all rms and the
collective consumer surplus. Bundling outcomes may, therefore, yet emerge due to alterna-
tive industry dynamics. However, these outcomes will be subject to constant pressure due to
individual rms' self-interest and desire to grab a greater share of the gains from bundling,
as indeed is frequently witnessed in the form of \carriage disputes" within the TV industry.
Other mechanisms must therefore be sought that lead to bundling as a natural competitive
outcome.
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March 16,
2011
4:00 PM - 5:30 PM (Wednesday)
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Punit Arora
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Martin J. Whitman School of Management, Syracuse University
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Corporate Governance and Corporate Social Responsibility (CSR): The Moderating Roles of Attainment Discrepancy and Organization Slack |
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Abstract:
Is the relationship between corporate governance mechanisms and corporate social responsibility
(CSR) contingent on satisfaction with firm performance?
Research Findings/Insights: Our results suggest that while effective corporate governance discourages both positive
(proactive stakeholder relationship management) and negative (violation of regulations and standards) CSR, higher slack
and positive attainment discrepancy lead to higher positive and lower negative CSR, respectively. More significantly, we
find that the association between effective corporate governance and both positive and negative CSR depends on satisfaction
with firm performance as indicated by the levels of slack and attainment discrepancy. Put simply, the impact of corporate
governance on positive CSR is more pronounced under low slack/negative attainment discrepancy conditions, and that on
negative CSR is more pronounced under high slack/positive attainment discrepancy conditions.
Theoretical/Academic Implications: Our study provides robust support for the behavioral theory of the firm. Previous
research has not adequately considered the role of satisfaction with firm performance in studying the impact of corporate
governance on managerial decision-making. We show that the association between corporate governance and CSR dimensions
depends on differences in decision-making latitude originating from relative firm performance compared to those of
peer firms.
Practitioner/Policy Implications: First, to understand how effective corporate governance can constrain positive CSR and
more importantly reduce negative CSR. Second, to appreciate that the effectiveness of an organization’s governance
mechanisms is contingent on slack and performance and the marginal returns from improving governance mechanisms
when things are going well may be low.
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March 15,
2011
4:00 PM - 5:30 PM (Tuesday)
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Majid Abdi
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Schulich School of Business, York University
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Internationalization And Performance : Degree, Duration and Scale of Operations |
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Abstract:
We reassess the theoretical underpinnings and associated empirical findings of the three-staged sigmoid-curve relationship between degree of internationalization (DOI) and performance. Our empirical results, based on 5542 observations of 551 US firms over the period 1979-1996, and a re-examination of the findings reported in one of the prominent studies in the literature, show that while the relationship between DOI and performance conforms to a monotonically-negative sigmoid curve, it does not support the three-stage theorization. Further examination reveals that even after incorporating enhanced scale of operation as a mediating mechanism (through which internationalization contributes to performance) and controlling for liability of newness to international business as a confounding variable, at no degree of internationalization does an internationalized firm outperform the domestic counterpart. We debate the conceptualization of enhanced profitability as the primary motivation underlying firm international diversification
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March 4,
2011
11:00 AM - 12:30 PM (Friday)
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HARIOM MANCHIRAJU
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State University of New York – Buffalo
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Fair Value Gains and Losses in Derivatives and CEO Compensation |
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Abstract:
I examine the sensitivity of CEO cash compensation to fair value gains and losses in derivatives for a sample of U.S. oil and gas producers from 2007 to 2009. I provide evidence that CEO cash compensation is less sensitive to derivative gains/losses than to other earnings components. Further, CEO cash compensation is nearly three times more sensitive to derivative gains than to derivative losses, suggesting that compensation committees reward CEOs for fair value gains but shield their compensation from fair value losses. I also find that the asymmetric treatment of derivative gains/losses in CEO cash compensation decreases in the presence of strong corporate governance, specifically the presence of an accounting financial expert on the compensation or audit committee; and higher proportion of independent directors on the board
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February 23,
2011
1:30 PM - 3:00 PM (Wednesday)
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Kensuke Kubo
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Ph.D., University of California, Berkeley
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Inferring the Effects of Vertical Integration from Entry Games: An Analysis of the Generic Pharmaceutical Industry |
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Abstract:
This paper introduces a novel method for examining the effects of vertical integration. The basic idea is to estimate the parameters of a vertical entry game. The econometric model is used to measure vertical rival effects and to make inferences about the effect of vertical integration on market outcomes and market structure formation. Application of the model to the US generic pharmaceutical industry, which consists of vertical oligopolistic markets that open up sequentially, yields the following result: vertical integration has significant efficiency effects that spill over to unintegrated downstream firms. This implies that vertical integration is procompetitive from a static point of view. The parameter estimates are used to simulate the impact of a hypothetical policy that bans vertically integrated entry. The simulation result indicates that such a ban reduces the equilibrium number of downstream entrants. In other words, allowing vertically integrated entry results in a greater number of downstream entrants. Combined with the finding that vertical integration has strong efficiency effects, this suggests that the dynamic effects of vertical integration are also likely to be procompetitive for the generic drug industry.
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February 18,
2011
11:00 AM - 12:30 PM (Friday)
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Shashi Mittal
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Massachusetts Institute of Technology
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Robust Appointment Scheduling |
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Abstract:
The appointment scheduling problem arises in health care services, where two conflicting costs need to be minimized: the cost of under-utilization of high-cost installations (such as MRI scanners and operation rooms), and the cost of inconvenience to patients and the medical staff if a particular medical procedure starts late.
Traditionally, the problem has been studied as a stochastic optimization problem. We present a novel robust optimization model for the problem.
For each job, we are given its minimum and maximum possible execution times. The objective is to find an appointment schedule for which the cost in the worst case scenario is minimized. We present a simple heuristic, called the global balancing heuristic, which gives an optimal schedule when the underage costs of the jobs are non-decreasing. We also give a closed form optimal solution for the problem for this case. The advantages of our model over the traditional stochastic optimization models is that it provides more insight into the structure of the optimal solution, and it can be used even when historical data about the processing times of the jobs is not available.
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February 18,
2011
3:00 PM - 4:30 PM (Friday)
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Krishnamurthy Subramanian
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Indian School of Business
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Employment Protection Laws and Privatisation |
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Abstract:
Do employment protection laws hinder privatization? Using privatization deals in fourteen
European countries from 1977-2003 and within-country variation in employment protection laws, we find
that stringent employment protection laws significantly deter privatization. The fear of job cuts apparently
leads organized labor in the state-owned enterprises to vehemently oppose privatization. We find that
stringent employment protection laws inhibit privatization disproportionately more in industries that are
less productive and require lower level of job skill, consistent with the fear of retrenchment being greater
in the less-productive and low-skilled sectors. We also find that stringent employment protection laws
inhibit privatization disproportionately more in unionized industries, consistent with the fact that workers
in these industries exert considerable political pressure. To obtain these results exploiting inter-industry
differences, we use industry-level measures for the United States as an instrument to alleviate potential
endogeneity concerns. We employ panel regressions that include fixed effects to control for unobserved
factors at the country, industry and year levels. We also examine specifications including country-specific
and industry-specific trends to account for spurious correlations stemming from such trends in
privatization and in enacting employment protection laws. Our results are also robust to controlling for
endogenous changes in employment protection laws due to: (i) changes in a country’s government,
specifically its left-of-center political stance; (ii) trade liberalization; and (iii) country-level economic
growth.
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February 15,
2011
3:00 AM - 4:30 AM (Tuesday)
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Ramji Balakrishnan
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The University of Iowa
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Cost Structure and Sticky Costs |
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Abstract:
Beginning with Anderson, Banker, and Janakiraman (2003), a rapidly growing literature attributes the short-run asymmetric cost response to activity changes (i.e., sticky costs) as resulting from managerial choices. We show that fixed costs induce non-stationarity in the elasticity of Sales, General and Administrative costs, affecting the interpretation of estimates from the standard specification used in the literature. We develop suggestions for how future research might control for the effects of cost structure. Empirically, we find that cost structure confounds results usually interpreted as reflecting short-run managerial actions. Further, after adjusting for the effects of fixed costs, we find that the results are unstable across alternate sub-samples.
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February 11,
2011
3:00 PM - 4:30 PM (Friday)
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Prachi Mishra - Economist
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IMF
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THREE’S COMPANY: WALL STREET, CAPITOL HILL, AND K STREET |
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Abstract:
Does the financial industry expend money and influence to shape financial regulation and make its own rules? This paper explores the political economy factors underlying the alleged
failure of financial regulation to prevent the financial crisis of 2007-08. We construct a detailed dataset that documents the politically targeted activities of the financial sector from 1999 to 2006, which includes the bills targeted, votes by politicians in favor/against the bills,
lobbying expenditures and campaign contributions by firms that lobbied for these bills, and measures of network connections of lobbyists and firm executives with politicians.
We find that the probability of a bill advocating regulations and rules less favorable to the financial industry being passed was lower than that of a bill promoting deregulation. Furthermore, lobbying expenditures by the financial industry were directly associated with how politicians voted on the key bills that preceded the crisis. Finally, whether a lobbyist
worked for a politician and whether a politician worked in the financial industry in the past influence the vote in favor of lax regulation. These results give support to the notion that
political influence of the financial elite has influence in shaping the regulatory landscape.
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February 11,
2011
11:00 AM - 12:30 PM (Friday)
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Sripad K Devalkar
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Stephen M Ross School of Business, University of Michigan
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Dynamic Risk Management of Commodity Operations: Model and Analysis |
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Abstract:
We consider the dynamic risk management problem for a commodity processor facing uncertain commodity prices. In each period over a multi-period horizon, the firm procures an input commodity and processes it to produce an output commodity. The processed commodity is sold using forward contracts while the input itself can be traded at the end of the horizon. The firm can also trade financial derivative instruments to manage the commodity price risk. We propose a dynamic risk measure DCVaR, based on the conditional value at risk (CVaR), to model the firm's risk aversion in a time-consistent manner over the planning horizon and obtain the optimal procurement, processing and financial trading policies. We show that the optimal procurement and processing policies are characterized by price dependent inventory thresholds and conditional on optimal financial hedging decisions, the operational policies can be calculated without knowing the details of the financial hedging itself. However, these optimal thresholds are hard to compute and we develop efficient heuristics to obtain the operational and financial decisions in each period. Using numerical studies, we show that a) these heuristics are near optimal and b) optimizing a time-consistent risk measure provides a better mean-risk tradeoff for the total profits and reduces the probability of extreme losses in intermediate periods, compared to optimizing the CVaR of total profits.
Please click here for more details.
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February 4,
2011
11:00 AM - 12:30 PM (Friday)
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Vikrant Vaze
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Massachusetts Institute of Technology
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Modeling airline frequency competition for airport congestion mitigation |
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Abstract:
Demand often exceeds capacity at the congested airports. Airline frequency competition is partially responsible for the growing demand for airport resources. We propose a game-theoretic model for airline frequency competition under slot constraints. The model is solved to obtain a Nash equilibrium using a successive optimization approach, wherein individual optimizations are performed using a dynamic programming-based technique. The model predictions are validated against actual frequency data, with the results indicating a close fit to reality. We use the model to evaluate different strategic slot allocation schemes from the perspectives of the airlines and the passengers. The most significant result of this research shows that a small reduction in the total number of allocated slots translates into a substantial reduction in flight and passenger delays, and also a considerable improvement in airlines’ profits.
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January 28,
2011
3:00 PM - 4:30 PM (Friday)
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Srividya Jandhyala, Assistant Professor
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George Washington University
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Institutions sans Frontieres: International Agreements and Foreign Investment |
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Abstract:
While home and host country institutions and policies protecting property rights have long been shown to influence strategic choices of MNEs, the literature has largely ignored the proliferation of international institutions – the macro rules or principles negotiated among countries either bilaterally or multilaterally. We examine the effectiveness of agreements governing foreign investment (International Investment Agreements or IIAs), focusing on investor willingness to pay for foreign assets. This should be higher for IIA-protected investments if investors perceive IIAs as effective in providing property-rights protection. Using detailed transaction level data for sale of petroleum reserves in 52 countries, we find that investors pay significantly higher amounts for assets protected by IIAs – but only in countries with relatively low political risk. Our results contrast with those of previous researchers, who related IIAs to FDI flows, with inconclusive results.
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January 28,
2011
3:00 PM - 4:30 PM (Friday)
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Professor Ram Rao, Texas University
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Professor Ranran Ruan, University of Houston
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Manufacturer Competition and Trade Promotions in the Presence of a Strategic Retailer |
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Abstract:
We study pricing of two competing manufacturers who choose uniform wholesale prices and sell through a retailer maximizing category profits. Departing from extant work we model brand demand as continuous in retail prices, not lumpy with a mass of consumers exhibiting discontinuous switching behavior. This demand model is based a model of brand choice by heterogeneous consumers.
We find that retail pass-through depends on wholesale price difference between brands, not just a brand’s wholesale price. Moreover, the wholesale price difference must exceed a threshold determined by price sensitivity. We also show that if demand is sufficiently price sensitive, even if it is continuous in retail prices, equilibrium manufacturer pricing is in mixed strategies, which we interpret as trade promotions. This is in contrast to prior work that establishes the outcome of mixed strategies when demand is lumpy. We further show that in the absence of a strategic retailer that maximizes category profits, in our model there would be no trade promotions. Thus, we establish a connection between trade promotions and the presence of a strategic retailer. We also find that not unexpectedly, with low price sensitivity, no trade promotions occur, while under high price sensitivity, trade promotions occur with equilibrium in mixed strategies. The more interesting result is that price sensitivity affects both regular and promotion prices. Finally, competitive trade promotions in our model act as a check on raising regular prices, and so competition is about choosing regular prices, not just formulating a promotions strategy.
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January 21,
2011
11:00 AM - 12:30 PM (Friday)
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Aadhaar Chaturvedi
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Stephen M Ross School of Business, University of Michigan
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Split Award Auctions for Supplier Retention |
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Abstract:
It is common for procurement managers to frequently organise auctions among qualified suppliers to stay abreast of current supply-market pricing. The process of qualifying suppliers is expensive to the buyer; as a result, a buyer often maintains a pool of qualified suppliers, the supply base. In traditional auction models, the buyer uses the auction to ¯nd and award the business to the lowest-cost supplier in the supply base. In practice, however, sole awards can alienate losing suppliers and cause them to defect from the supply base. Therefore, to maintain the supply base | and thereby control supplier qualification costs | buyers often employ split awards. Hence, there is a trade-o® between the e®ective purchasing cost on the one hand, and the qualification cost paid to maintain the supply base on the other. We model and investigate this trade-o® and characterize (1) the optimal split award that minimizes long-run costs (purchasing and qualification) and (2) the optimal supply base size that the buyer should maintain. We also determine that higher per-supplier qualification cost leads to a smaller supply base but does not necessarily increase the extent of multi-sourcing. Finally, we show that when variability in supplier cost increases, the buyer maintains a larger supply base but does not necessarily decrease the extent of multi-sourcing.
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January 19,
2011
3:00 PM - 4:30 PM (Wednesday)
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Dr Harminder Singh
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Deakin University
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Dynamic Volume-Return Relation, Information Asymmetry, and Trade Size: An Analysis of Australian Market |
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Abstract:
This study investigates the influence of information asymmetry on the cross-sectional variation of volume-return relation in the context of Australian stock market. In particular, this paper extends current research by incorporating informed traders’ trade-size preference as well as its impact on the relation between information asymmetry and volume-return dynamics into analysis. After classifying trading volume according to the size of trade, we find that the dynamic volume-return relation within medium-size trades has the most significant response to the degree of information asymmetry. Our findings are consistent with the notion that informed traders concentrate in the trades of medium-size.
JEL classifications: G10, G20, G24
Keywords: Trade-size, Information Asymmetry, Volume, Return
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January 17,
2011
1:15 PM - 2:30 PM (Monday)
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Saras D. Sarasvathy
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Isadore Horween Research Associate Professor, University of Virginia, The Darden School
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Entrepreneurship as Method: Open Questions for an Entrepreneurial Future |
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Abstract:
In this essay, we outline the provocative argument that in the realm of human affairs there
exists an “entrepreneurial method” analogous to the scientific method spelled out by
Francis Bacon and others with regard to the natural realm. We then suggest a series of open
questions that we believe will help future scholars spell out the contents of such a method
and ways in which it can be put to work in the design and achievement of socio-economic
ends. At least one normative implication of accepting the argument would be to teach
entrepreneurship not only to entrepreneurs but to everyone, as a necessary and useful skill
and an important way of reasoning about the world.
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January 14,
2011
12:00 PM - 1:30 PM (Friday)
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Synchronizing Global Supply Chains: Advance Purchase Discounts |
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Abstract:
We study the economics of sharing demand information between a dual sourcing firm and its retailer. Our analysis demonstrates that employing Advance Purchase Discount (APD) scheme in the supply chain synchronizes the timeline of the dual sourcing firm’s decisions with that of its retailer.
This enables accurate, timely, and self-enforcing information sharing, which reduces the demand–supply mismatches, and improves the profitability of each of the agents in the supply chain. We provide prescriptions on the appropriate design of the contract that enables this Pareto-improving information sharing.
Next,we extend this analysis to incorporate realistic constraints on the dual sourcing firm’s limited knowledge of its retailer’s administrative cost and information quality. We characterize “certainty-equivalent” values of the unknown retailer parameters, which facilitate analogous prescriptions for the design of APD contracts in these realistic settings.
It is interesting that the unobservability of retailer parameters leads to an asymmetric and “degree-of-unobservability dependent” departure from the full-observability design of the APD contract. If the uncertainty in the unobserved parameter is small, then the optimal discount is higher compared to the case of full observability; conversely, when the uncertainty is large, the optimal discount is lower. It is significant that, despite the departure in the design of the APD contract, this analysis reiterates that the benefit of the APD persists even under this practical constraint.
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January 14,
2011
3:00 PM - 4:30 PM (Friday)
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V 'Seenu' Srinivasan
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Professor of Management, Graduate School of Business, Stanford University
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What if Marketers Put Customers Ahead of Profits? |
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Abstract:
We conduct a thought experiment of what would happen if a marketer were to really care about his/her customers’ welfare (not merely because the customer brings revenue.) We examine a duopoly where one of the firms does not maximize profit, but instead maximizes customer surplus subject to a profit constraint. (Customer surplus for a firm is the sum of its customers’ individual customer surpluses, i.e., the dollar value the customer attaches to the product minus its price.) For the surplus-maximizing firm, profit is constrained to be at least X percent (where X% might be, say, 80-90%) of the profit it would have obtained under a profit maximization objective. The model assumes customer willingness to pay for quality is uniformly distributed and that customers follow a simple decision rule: when presented with two products of known quality and price, purchase one unit of the product which maximizes surplus, or if surplus is negative for both products, elect not to purchase any product. We further assume that both firms have the same marginal cost of production that is convex (quadratic) in quality. Competition between firms is modeled as a two-stage game, which is solvable by backward induction. In the first stage, one of the firms, whose identity is exogenously specified, moves first and decides its quality level fully anticipating the quality response of the second firm and the subsequent price competition. The second firm observes the first firm’s quality level and then decides its own quality level, anticipating the subsequent price competition. In the second stage, firms take qualities as given and choose prices simultaneously in accordance with a Nash equilibrium. Two possibilities are considered: (a) the first mover is the profit maximizing firm, and (b) the first mover is the customer-surplus maximizing firm. We compare the results to the corresponding base case of Moorthy (Marketing Science 1988) where both firms are profit maximizing.
We find that firms can deliver significant additional value to their customers by forgoing small amounts of profit. The effectiveness of this strategy depends upon which firm is the first mover. In the case that the surplus-maximizing firm moves first, 5%-10% increases in customer surplus “cost” 6%-12% of potential profits. By contrast, when the surplus-maximizing firm moves second, we find that sacrificing 20% of profits is sufficient to more than triple the customer surplus it would have provided under a profit-maximizing objective. This is accomplished by the surplus-maximizing firm leapfrogging the first mover to become the higher quality producer.
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January 13,
2011
3:00 PM - 4:30 PM (Thursday)
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Thomas Noe
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Ernest Butten Professor of Management Studies, University of Oxford
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Incentives, reform, managers, and the restoration of corporate reputations |
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Abstract:
We model a firm whose owner benefits from its reputation for producing high quality goods. The firm's manager, however, benefits from diverting resources that are necessary to sustain high quality production for personal consumption. The owner can use compensation to incentivize the manager or reform the firm's organisational structure to constrain the manager. Under the optimal compensation scheme, the owner can ensure that the manager will choose to produce high quality goods for a limited period of time. The manager diverts resources and jeopardizes the firm's reputation for the remainder of the firm' life. Organizational structure reform, unlike incentive compensation cannot guarantee high quality production. The owner may reform the organization multiple times. In some instances she may choose to preempt the manager and reform the organization while the firm still has a reputation for high quality goods. Typically, however, unlike incentive compensation, the owner will choose to reform the organization after the firm's reputation is threatened because it has sold consumers low quality goods.
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January 10,
2011
11:00 AM - 12:30 PM (Monday)
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Raghu Pasupathy
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Virginia Tech
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Optimal Sampling Strategies for Simulation-Based Root Finding and Optimization |
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Abstract:
The Simulation Optimization Problem (SOP) is an optimization problem where the objective and
constraint function(s) are observable only using a Monte Carlo simulation. Likewise the Stochastic
Root Finding Problem (SRFP) is the Monte Carlo analogue of the problem of solving a nonlinear
system of equations. Owing to their flexibility, both of these problems have recently found enormous
expediency in a wide variety of application settings where the functions involved cannot be specified
in closed-form, but are instead expressed conveniently and implicitly using a simulation.
Sample-path methods, i.e., methods that generate an approximate deterministic problem using a
“large enough” sample size and solve it to “adequate” tolerance, are currently amongst the attractive
methods for solving SRFPs and SOPs. In this talk, we first answer the question of how to choose
sample sizes and error tolerances within sample-path methods for finding some solution to an
SRFP (or a local minimum in SOPs). We will characterize a class of error-tolerance and sample-
size sequences that are superior to others in a certain precisely defined sense. Second, and time
permitting, we will visit the question of finding all solutions to an SRFP (or a global extremum in
SOPs). Specifically, we will demonstrate that a simple relationship between the number of random
restarts and sample size should be in effect for maximum efficiency. We will provide motivating
applications and a numerical example to illustrate key results.
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Full Text
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May 26,
2009
1:15 PM - 2:30 PM (Tuesday)
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Pankaj K Jain
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Fogelman College of Business & Economics, University of Memphis
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Institutional Trading Frictions |
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Abstract:
We propose and empirically examine a comprehensive measure of institutional trading frictions to include the dimensions of price impact, quantity of execution, return dynamics, speed of execution or order splitting, and trading commissions. Our empirical analysis reveals that various hidden components of institutional trading frictions such as adverse selection and clean-up costs are persistent and could add significantly to previously measured directly observable components of transaction costs. Our simultaneous system of equations accounts for the endogeniety in institutional order aggressiveness based on potentially superior information as well as order splitting strategies in the implementation stage to reduce transaction costs. Order aggressiveness, market conditions and other stock characteristics are associated with the significant variations in trading
frictions.
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May 22,
2009
12:30 PM - 2:00 PM (Friday)
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Partha Mohanram
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Columbia Business School
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Are CEOs Compensated for Value Destroying Growth in Earnings? |
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Abstract:
Prior research has shown that firms who generate earnings growth by improving
profitability create value for shareholders, while firms who generate earnings growth through investment destroy value. This paper examines whether compensation committees take this into account while determining CEO compensation. We first confirm the results from prior research that internally generated growth is perceived by markets to add value while investment-driven
growth does not. We find that while internally generated growth is positively associated with compensation, so is investment-driven growth. There is evidence to suggest that the weight placed on investment-driven growth in earnings is higher despite such earnings growth not delivering value to shareholders. We find partial support for the hypothesis that institutional investors act as monitors to ensure that managers are compensated efficiently. The presence of
institutional ownership increases the weight on internally generated growth, but does not reduce the weight on investment-driven growth. We further show that value oriented institutional ownership increases the sensitivity of compensation growth to internally generated earnings growth and reduces the sensitivity to investment-driven earnings growth. Contrary to this, growth oriented institutional ownership increases the sensitivity of compensation growth to investment-driven earnings growth. Our results indicate the importance of understanding the different sources of earnings growth in the determination of executive compensation.
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May 19,
2009
1:15 PM - 2:30 PM (Tuesday)
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Shameen Prashantham
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Centre for Internationalisation and Enterprise Research, University of Glasgow Business School
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Exploring SMEs’ Local Links with Foreign MNCs:Exploratory Studies in Scotland and India |
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Abstract:
In this research seminar, I seek to shed some light on a relatively under-researched phenomenon viz. knowledge-intensive SMEs’ local network relationships with foreign MNCs. Prior research has not examined MNCs as a source of social capital for smaller firms. I report findings from two exploratory studies. First, a dataset of 107 Scottish software SMEs is analyzed to explore antecedents of such ties. A key finding is that alliance proactiveness is a significant predictor of whether an SME establishes links with MNCs as customers/partners rather than merely as suppliers. Second, a study of 102 Indian software SMEs examines consequences of such ties. A key finding is that social capital emanating from such ties is significantly associated with SMEs’ internationalization capability. The results of these studies improve extant understanding of SME internationalization given the tendency for academics – and perhaps even practitioners – to overlook local networks as a facilitator of international expansion. Recognition of SME-MNC links as an important locus of value creation has significant implications for public policy where efforts targeted at SME development and FDI attractions typically operate in parallel.
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May 15,
2009
12:30 PM - 2:00 PM (Friday)
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Barriers to Household Risk Management: Evidence from India |
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Abstract:
Financial engineering offers the potential to significantly reduce consumption fluctuations faced by individuals, households, and firms. Yet much of this promise remains unrealised. In this paper, we study the adoption of an innovative rainfall insurance product designed to compensate low-income Indian farmers in case of deficient rainfall during the primary monsoon season. We first document relatively low levels of adoption of this new risk management technology: only 5-10% of households purchase insurance, even though rainfall variability is overwhelmingly cited by households as the most important risk they face. We then conduct a series of randomised field experiments to test theoretical predictions of why adoption may be low. Insurance purchase is sensitive to price, with an estimated extensive price elasticity of demand between -0.66 and -0.88. Credit constraints, identified through the provision of random liquidity shocks, are a key barrier to participation, a result also consistent with household self-reports. Several experiments find an important role for trust in insurance participation. We find mixed evidence that subtle psychological manipulations affect purchase, and no evidence that modest amounts of financial education changes participation decisions. Based on our experimental results, we suggest preliminary lessons for improving the design of household risk management contracts.
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May 12,
2009
1:15 PM - 2:30 PM (Tuesday)
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Gautam Kasthurirangan
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Deloitte & Touche LLP
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Small Firm-Large Firm Alliance Dynamics: The story of David and Goliath Retold |
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Abstract:
The research study investigates the conditions under which alliances with large firm create value for the small firm. Using a resource dependency perspective, it is hypothesized that high power differences between the alliance partners may create instabilities in the alliance, negatively affecting the value which the small firm may gain from the alliance operations. On the other hand, it is argued the degree of mutual interdependence between the partners fosters an atmosphere of cohesion, trust and information exchange positively affecting the value which the small firm may gain from their alliance operations. Data is tested on 142 small firm-large firm alliances in the biotechnology industry. The results suggest that high power differences between the alliance partners negatively affect the value which the small firm may gain from the alliance operations. The results also suggest that small firms were able to overcome the problem of their power handicap when they established repeat alliances and when firms established coalitions or multi-partner alliances. Finally, the study offers implications to small firm managers to be extremely cautious and prudent when they establish alliances with larger firms.
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May 5,
2009
1:15 PM - 2:30 PM (Tuesday)
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Sundar Bharadwaj
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Goizueta Business School, Emory University
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Linking Customer Attitudinal and Behavioral Metrics to Financial Outcomes: A Latent Growth Mixture Model Approach |
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Abstract:
Marketing expenditures are often treated as short term costs rather than long-term investments. This is especially true when marketing managers are faced with the trade-offs of competing marketing strategies such as focusing on customer satisfaction or brand value. Previous research linking customer attitudinal and behavioral metrics to financial outcomes is characterized by analyzing single linkages of the ‘customer value chain’. This narrow focus leads to lack of causal evidence, inconclusive results and incorrect priorities for marketing managers.
The purpose of this study is to provide valid results linking attribute performance perceptions and behavioral intentions to behavioral and financial outcomes. Survey data as well as longitudinal transaction data for 736 customers were matched. In this study, a recently developed technique called, latent growth mixture modeling was used to analyze the proposed chain of effects and to test for customer heterogeneity. Not only did the findings support the conceptual framework, but the results showed an 80:20 split in the growth curve of customer profitability (low/high). Subsequent analyses yielded a significant higher effect of brand attachment on customer lifetime value than satisfaction and a weak positive multiplicative effect of both constructs on the slope of the customer profitability trajectory.
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April 28,
2009
1:15 PM - 2:30 PM (Tuesday)
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Vijaya B Marisetty
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Monash University
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Emerging Economies, Institutional Voids, and the Role of Busy Boards in Firm Performance |
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Abstract:
In this paper we extend the literature on multiple directorships by investigating the relationship between busy outside directors and firm performance for the top 500 Indian firms during the period of 2003-2006. We study the Indian corporate market since reputational capital (the argument that multiple board appointments signal director quality) is more important in emerging markets, such as India, where there are significant institutional voids. The presence of such institutional voids precludes a simple extrapolation of findings reported within a developed market such as the US to be applicable to emerging markets. We find busy boards are positively associated with firm performance. We strengthen our conjecture regarding the reputational capital of busy directors by showing that directors’ qualifications and their age determine their busyness. We also find that standalone firms needing more reputational capital tend to have a significantly greater number of busy directors. These findings confirm the notion that busy directors add significant value to corporations in emerging economies even if they do not add value in developed markets.
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April 9,
2009
1:15 PM - 2:30 PM (Thursday)
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Anirban Dutta
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Department of Mathematics, Western Michigan University
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Stable trading strategy involving options |
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Abstract:
Replicating portfolio and risk-neutral pricing has long been the dominating idea in pricing financial derivatives. Risk-neutral pricing and the accompanying trading strategy is optimised for the best performance and hence is extremely susceptible to model inaccuracies. While in ideal situation, such pricing and the accompanying trading strategy will be able to generate risk-free profit (arbitrage), it can turn out to be disastrous under even small model perturbations.In this talk we focus on a trading strategy involving a call option on an asset that will perform stably under small model inaccuracies. The strategy is a switching one between the asset, buying the call option and writing the option. Our motivation comes from safeguarding performance under the worst conditions. The stability of our strategy comes from the fact that the functions used to trigger the switches are relatively stable under model perturbations.
Given an asset we compute two critical thresholds for option premium determined by the performance of the option systems. Below the lower critical threshold, the strategy is to buy the call option. Above the upper threshold, one should write the asset. And between the thresholds one should go with buying and holding the asset. Although the strategy is motivated by simple examples, it can be generalised to any profitable asset.
We implemented our strategy on S&P-500 index market data to test its performance. We performed 56 months ex-ante trend-following tests. We will present the results and some interesting observations about behavior of option premiums.
We shall also take a quick glance into the stable strategies involving several options.
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April 7,
2009
1:15 PM - 2:30 PM (Tuesday)
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Dr Amitendu Palit
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Institute of South Asian Studies, NUS, Singapore
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Differences in approaches to economic reforms between China and India |
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Abstract:
Economic reforms have resulted in China and India emerging as the world's fastest-growing economies. Both economies have moved from inward-looking regimes to outward-oriented policies allowing greater space to market forces. However, the approaches to economic reforms have been markedly different between the two economies. These differences are noticeable in the pattern and sequencing of reforms in both product and factor markets. The seminar focusses on the reasons leading to such differences in terms of economic and non-economic factors. It also studies the challenges facing both economies and the core objectives of future reforms.
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March 24,
2009
1:15 PM - 2:30 PM (Tuesday)
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Pradeep K Yadav
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Michael F Price College of Business, University of Oklahoma
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Naked Short Sellers: Angels or Barbarians? |
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Abstract:
Regulatory and media concern has recently focussed heavily on the potentially manipulative distortion of market prices associated with naked short selling. While manipulation through the creation of a spurious phantom supply of stock is plausible, naked short selling can also have beneficial effects for pricing efficiency and for liquidity. We empirically investigate, for the first time, the impact of naked short selling on pricing efficiency, liquidity and other measures of market quality. We find that, while naked short selling involves a significant proportion of securities, phantom shares amount to less than 0.1% of shares outstanding for NYSE-listed securities. Focussing on a randomly selected sample of 300 NYSE securities during the first semester of 2007, we find that a one percentage point increase in the incidence of naked shorting
has lead to an approximately 4% reduction in the standard error of stock price returns, a 1% reduction in bid-ask spreads, a 50% decline in order imbalances, a 3.5% decline in absolute pricing error and a 30% decline in positive pricing errors. We find that results hold even under adverse market conditions by replicating the study with a 2008 sample. We also examine naked short selling surrounding the demise of Bear Stearns, and find that naked short sellers, while active in trading the stock of the firm, were responding to public domain information about the firm rather than triggering the observed precipitous price decline. Overall, the negative regulatory and media concern about naked short selling is not supported by our empirical evidence.
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March 23,
2009
8:00 AM - 9:30 AM (Monday)
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Anup Menon Nandialath
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Fisher College of Business, The Ohio State University
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Is Strategic Interaction important in Models of Entry? Implications for Sustainability of Competitive Advantage |
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Abstract:
Studies of competitive entry into new businesses, technological or international domains are common in strategic management research. This research has provided important results on the implications of market structure and heterogeneous resources for entry decisions.
But most such empirical studies are not modeled to accommodate strategic interaction and, therefore, implicitly assume sustainability of competitive advantage upon entry. This is un-
fortunate since this setting also oers a fertile ground for the debate on sustainable vs temporary competitive advantage. Firm advantages could be temporary on account of strategic interaction between entrants and incumbents as in a hypercompetitive environment. Previous research has been constrained by traditional empirical approaches which do not easily permit the analysis of such strategic interactions. In this paper we propose a new empirical methodology to analyse entry decisions that allows the analysis of strategic interactions while also taking into account resource heterogeneity among rms. Following the derivation
of this empirical model, we use simulated data to illustrate our results. We contrast the use of our suggested approach with that used in previous research under different conditions of sustainable or temporary advantages. It is shown that in conditions where rivals react to outmaneuver entrants, traditional empirical approaches provide biased results. Future studies can use our empirical model to answer fundamental questions about sustainability of competitive advantage and firm entry in the strategic management literature.
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March 13,
2009
1:15 PM - 2:30 PM (Friday)
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Prasad Krishnamurthy
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U C Berkeley
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Financial Market Integration and Firm Growth: Evidence from U S Bank Deregulation |
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Abstract:
This paper presents new evidence for the effect of financial integration on the sen-sitivity of business growth to local credit supply. I estimate the marginal reduction in the dependence of business growth on local credit growth after an increase in market-level financial integration. To consistently identify these effects, I exploit the timing of intra and inter-state bank-branch deregulation by (1) using a difference-in-differences framework and (2) using deregulation as an instrument for measures of within-state and across-state financial integration. Analyzing a comprehensive market-level panel data set from the United States for the years 1977 to 1997, I find that intra-state deregulation results in an 80% reduction in the effect of local credit supply growth on
mid-sized establishment growth (20-99 employees) in MSA markets. The marginal
reduction in the sensitivity of firm growth to a fall in the deposit growth rate of .05 is 12% of the average firm growth rate. For inter-state deregulation in non-MSA markets, these figures are 80% and 12.5%. These effects are economically significant at the margin of business growth. The magnitude and statistical significance of these estimates are similar across difference-in-differences and IV specifications. I also find effects of similar magnitude using employment growth and payroll growth as measures of firm growth. These results suggest that an increase in financial integration lowers the volatility of growth for bank-reliant firms and that insufficient financial integration leads to allocative inefficiencies in the expansion and contraction of firms in response
to local credit supply shocks.
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March 12,
2009
1:15 PM - 2:30 PM (Thursday)
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R Ravi
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Tepper School of Business, CMU
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Sort-Cut: A Pareto Optimal and Semi-Truthful Mechanism for Multi-Unit Auctions with Budget-Constrained Bidders |
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Abstract:
We study multi-unit auctions where each bidder has a private value for each unit, and a private budget which is the total amount of money she can spend. We propose a mechanism which is semi-truthful, i.e. the only way that a bidder can possibly benefit from lying is by overstating her value (i.e., it is weakly dominant strategy for agents to state their true budget and not understating their value). We prove that some equilibrium of the proposed mechanism optimize the revenue over all pareto-optimal (allocation) mechanisms. We show that every equilibrium of the mechanism, under some natural assumptions, differs by at most the budget of one bidder from this optimum revenue. Finally, we show that a natural greedy bidding strategy in the repeated version of the mechanism converges to an equilibrium that generates optimal revenue.
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March 7,
2009
6:30 PM - 8:00 PM (Saturday)
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Raveendra Chittoor
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Indian Institute of Management, Calcutta
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Imitators to Innovators – Exploring Sources of Innovation Capabilities in Firms from Developing Economies |
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Abstract:
This study examines sources of firm-level innovation capabilities in developing economies in the post-liberalisation era characterised by institutional changes and global competition. Drawing from evolutionary economics, we develop a model incorporating the role of internationally acquired knowledge on indigenous innovation capabilities. We empirically test the hypothesised relationships on longitudinal data on 206 Indian pharmaceutical firms from 1995-2004. Our results show that while participation in global resource and product markets independently influence innovation capabilities, the relationship between resource internationalisation and innovation is partially mediated by product market internationalisation. More fine grained analysis of firms in our data set also suggests the conditioning role of a unique institutional aspect of developing economies namely business groups, on these relationships with firms’ development of innovation capabilities.
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March 7,
2009
8:30 PM - 10:00 PM (Saturday)
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Nilesh Khare
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Fisher College of Business, The Ohio State University
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Integrating Transactions Cost and Resource-Based Theories of Boundary Choices |
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Abstract:
This study examines Transaction Cost Economics (TCE) predictions between asset specificity and firms’ boundary choices. In particular, we demonstrate that value imputed to the resources in the transaction, incremental cost of hierarchy, ex-ante opportunity cost, and bilateral considerations may non-trivially influence extant TCE predictions. We reproduce the extant predictions under only subsets of necessary and sufficient conditions, and reveal implicit assumptions and limits that may be difficult to reveal by the chains of verbal logic. While considering asset specificity alone may lead to firms’ boundary choices that deviate from extant TCE predictions, integrating asset specificity with costly to copy resource perspective may result in situations where increasing asset specificity leads to non-integration.
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March 4,
2009
1:15 PM - 2:30 PM (Wednesday)
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Venkatesh Shankar
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Mays Business School, Texas A&M University
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Optimal Allocation of Marketing Efforts by Customer-Channel Segment |
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Abstract:
As firms offer their products through multiple channels such as store, the Web, and catalog or direct mail and as more consumers buy them through different channels, the allocation of marketing efforts targeted at customers across channels is becoming a critical issue for many marketers. We propose a decomposition approach and a forward-looking model for optimal allocation of marketing efforts to each customer-channel segment of a multichannel direct marketer. We first develop response models for each component of firm profit, purchase frequency, purchase quantity, product return propensity, and contribution margin. We capture purchase frequency using the extended Beta Geometric/Negative Binomial Distribution model, purchase quantity and product return propensity using the Conditional Negative Binomial Distribution model, and contribution margin using the Gamma-Gamma model. We extend prior work by including the effects of marketing and other relevant covariates on purchase frequency, purchase quantity, return propensity, and contribution margin and by using a forward-looking optimisation model. The optimal marketing effort allocation to each customer-channel segment is a function of the model parameters for that segment. We jointly estimate the models through copulas, using customer level purchase, cost, and promotional data from a large marketer of shoes and apparel accessories across multiple channels, namely, the catalog, the store, and the Web. We solve the optimisation model using simulation. The results show that consumer response to firm marketing efforts varies significantly across the customer-channel segments for the different profit components, leading to differential allocation of marketing efforts to these segments. Using a holdout sample analysis, we show that firm profits can be substantially improved by optimally reallocating marketing efforts across the different customer-channel segments. In the revised allocation, the multichannel segment exhibits the highest percentage growth in budget and profit, highlighting the high profit potential of the multichannel segment. Our model outperforms alternative models, is generalizable and can be implemented by managers through an “easy-to-use” decision support system.
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February 16,
2009
1:15 PM - 2:30 PM (Monday)
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Radhika Lunawat
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Carlson School of Management
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Disclosure as a Tool for Building Trust and Stimulating Investment |
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Abstract:
This study analyses the role of disclosure in trust settings. It examines both theoretically and experimentally how the opportunity to make voluntary disclosures enhances the building of trust and trustworthiness to facilitate institutions for exchange and investment. If there are some trustworthy managers who always disclose their private information (or there is simply a belief that there are some trustworthy managers), then a sequential equilibrium predicts that a rational manager will choose to disclose her private information in an attempt to earn a reputation for being trustworthy. However, the manager does so selectively instead of indiscriminately in order to ensure credibility associated with her choice. By allowing for such reputation building, an economy with disclosure will have higher investment as compared to one without disclosure. Disclosure allows rational agents to develop a reputation for being trustworthy types and thereby sets stage for greater investor confidence resulting in higher investment. A rational manager‟s strategic choice of selectively mimicking a trustworthy manager is corroborated by the experimental data. The experiment also introduces a screening round to identify trustworthy managers and thereby enable comparison of investment in economies with identical proportion of trustworthy agents but different disclosure institutions. The data corroborates higher investment in economies with disclosure.
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February 13,
2009
1:15 PM - 2:30 PM (Friday)
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Praveen K Kopalle
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Dartmouth College
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Identifying and Using Emergent Consumers in Developing New Products |
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Abstract:
Though marketers are well aware that typical consumers have difficulty estimating the usefulness of really new products (Hoeffler 2003), little research has focused on which consumers to use in the new product development process, particularly in developing radical innovations in the consumer goods industry. We develop a methodology to identify these “right” consumers and show that in a new product setting in two categories, they are more likely to develop new product concepts that typical consumers would find it more appealing. We argue that the right consumers possess what we call an “emergent nature,” i.e., an ability to have foresight with respect to new product ideas. Our approach involves a calibration and validation phase of scale development and construct measurement, along with six studies for concept development and market reaction that show that the product concept developed by the emergent group is found most appealing by mainstream consumers. Our conclusions are based on the results from two product categories: home delivery of goods and oral care, and provides an initial test of using emergent consumers in improving concept development. In both categories, the concept developed by the high emergent group was rated significantly higher than the concepts developed by three other concept development teams: lead users, dispositionally innovative, and average.
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February 1,
2009
9:00 AM - 10:30 AM (Sunday)
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Tarun Jain
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University of Virginia
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Where there is a Will: Fertility Behavior and Sex Bias in Large Families |
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Abstract:
Boys and girls in India experience large differences in survival and health outcomes. For example, the 2001 Census reports that the sex ratio for children under six years of age is 927 girls per thousand boys, an outcome that has been attributed to differences in parents’ behavior towards their sons and daughters. Most studies rely primarily on cultural factors or biases in economic returns to explain these differences. In this paper, I propose an explanation where bequest motives drive fertility behavior that generates sex-based differences in outcomes even when parents do not explicitly prefer boys over girls. In India’s patrilocal rural society, women do not inherit property and heads of joint families aim to retain assets within the family lineage for future generations. I hypothesize that this leads heads to bequeath more land to claimants with more sons, in turn generating a race for sons among adult brothers seeking to maximise their inheritance of agricultural land. I confirm this theoretical prediction using panel data from rural households in India. This strategic fertility behavior implies that girls have systematically more siblings compared to boys, and hence receive smaller shares of household resources, offering an explanation for sex-based differences in outcomes.
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January 31,
2009
9:00 AM - 10:30 AM (Saturday)
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Rik Sen
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New York University
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The Returns to Spring-loading |
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Abstract:
Abnormal returns following public disclosures of unscheduled grants to CEOs are positive and highly significant in the post Sarbanes Oxley period. This implies widespread springloading (awarding options ahead of good news releases), as backdating cannot affect abnormal returns after the disclosure date. Between September 2002 and March 2006, a trading strategy that buys stocks after news of unscheduled option grants to CEOs become
public earns 1.1% monthly abnormal returns, implying the market did not realize that grants were spring-loaded. After March 2006, when it was no longer possible to spring-load grants in a clandestine fashion, this practice stopped. This suggests spring-loading was a means of providing secret compensation rather than prudent pay practice.
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January 27,
2009
1:15 PM - 2:30 PM (Tuesday)
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Amrita Nain
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McGill University
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The Bright Side of Bidder Competition |
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Abstract:
Previous research shows that bidding competition drives up takeover premiums and has a negative impact on acquirer returns. In this paper, we provide evidence of a brighter side to competition. Specifically, we distinguish between acquirers competing with financial versus strategic (corporate) bidders. Though many papers examine how the presence of competition influences acquisitions, little is known about the impact of the competitor‘s identity. We find that corporate acquirers competing with financial bidders pay a larger fraction of the deal value in cash and finance a larger fraction of the deal value with debt relative to those competing with strategic bidders. Though theory suggests that cash bids deter competition, we find that the presence of a financial bidder encourages bidding competition, suggesting potential benefits to competing with financial bidders. We then investigate premiums and returns to confirm these benefits. We find that the bid premium needed to win against a financial bidder is lower than the bid premium needed to win against a corporate bidder. Firms who win targets coveted by financial bidders earn significantly higher abnormal returns than those that win targets pursued only by other corporate bidders. These results cannot be explained by observable target firm differences or acquirer abilities. Further, the results are strongest when the firm follows a bid by a financial bidder. We therefore conclude that competition with financial bidders is potentially value enhancing.
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January 20,
2009
1:15 PM - 2:30 PM (Tuesday)
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Amiya Chakrabarti
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Northeastern University, Boston
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Telecom Service Provider Portal: Revenue Sharing and Outsourcing |
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Abstract:
Online portals, where customers may purchase digital products, can be leveraged for economic advantage by telecommunication network operators. Many different business models, characterized by revenue flow and portal ownership, are possible. However, they may create different degrees of advantages to the participants: network operator, service providers, and subscribers. Assuming a price dependent demand, we study how the parties obtain economic equilibrium in price, number of services, and sales volume, with and without portal-outsourcing. Specifically, we seek to establish whether the pattern of revenue flow creates advantages for certain parties, whether the network operator should provide open access (of his customers) to the service providers, and whether he should acquire new subscribers from independent portals.
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January 16,
2009
1:15 PM - 2:30 PM (Friday)
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Karthik Muralidharan
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University of California, San Diego
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Teacher Performance Pay: Experimental Evidence from India |
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Abstract:
Performance pay for teachers is frequently suggested as a way of improving educational outcomes in schools, but the empirical evidence to date on its effectiveness is limited and mixed. We present results from a randomized evaluation of a teacher incentive program implemented across a representative sample of government-run rural primary schools in the Indian state of Andhra Pradesh. The program provided bonus payments to teachers based on the average improvement of their students' test scores in independently administered learning assessments (with a mean bonus of 3% of annual pay). At the end of two years of the program, students in incentive schools performed significantly better than those in control schools by 0.28 and 0.16 standard deviations in math and language tests respectively. They scored significantly higher on "conceptual" as well as "mechanical" components of the tests suggesting that the gains in test scores represented an actual increase in learning outcomes. Incentive schools also performed better on subjects for which there were no incentives. Group and individual incentive schools perform equally well in the first year of the program, but the individual incentive schools significantly outperform in the second year. Incentive schools performed significantly better than other randomly-chosen schools that received additional schooling inputs of a similar value.
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January 2,
2009
1:15 PM - 2:30 PM (Friday)
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Anil K Makhija
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The Ohio State University
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The Impact Of Shareholder Power On Bondholders: Evidence From Mergers And Acquisitions |
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Abstract:
Takeovers result in the transfer of bondholders’ claims from the target to the acquiring firm, providing a setting to examine the impact of shareholder power on bondholders. We find that excess returns to target bondholders at M & A announcements are positively related to the holdings of the top 5 acquirer institutional owners, a measure of shareholder power. This supports the view that stronger shareholder power, through superior monitoring of managers, can be beneficial to bondholders as well. Our findings are robust to various proxies for shareholder power, adjustments for endogeneity, controls for target shareholder power, and other controls for firm and deal characteristics that have been shown to affect bondholders’ wealth during takeovers.
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Full Text
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December 30,
2008
1:15 PM - 2:30 PM (Tuesday)
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Dr. Ravi Seethamraju
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Senior Lecturer, Faculty of Economics & Business
The University of Sydney, Australia
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Enterprise systems and Business Process Agility – A Case Study |
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Abstract:
Agility has become a key organizational capability today as businesses face an uncertain and volatile environment. Enterprise systems, a key component of IT infrastructure in a majority of orrganizations today, have delivered cost efficiencies, control and consistent execution. Using a case study approach, this research reports on the investigation of the influence of enterprise system-enabled environment on business process agility. According to study, integration, standardization, best practices and process orientation, the key characteristics of ES-enabled environment have mixed and varying effect on business process agility and that is dependent upon the extent and type of standardization and integration implemented in the organization and the nature of business processes. Tight coupling of systems, structures and processes resulting from ES implementation restricts a firm’s ability to reconfigure and deploy business processes. Study noted the positive effect of process orientation on organizational ability to identify, reconfigure and deploy business processes. The study found that the best practices embedded in an enterprise system do not have any direct influence on process agility. Recognizing that it is not after all necessary for all processes to be agile, study pointed out some of the challenges in identification, configuration and effective deployment of agile processes.
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December 16,
2008
1:15 PM - 1:30 PM (Tuesday)
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Malay K. Dey
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Associate Professor of Finance
William Paterson University, Wayne, NJ
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Order Time, Ownership, and Short Selling in Security Price Adjustment |
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Abstract:
We investigate if order time and short selling have any bearing on how prices are formed and adjusted towards full information value in a securities market with information asymmetry. We model a competitive dealership market in which informed and liquidity traders, some of whom own stocks, arrive in a probabilistic fashion to trade a single risky security for cash with a market maker. The informed traders receive a private information signal about the future value of a security. The liquidity traders may trade for liquidity or not trade at all. Derived results from the model suggest that while buy or sell reveals private information, although asymmetrically, no-trade may provide information about the signal from public information depending on ownership interest in the firm. Security prices adjust to their full information value at a faster rate when short selling constraints are low. However, the speed and the nature of adjustment of security prices depend on the level of ownership interest in the firm.
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November 25,
2008
1:15 PM - 2:30 PM (Tuesday)
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Mukesh Garg
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Monash University
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Equity Value Implications of the SEC Exchange Act Rule 13a-14: A Litigation Cost Perspective |
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Abstract:
Prior studies examine equity value effects of SEC Exchange Act Rule 13a-14
on the submission dates of sworn testimonies in August 2002. The inconclusive results from these studies suggest a review of the event dates employed and/or the interpretation of economic implications of such ruling. We employ June 12, proposal of Rule 13a-14, and June 27, ruling of certification requirement, as event dates. We investigate litigation cost
implication of proposal and ruling and focus on firms in industries that are highly exposed to class action lawsuits. Because the final ruling differed from what was previously proposed, examination of the implications of proposal on June 12, 2002, becomes crucial in evaluating the stock price effect of certification requirement. We find negative abnormal returns surrounding June 12, and positive abnormal returns surrounding June 27, for firms relieved from compliance requirement. The results are more profound for firms in high litigation risk industries.
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November 11,
2008
1:15 PM - 2:30 PM (Tuesday)
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Kumar Venkataraman
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Southern Methodist University
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Persistence In Trading Cost: An Analysis Of Institutional Equity Trades |
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Abstract:
We discover performance persistence in the equity transactions of institutional investors and their brokers over the period 1999-2005. Brokers (institutional clients) ranked as top performers based on execution quality outperform brokers (clients) ranked as bottom performers over adjacent periods. The broker and client persistence patterns are independent and cannot be explained by client investment style or soft dollar arrangements. The best brokers tend to specialize in certain industries, charge higher commissions, more often work the order, and can consistently execute trades with no price impact. The best performing clients tend to be larger, concentrate order flow with fewer brokers, and can robustly obtain negative trading costs, suggesting that their trading desks help create positive (investment) alpha through their trading strategies. We find that the worst brokers lose market share slowly and that the worst clients tend to specify low commission execution venues, suggesting they focus on explicit costs. Our findings imply that broker selection is an important dimension of an institution’s Best Execution obligation, and that persistence in execution performance is important enough to explain a significant portion of mutual fund performance persistence.
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November 4,
2008
1:15 PM - 2:30 PM (Tuesday)
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Kuldeep Shastri
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University of Pittsburgh
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A Comparison Of Penny Stock Initial Public Offerings And Reverse Mergers As Alternate Mechanisms To Going Public |
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Abstract:
This paper compares a group of firms that go public using penny stock initial public offerings (PSIPOs) to those using reverse mergers (RMs) and analyzes firm characteristics driving US firms to opt for RMs instead of PSIPOs. Since no offerings are conducted upon initiation of trading, we hypothesize that contrary to the going public literature, RMs can be highly information asymmetric firms. We analyze RMs’ characteristics prior to going public and find that they are small, still in the development stage, illiquid, they exhibit losses, high short-term obligations and low expenses as they are early in their lifecycle. They have planned stock-financed acquisitions with the intention to acquire a greater market share. Their insiders maintain a high ownership stake after going public with no intention to cash out within the first two years after going public. We find that RMs exhibit shorter duration of negotiations, are frequently PIPE-financed and manage to be upgraded to one of the main US stock exchanges. We also find that the decision to go public using an RM is made to exploit private information advantages held by insiders that manifest themselves in future cash flows.
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October 21,
2008
1:15 PM - 2:30 PM (Tuesday)
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Chung-Piaw Teo
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NUS Business School
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Liability Limit Management in Fixed Odds Numbers Game |
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Abstract:
Most game operators handle the issue of risk exposure in their fixed odds numbers game by imposing a liability limit on the sales of each number - all future bets on numbers with accumulated sales hitting the liability limit will be rejected. This raises an associated question -
how should the game operator set the liability limit in the optimal manner?
In this paper, we address the issue of liability limit management from two angles - The players can exploit the liability limit to construct betting strategies to increase their odds of making a profit in the game. Using realistic parameters in a numbers game played in Singapore, we formulate a model to construct a betting strategy with at least 90\% chances of making a profit in the game. We also exploit a curious property (observed from empirical data) on the way players select numbers in these games, and use that to develop a method for the game
operator to set the liability limit, based on total sales forecast.
Our approach builds on anecdotal evidences and empirical studies which
suggest that the players have a tendency to bet on ``small" numbers.
This can be attributed to players choosing numbers that are closely
related to events around them (e.g. birth dates, addresses etc.), and also due to cognitive biases for small numbers even when the players intend to choose the numbers at ''random". We quantify this phenomenon through its connection with the classical Benford's Law. Interestingly, the betting data on second significant digit shows more volatility which
could not be explained by the classical law. We modeled this phenomenon by introducing a modified version of Benford's law, obtained by
carefully mimicking the way players compose the numbers together in the
game.
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September 23,
2008
1:15 PM - 2:30 PM (Tuesday)
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Laveesh Bhandari
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Indicus Analytics, New Delhi
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Exclusive Growth – Inclusive Inequality |
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Abstract:
There is an emerging debate in India on impact of reforms on inequality. This paperlooks at various measures of inequality to show that inequality in India is increasing even though poverty has been falling in the 1990s and 2000s. It finds that in almost all states of India, inequality, as measured by Gini coefficients has been rising. And this is true for both urban and rural areas.
We find that states that have had greater per capita GSDP growth between 1993-94 and 2004-05 are more likely to have reduced absolute poverty levels (as defined by the Planning Commissions poverty line). Paradoxically, we also find a positive association between state-level per capita incomes and inequality as measured by Gini coeffieicnts, in
that states that have grown more tend to have increased inequality levels during the period 1993-94 and 2004-05. Last, we find some, but not a significant enough link between poverty reduction and inequality.
The paper then looks into other issues related to inequality - it finds that those at the bottom of the pyramid (whether measured on the basis of expenditure quintiles or educational characteristics) have had relatively greater income/expenditure growth than
the middle classes. However, the uppermost segments (by quintiles or by educational profile) have hadhighest growth from 93-94 to 04-05. Analysis of occupational profile reveals that inequality levels tend to be lower among the self employed than the salaried classes, and that states that have high self-employment levels tend to have low inequality levels.The qualification is that we do not attempt to look for causality in this version of the paper. That work is ongoing.
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September 17,
2008
1:15 PM - 2:30 PM (Wednesday)
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Mahmood A. Khan
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Virginia Polytechnic Institute and State University
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The Impact of McDonald’s Restaurant Franchises On Global Business Environment |
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Abstract:
The global impact of American Restaurant Franchises is evident in different parts of the world. Global markets in Pan-Pacific, European Union, Africa, Middle East, Asia, South America are all flooded with US franchises. This study examines the most notable impact of products and services provided by these franchises, using McDonald. Both beneficial and adverse impacts are systematically examined and presented. Under examination are cultural, social, economical, legal, technological, and environmental impacts. Case examples from different parts of the world are highlighted. Future impact and trends due to the growth on multinational enterprises are forecasted.Response to these impacts from various countries are comparatively assessed and outlined in this paper.
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September 2,
2008
12:30 PM - 1:30 PM (Tuesday)
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Vrinda Gupta
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Watson Wyatt Worldwide
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Sentiment Risk In Stock Markets |
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Abstract:
Sentiment in stock market should be seen as a risk, especially when we define sentiments in the noise trader model framework. In this research, sentiment risk has been measured for 22 stock markets. We distinguish between local sentiments and global sentiments and rank which stock markets are most driven by local sentiments and which are most driven by global sentiments. We find that stock markets that have been established recently (compared to others in the sample) and are shallow in nature tend to be driven by sentiments to a larger extent than others. Another hypothesis that this research has tested is – with the spread of information technology and internet trading, stock markets will become more sentiment driven over time or sentiments would be pronounced in certain growth phases than others.This research doesn’t find support for these hypotheses.
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August 29,
2008
12:30 PM - 2:00 PM (Friday)
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Reddi Kotha
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Singapore Management University
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Entry into New Niches: The Expansion of Technological Capabilities and its |
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Abstract:
The paper explains how startups and mature firms systematically differ in their innovative output when they enter “new to the firm” technological
niches. We analyze data from 128 biotechnology firms from their startup phase and track these firms over time. Our analyses reveal that the organizational age at which the firm branches into new technological niches significantly influences its innovative activity. Branching in startups enhanced both the quantity and impact of its inventions but improved only the quantity of inventions in mature firms. The implications of these findings for the literature on dynamic capabilities, innovation and entrepreneurship are discussed.
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August 27,
2008
1:15 PM - 2:30 PM (Wednesday)
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Vijay Yerramilli
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Indiana University
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How Do Defaults Affect Lead Arranger Reputation And Activity In The Loan Syndication Market? |
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Abstract:
We use borrower bankruptcy filings (loan defaults) and their impact on the subsequent lending activity of lead arrangers to investigate the role of reputation and capital constraints in the loan syndication market. Consistent with reputation effects, following loan defaults, lead arrangers syndicate loans less often and retain a larger fraction of
the loans that they do syndicate. The effects are smaller when the lead arranger is larger and when several other lead arrangers also experience loan defaults; the effects are larger for defaults of low yield loans and when defaults occur soon after loan origination. Lenders that participate in the lead arranger’s syndicates following defaults are more likely to be smaller, less diversified and to have a strong existing relationship with the lead arranger. Overall, there is a significant decline in the lead arranger’s lending activity following defaults. Our findings strongly support the notion that loan defaults
damage the lead arranger’s reputation and also lead to an erosion of its capital. The findings highlight the importance of reputation concerns in the loan syndication market,how such concerns vary in the cross-section, and the limitations of a reputation-based disciplining mechanism.
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August 19,
2008
1:15 PM - 2:30 PM (Tuesday)
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Mohan Rao
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LECG and Northwestern University
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Valuing Early Stage Technologies |
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Abstract:
I will discuss the valuation of complex intellectual property,
especially the valuation of early stage technologies. Many transactions
involving pharmaceutical and biotechnology firms occur when the underlying assets are in very early stages of development. These early stage technologies face a number of unique risks related to clinical research, the success of clinical trials, and the outcome of regulatory review, in addition to the usual risks of commercialization. A key problem in valuing these technologies is how to meaningfully risk adjust cash flows when the path to commercialization is extremely risky and is often 10+ years away. I will cover the practical challenges we face in using DCF and real options models in valuing early stage technologies.
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August 12,
2008
1:15 PM - 2:30 PM (Tuesday)
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Jagadeesh Sivadasan
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University of Michigan
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What happens When Firms patent? New Evidence From US Manufacturing Census Data |
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Abstract:
In this study, we present new evidence on the question of what happens when firms patent. We do so by creating a new dataset that links the NBER patent data to firm data from the US Census Bureau. Our linked dataset covers more than 48,000 unique assignees (compared to about 4,100 assignees covered by the Compustat-NBER link), representing almost two-thirds of all non-individual, non-university, non-government assignees from 1975 to 1997. Using this new dataset, we
examine what happens when firms patent by looking at a large sample (about 9200) of first time patentees. We find that while there are significant cross-sectional differences in size and total factor productivity between patentee firms and non-patentee firms, changes in patent-ownership status
within firms is associated with a contemporaneous and substantial increase in firm size, but little to
no change in total factor productivity. This evidence suggests that patenting is associated with firm
growth through new product innovations (firm scope) rather than through reduction in the cost of producing existing products (firm productivity). Consistent with this explanation, we find that when firms patent, there is a contemporaneous increase in the number of products that the firms produce. Estimates of (within-firm) elasticity of firm characteristics to patent stock confirm our results. Our
findings are robust to alternative measures of size and productivity, and to various sample selection
criteria.
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August 5,
2008
1:15 PM - 2:30 PM (Tuesday)
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Rajkamal Iyer
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University of Amsterdam
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Understanding Bank Runs: The Importance Of Depositor-Bank Relationships And Networks |
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Abstract:
We use a unique, new, database to examine micro depositor level data for a bank that faced a run. We use minute-by-minute depositor withdrawal data to understand the role of social networks, the effectiveness of deposit insurance, the role of relationships and other factors in influencing depositor propensity to run. We employ methods from the epidemiology literature which examine how diseases spread to estimate transmission probabilities of depositors running, and the significant underlying factors. Our results suggest that social network effects are important but are mitigated by other factors, in particular the length and depth of the bank-depositor relationship. Depositors with longer relationships, and those who have availed of loans from a bank are less likely to run during a crisis, suggesting that cross-selling acts not just as a revenue generator but also as a complementary insurance mechanism for the bank. We further find that deposit insurance is only partially effective in preventing bank runs. Finally, we find long term effects of a bank crisis in that depositors who run do not return back to the bank. Our results help understand the underlying dynamics of bank runs and hold important policy implications.
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July 29,
2008
1:15 PM - 2:30 PM (Tuesday)
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Sushanta Mallick
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University of London
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Pricing To Market In Indian Exports: The Role Of Market Heterogeneity And Product Differentiation |
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Abstract:
This paper studies the pricing to market (PTM) behaviour of Indian exporters during the economic reforms period (1992-2005). A PTM model has been estimated using panel data at the four-digit level of classification for the G3 and three emerging markets
(Brazil, China and South Africa), distinguishing also homogeneous from differentiated goods. Overall, we observe that there is clear evidence of incomplete exchange rate passthrough
(ERPT) to buyers’ currency prices. This degree of ERPT is net of changes in thelevel of protection faced by India’s exporters (import tariffs in destination markets),inflation and openness in the export destination market, a macroeconomic policy index
partly reflecting changes in exporter’s costs, the share of the exporter in the destination market and the share of the product in the exporter’s total exports. When distinguishing between G3 and emerging markets, the empirical results indicate that Indian firms do practice PTM and have some pricing power in G3 markets, but they fully pass-through
the exchange rate changes in emerging markets. On the contrary, Indian exporters seem to be taking advantage of trade liberalisation in destination markets by marginally increasing the exporter currency prices into emerging markets but not into the G3. We also find a similar impact of trade liberalisation in the case of differentiated goods.
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July 25,
2008
12:30 PM - 2:00 PM (Friday)
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Satheesh Aradhyula
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University of Arizona
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Who Listens When China Whispers: An Empirical Study Of Chinese News Effect |
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Abstract:
In this study, we investigate the impact of Chinese news on seven stock markets in US, UK, Japan, Korea, Taiwan, Hong Kong and Mainland China. Using daily returns data and news data from Reuters News Service, we provide empirical evidence that number of daily news items about China has significant positive effect on the volatility of daily returns of all seven markets. Results indicate that macroeconomic news is significant for all markets, international trade news is significant for all but Hong Kong stock exchange and Chinese political news significantly impacts markets in Taiwan, Hong Kong and Mainland China.
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July 23,
2008
1:15 PM - 2:30 PM (Wednesday)
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Lakshmanan Shivakumar
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London Business School and Indian School of Business
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Targets’ Earnings Quality And Bidders’ Takeover Decisions |
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Abstract:
This study examines how takeover decisions are influenced by the quality of information in target firms’ earnings. We find that bidders are more likely to prefer negotiations in deals involving targets with poor earnings quality. Moreover, in such deals, earnings quality and takeover premiums are negatively related, suggesting that bidders obtain valuable private information through negotiations. Also, bidders share information risk with target shareholders by paying with more equity for targets with poor earnings quality. The results are stronger for private bidders than for public bidders, suggesting that private and public bidders respond differently to information risks in takeovers.
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July 15,
2008
1:15 PM - 2:30 PM (Tuesday)
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Diwakar Gupta
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University of Minnesota
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Carrier–Forwarder Contracts In The Air Cargo Industry |
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Abstract:
Passenger airlines (carriers), who carry nearly two thirds of the worldwide airfreight, sell a significant portion of their cargo space through intermediaries called freight forwarders. Carriers also sell directly to shippers. In a typical carrier-forwarder contract, which can remain in effect anywhere from a few months to a year, a certain amount of capacity on specific recurring flights is pre-allocated (guaranteed) to the forwarder at a negotiated price per unit of capacity. Carriers often find it difficult to obtain full payment from the forwarders who typically pay freight charges only for the space actually used.
Guaranteed allocations provide an incentive to forwarders to exert a greater effort on attracting demand. However, they limit a carrier’s ability to realize the highest possible revenue from cargo capacity.
In this talk, we propose two reasons why carriers offer guaranteed allocations – information asymmetry and moral hazard. We explore the latter in detail and study two contract mechanisms that fall within the general contracting framework prevalent in the air cargo business. We show that contract flexibility afforded by guaranteed allocations allows the carrier to achieve an efficient capacity allocation to the forwarder and the direct-ship demand streams under both mechanisms. Moreover, a carrier that charges a deposit for guaranteed allocation can induce the forwarder to simultaneously choose the optimal effort-level and earn maximum profit.
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July 14,
2008
1:15 PM - 2:30 PM (Monday)
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Sumit Joshi
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George Washington University
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Uncertainty, Networks And Real Options |
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Abstract:
Two pervasive features of industries experiencing rapid technological
progress are uncertainty (with regard to the technological feasibility and marketabilility of an innovation) and networks (the dense web of research alliances and joint ventures linking firms to each other). This paper connects the two disparate phenomena using the notion of real options. It visualizes firms as nodes and the links connecting them as call options that give each pair of interlinked firms the right, but not the obligation, to sink additional resources into a project at some future
date conditional on favorable technical/market information. The
formation of networks is endogenous as firms establish links with others
by appraising their value using option pricing methods. Our model explains the following: why networks are particularly ubiquitous in industries that are subject to high uncertainty; why networks often display an interconnected “hubs and spokes” architecture; why small(or peripheral spoke) firms often sink resources into relatively higher risk higher return investment projects (and those too with only large, or hub firms); and why so many research alliances are continuously formed and dissolved. Our paper also outlines the conditions under which ex-ante symmetric firms end up ex-post forming complex asymmetric networks.
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July 11,
2008
12:00 PM - 1:15 PM (Friday)
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Sridhar Narasimhan
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Georgia Institute of Technology
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Sequential Grid Computing: Models And Computational Experiments |
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Abstract:
Through recent technical advances, multiple resources can be connected through the Internet to provide a computing grid for processing computationally intensive applications in parallel. Unfortunately, parallel processing requires additional development effort, synchronization overhead and is not always algorithmically possible. In this paper, we develop an approach termed sequential grid computing, that augments a computing grid where parallelization is not cost-effective or possible. The sequential grid infrastructure takes advantage of idle processing power, routing jobs that require lengthy processing through a sequence of processors. We present two models that solve static and dynamic versions of the sequential grid scheduling problem. In the static version, the model maximizes the chance of completion within service level agreement parameters. In the dynamic version, the static version is modified to accommodate real-time deviations from the plan. We develop solution procedures for each model. Resultant computational experiments highlight a) situations where the static and dynamic models provide improvement over scheduling the job on a single processor and b) the factors that affect the quality of solutions obtained. We also outline future research issues related to the sequential grid computing environmentdescribed here.
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July 8,
2008
4:30 PM - 6:00 PM (Tuesday)
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Jagmohan S Raju
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The Wharton School, University of Pennsylvania
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A Theory Of Combative Advertising |
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Abstract:
In mature markets with competing firms, a common role for advertising is to shift consumer preferences towards the advertiser in a tug-of-war, with no effect on category demand. In this paper, we analyze the effect of such “combative” advertising on market power. We show that, depending on the nature of consumer response, combative advertising can reduce price competition to benefit competing firms. However, it can also lead to a pro-competitive outcome
where individual firms advertise to increase own profitability, but collectively become worse off. This is because combative advertising can intensify price competition such that
an "advertising war" leads to a "price war." Similar to price competition, advertising competition can result in a prisoner’s dilemma where all competing firms make less profit even
when the effect of each firm’s advertising is to enhance consumer preferences in its favor. Given such pro-competitive effects, we further show that cost of combative advertising could be a blessing in disguise — higher unit cost of advertising resulting in lower equilibrium levels of advertising, leading to higher prices and profits. We conduct a laboratory experiment to
investigate how combative advertising by competing brands influences consumer preferences. Our experimental analysis offers strong support for our conclusions.
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July 7,
2008
12:30 PM - 2:00 PM (Monday)
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Huseyin Topaloglu
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Cornell University
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Network Revenue Management With Customer Choice Behavior |
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Abstract:
Traditional revenue management models assume that the customers arrive with the intention of purchasing a particular itinerary. If this particular itinerary is available for purchase, then the customer purchases it. Otherwise, the customer leaves the system without purchasing anything. These models still find applications in certain settings where the products are well-differentiated. However,their applicability to important revenue management settings, such as airlines and hotels, are diminishing, as the customers nowadays view a wide array of itineraries and make a choice between the itineraries that are available for purchase. In this talk, we discuss revenue management models that capture the customer choice behavior. We present models, tractable solution methods and computational insights.
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July 4,
2008
12:30 PM - 2:00 PM (Friday)
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Krishna B Kumar
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RAND , Duke Fuqua School of Business
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The Impact of Federal Funding On University R&D |
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Abstract:
In this paper, we investigate the impact of federal research funding on R&D expenditures in life sciences at U.S. universities. Since most of the federal funding in life sciences is from the NIH, this investigation can shed light on whether awards made by the NIH spur funding from non-federal (private) sources, thereby aiding the mission of NIH to encourage application of basic knowledge. We use data from NSF for federal and non-federal funding and CRISP for NIH-specific funding, and use the university-year combination as the unit of analysis. We use fixed effects instrumental variables estimation to estimate the causal effect of federal funding on non-federal funding. The methods account for the possibility of spurious correlation between federal and non-federal funding -- that is factors specific to the university (say, quality or reputation) might be positively correlated with the university receiving both more federal and non-federal funding. We use predicted NIH funding as the instrument for federal funding. To estimate predicted NIH funding, we first calculate the shares of different NIH institutes in the funding a university received in the base year of analysis – these shares will differ by the specialization of each university. We then calculate the funding universities would have received in subsequent years based on aggregate growth in the budgets of various NIH institutes if the same base-year institute share had persisted. Year-to-year budgets of different NIH institutes and therefore the predicted funding values calculated according to base-year shares are unlikely to be related to changes in other factors that drive a particular university’s activity. The predicted value of funding is therefore a useful “instrument” for the actual federal funding a university receives, and allows us to attribute causality to federal funding.Our results indicate that a dollar increase in federal funding leads to a 23 cent increase in funding from non-federal sources. In other words, increase in federal funding leads to a more than a dollar-for-dollar increase in life science R&D expenditures at universities. Our evidence also suggests that the screening process of the NIH might send a useful signal on recipient quality to private funding sources: non-research universities and those that historically have been less funded are much more likely to receive a boost in non-federal funding from federal funding.
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July 2,
2008
1:15 PM - 2:30 PM (Wednesday)
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Noshir Contractor
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Northwestern University
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From Disasters To WoW: Understanding & Enabling Networks In 21st Century Organizational Forms |
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Abstract:
Recent advances in digital technologies invite consideration of organizing as a process that is accomplished by global, flexible, adaptive, and ad hoc networks that can be created, maintained, dissolved, and reconstituted with remarkable alacrity. This presentation describes a multi-theoretical multilevel (MTML) model of the socio-technical motivations for creating, maintaining, dissolving, and reconstituting knowledge and social networks. Using examples from his research in a wide range of activities such as disaster response, Communities of Practice at Procter & Gamble, public health and massively multiplayer online games (WoW - the World of Warcraft), Contractor will present a visual-analytic framework that can be used to Discover, Diagnose, and Design our knowledge networks in 21st century organizational forms.
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June 17,
2008
1:15 PM - 2:30 PM (Tuesday)
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Sekar Raju
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Iowa State University
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The Effect Of Brand Commitment On The Evaluation Of Non-Preferred Brands: A Disconfirmation Process |
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Abstract:
This research finds that high and low commitment consumers use different information processing strategies when exposed to competitive brand information. High commitment consumers use a disconfirmatory processing strategy, focusing on the dissimilarities between their preferred brand and the competitor brand. Low commitment consumers focus on the similarities between the advertised brand and their preferred brand. These processing differences lead to differences in evaluation of a competitive brand between high and low commitment consumers. However, priming high commitment consumers to focus on the similarities between their preferred brand and a competitor brand mitigates the ill effects of disconfirmatory processing; similarly, priming low commitment consumers to focus on the dissimilarities between the advertised brand and their preferred brand results in lowered evaluations of the advertised brand.
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June 6,
2008
12:30 PM - 2:00 PM (Friday)
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Pradeep Yadav
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Oklahoma University
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Informed Trading, Information Asymmetry And Pricing Of Information Risk: |
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Abstract:
We analyze commonality in informed trading across stocks, and how informed trading varies with the structural and trading characteristics of a firm. We thereby isolate the residual level of informed trading that is unrelated to commonality, trading characteristics, and structural charac-teristics and analyze this measure with respect to its characteristics and pricing relevance. We find evidence of commonality in informed trading, and a systematic dependence of the level of informed trading on firm characteristics, such as, tick size, the existence of options, and the size of the ownership stake of outside parties. Most importantly, we find that the residual level of in-formed trading is the component of informed trading most strongly related to required returns. This indicates that an important part of the information risk premium is related to the inability to differentiate between price fluctuations that are caused by changes in fundamental value from random price moves.
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June 3,
2008
1:15 PM - 2:30 PM (Tuesday)
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Krishnamurthy Subramanian
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Emory University
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Law, Agency Costs And Project Finance |
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Abstract:
When corporations make large investments, what benefits do they derive from Project Finance vis-à-vis Corporate Debt Finance? In this paper, we provide empirical evidence that in the lender-borrower relationship, Project Finance mitigates agency costs from insider stealing. We argue that
cash flows become verifiable in Project Finance because of: (i) the contractual arrangements made possible with a single, discrete project that is legally separate from the sponsor; and (ii) private enforcement of these contracts through a network of project accounts which ensures lender control
of project cash flows.
Since Project Financing primarily involves bank debt, we compare bank loans to Project Finance companies with bank loans to regular corporations for their large investments. First, we show across forty countries that Project Finance is more likely in countries where laws protecting against insider stealing are weaker. We highlight the causal channel for this e¤ect by showing that in such countries, Project Finance is disproportionately more likely in industries with higher free cash flows.
Second, since creditors' threat to seize collateral deters borrower opportunism, we predict that stronger creditor rights mitigate the marginal e¤ect of weaker protection against insider stealing. We provide evidence for this prediction using exogenous country-level changes in creditor rights and using cross-country tests.
Our study highlights that in the lender-borrower relationship, Project Finance emerges as an organizational and contractual substitute for investor protection. Further, our study suggests that enhancing investor protection can encourage Corporate Finance by reducing the need for specialized financing vehicles such as Project Finance.
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May 29,
2008
12:30 PM - 2:00 PM (Thursday)
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John Wesley Hutchinson
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University of Pennsylvania
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An Overview Of Behavioral Research And Research Labs |
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May 27,
2008
1:15 PM - 2:30 PM (Tuesday)
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John Wesley Hutchinson
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University of Pennsylvania
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Aesthetic Self-Design: Just Do It Yourself |
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Abstract:
In two experiments, participants were asked to aesthetically self-design a product using a commercially successful online configurator (which we used as benchmark). Either one week or one month later, they were unexpectedly asked to recognize and evaluate their self-designed
product along with 29 other alternatives. These self-designed products were confirmed to be (1)
high in design heterogeneity, (2) often correctly recognized, and (3) strongly preferred (which we call the self-design effect). We identified three psychological factors (outcome accuracy,believed authorship, and process affect) that contribute to the self-design effect. We also developed a statistical model that used recognition types (hits, misses, false alarms and correct rejections) to separate the effects of the three factors. Results strongly supported the contribution of each factor to the self-design effect. Our experimental manipulations deviated from the
benchmark by including a conceptually equivalent but perceptually “degraded” paper-and-pencil configurator (in experiment 1) and a “diluted,” (two-person) team-design task (in experiment 2).Results showed that the three factors were differentially affected by these manipulations and
provided pragmatically significant insights about the robustness of online configurators.
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May 19,
2008
1:15 PM - 2:30 PM (Monday)
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Ravi Ramamurti
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Northeastern University
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Generic Strategies Of India’s Emerging Multinationals |
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Abstract:
Indian firms expanded outward in two waves, the first occurring in the 1970s and 1980s, and the second occurring after 1995, shortly after India opened up to the global economy in 1991 following economic reforms. The second wave was not only bigger in terms of the scale and speed of outward foreign direct investment (FDI), but the firms involved used a broader range of strategies. One especially interesting feature was that in the second wave 60-70% of the outward FDI went “up-market,” that is, to highly advanced countries, unlike the first wave in which almost the same proportion went “down-market,” that is, to countries less developed than India (Lall 1983). In addition, there was some evidence that in 2006 and the first half of 2007, Indian firms invested more abroad than foreign MNEs invested in India—a surprising result for a poor country, although the data underlying these claims are a bit murky (Dunning & Narula, 1996).
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May 2,
2008
12:30 PM - 2:00 PM (Friday)
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Achal Bassamboo
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Kellogg School of Management,Northwestern University
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Abstract:
Delay announcements informing customers about anticipated service delays are prevalent in service-oriented systems. Which delay announcements a service provider should use is a complex question, and its answer depends on both the dynamics of the underlying queueing system and on the customer behavior. We examine this problem of information communication by considering a model in which both the firm and the customers act strategically: the firm in choosing its delay announcement, and the customers in interpreting these announcements and in making the decision about when to join the system and when to balk. We characterize the equilibrium language that emerges between the service provider and her customers. The analysis of the emerging equilibria provides new and interesting insights into customer-firm information sharing. We show that even though the information provided to customers is non-verifiable and non-credible, it improves the profits of the firm and the expected utility of the customers. Further, the information could be as simple as “High Congestion”/“Low Congestion” announcements, or could be as detailed as the true state of the system. We also show that firms may choose to shade some of the truth by using intentional vagueness to lure customers. (Joint work with Gad Allon and Itai Gurvich).
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March 31,
2008
12:30 PM - 2:00 PM (Monday)
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Dipankar Chakravarti
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University of Colorado Boulder
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Value Construction And Bidding Behavior In Descending And Ascending Auctions |
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Abstract:
Two experiments examine how a set of motivational, cognitive and situational factors drives consumers’ value construction and bidding in auctions. A motivational antecedent, bidder goals (winning the item versus acquiring it at a price consistent with their value) is examined along with two cognitive factors: value precision (the width of a provided price range) and value salience (whether or not participants’ report an initial value for the item prior to the auction). The experiments involve a descending and an ascending auction respectively, each embedding manipulations of a situational variable (wait time at each price step). The average prices realized in the two auctions differed. Contrary to Milgrom and Weber’s (1982) seminal theoretical prediction for affiliated value auctions, bidders in the descending auction paid more relative to bidders in the ascending auction. In both auction formats, winning focus bidders bid higher than value focus bidders, but this goal effect was attenuated when values were more precise and/or salient. Wait time moderated the goal effect differently across the two auction formats. In the descending auction, a longer wait time elicited higher bids from winning focus bidders but not from value focus bidders. In the ascending auction, a longer wait time lowered bids from value focus bidders, but not from winning focus bidders. The comparative results provide insights into the behavioral underpinnings of consumer value formation and bidding in auctions and suggest implications
and future research directions.
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March 28,
2008
12:30 PM - 2:00 PM (Friday)
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Ramabhadran Thirumalai
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Indian School of Business
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Advertising for Liquidity on the New York Stock Exchange |
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March 25,
2008
1:15 PM - 2:30 PM (Tuesday)
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Raveendra Chittoor
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Indian Institute of Management Calcutta (IIM-C)
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Emerging Economy Multinationals: Role Of Inward Internationalization And Business Groups |
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Abstract:
This paper investigates the factors leading to multinationality of Indian information technology services firms, despite an institutional environment characterized by low resource munificence. The paper proposes that business group and internationalization of resource-bases serve as two unique mechanisms to overcome the internationalization barriers common to emerging economy firms. Using proprietary, longitudinal data on 63 firms from the Indian information technology services sector, we find that outward internationalization is enabled by firms accessing international financial resources and managerial resources. Further, we theorize and find support for our prediction that business groups constitute an inertial barrier and constrain emerging economy firms’ initial internationalization efforts; however, through leveraging of group resources, groups facilitate firms’ higher modes of international expansion such as multinationality.
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March 20,
2008
3:30 PM - 5:00 PM (Thursday)
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Tripat Gill
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University Of Ontario Institute Of Technology (UOIT)
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Convergence In The High-Technology Consumer Markets: Not All Brands Gain |
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Abstract:
Convergence in the electronics sector has allowed the addition of new functionalities to products (e.g.,mobile television on a Cell Phone). It is proposed that the goal congruence of the added functionality(i.e., whether it has similar / different goals as the base product) would affect the relative gain to high versus lower quality brands. While lower quality brands would gain more than high quality ones when a congruent functionality is added, high quality brands would gain more than lower quality ones for an incongruent addition. The former hypothesis was confirmed significantly and the latter directionally in two experimental studies.
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March 18,
2008
1:15 PM - 2:30 PM (Tuesday)
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Soumodip Sarkar
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University of Evora, Portugal
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Sustaining Leadership - Alice In Innovation Space |
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Abstract:
While innovation literature is rich in classifications and typology, little is offered by way of models of how innovation is connected to market outcome, which in turn would help in analyses of sustainability of innovation. The volatility at the innovator’s table suggests that an important question is not just how to innovate, but also how to sustain
this innovation In this paper, we explain the sustainability of innovation and leadership using an integrated innovation space, that connects the degree of innovation to market outcomes, which explains how constant incremental innovations enables sustenance of these market outcomes. The paper analyses the Apple iPod to illustrate how the
different versions of the iPod have sustained its market leadership. An understanding of the model and the case illustration can be valuable in analyses of product innovation, as
well as the growth of innovation from Asian countries.
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March 13,
2008
12:30 PM - 2:00 PM (Thursday)
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Venkatesh Shankar
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Texas A&M
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Do Changes in Business Model Improve Shareholder Value?: An Empirical |
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March 12,
2008
1:15 PM - 2:30 PM (Wednesday)
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Suresh P. Sethi
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The University of Texas at Dallas
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Cooperative Advertising And Pricing In A Dynamic Stochastic Supply Chain: Feedback Stackelberg Strategies |
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Abstract:
Cooperative (co-op) advertising is an important instrument for aligning manufacturer and retailer decisions in supply chains. In this, the manufacturer announces a co-op advertising policy, i.e., a participation rate that specifies the percentage of the retailer’s advertising expenditure that it will provide. In addition, it also announces the wholesale price. In response, the retailer chooses its optimal advertising and pricing policies. We model this supply chain problem as a stochastic Stackelberg differential game whose dynamics follows Sethi’s stochastic sales-advertising model. We obtain the condition when offering co-op advertising is optimal. We provide in feedback form the optimal advertising and pricing policies for the manufacturer and the retailer. We contrast the results with the advertising and price decisions of the vertically integrated channel, and suggest a method for coordinating the channel.
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March 11,
2008
1:15 PM - 2:30 PM (Tuesday)
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Mihir Rakshit
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ICRA Limited
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The Subprime Crisis:A Primer |
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Abstract:
The origins and manifestation of the crisis are to be analysed in terms of the interaction between real and financial factors, with special reference to the failure of the risk management and credit rating models.
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March 7,
2008
12:30 PM - 2:00 PM (Friday)
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Giri Kumar Tayi
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SUNY, Albany
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Digital Certificate Revocation Release Policies |
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Abstract:
Public Key Infrastructure (PKI) provides a promising foundation for
verifying the authenticity of communicating parties and transferring trust over the Internet. A key issue in PKI is how to process digital certificate revocations. In this study, we first collect real data from VeriSign and suggest a functional form for the probability density function of certificate revocation requests. We then provide an economic model based on which a certificate authority can choose the optimal Certificate Revocation List (CRL) release interval considering the intrinsic properties among different types of certificate services. We also draw some insights by comparing the performance of four different CRL strategies.
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March 5,
2008
1:15 PM - 2:30 PM (Wednesday)
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Mitrabarun Sarkar
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University of Central Florida
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Swift And Smart: The Moderating Effects Of Technological Capabilities On The Market Pioneering –Firm Survival Relationship |
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Abstract:
We extend the concept of first mover advantage to the context of high-technology industries with multiple
product generations, and propose that the notion of first mover advantage needs to be viewed not only through a
dynamic lens, but also in conjunction with technological capability. Our main finding is that first mover
advantages are contingent upon the magnitude of the firm's technological capabilities; early entry is beneficial
only for pioneers that are technically strong. However, pioneers that are low on technological capabilities suffered from poor survival rates vis-à-vis market responders or non-entrants into new product generations.
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February 29,
2008
1:15 PM - 2:30 PM (Friday)
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Nitin Bakshi
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University of Pennsylvania
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Securing The Containerized Supply Chain: An Economic Analysis Of C-TPAT |
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Abstract:
We perform an economic analysis of the Customs-Trade Partnership Against Terrorism (C-PAT), modeling the strategic interaction between the U.S. Bureau of Customs and Border Protection (CBP) and trading firms as a Principal-Agent Stackelberg game in a queueing setup. We characterize the unique equilibrium outcome and perform comparative statics. We provide insights relevant to policy planners and to private sector trading firms. We find that, for a given level of inspection capacity, implementation of C-TPAT results in greater security and a Pareto reduction in costs. The membership level increases as the environment becomes riskier but is unaffected by changes in inspection capacity. The latter result implies that the program structure should be stable, and it indicates that it may be possible to decouple inspection problems across ports. At the same time, because CBP cannot base C-TPAT agreements upon observed outcomes (terrorist incidents) the program's equilibrium does not achieve an economic First Best.
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February 22,
2008
1:15 PM - 2:30 PM (Friday)
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Vikas Mehrotra
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University of Alberta School of Business
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Adoptive Expectations: Rising Son Tournaments In Japanese Family Firms |
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Abstract:
A uniquely Japanese custom of adopting male heirs into business families allows family firms in Japan to overcome the constraint of sub-optimal succession faced by family firms elsewhere. Using a very large panel of exchange-listed firms from post-war Japan, we show that heir-managed firms perform at least as well, and in most cases better than, non-family firms in Japan. We further show that adopted heirs display superior performance compared with direct descendents, with both groups outperforming non-family firms. Keiretsu-affiliated non-family firms stack at the bottom of the group in terms of performance as well as valuation. Adopted heirs, perhaps not surprisingly, have superior educational qualifications compared with direct descendents, who in turn are better educated than founders. The average tenure of adopted heirs is 18 years in the top executive’s position, very similar to descendent heirs, and significantly longer than the tenure of professional CEOs (7 years).
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February 18,
2008
1:15 PM - 2:30 PM (Monday)
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Manpreet Hora
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The University of Western Ontario
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Inter-Firm Learning From Operational Failure |
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Abstract:
Operational failures arise when there is a difference between expected and observed outcome in terms of cost, quality, flexibility, reliability, and delivery speed. The source of these operational failures can be frequent or rare. In cases of frequent operational failures, firms are in a position to continuously learn through organizational actions and response mechanisms. In contrast, because of a low probability of occurrence and thus a very small sample, it is challenging for learning to occur from rare operational failure. In line with this organizational challenge, the study examines the association between rare operational failure and inter-firm learning. More specifically, I empirically investigate the association between types of rare operational failures, industry structure (industry concentration, industry growth, and industry dynamism), and inter-firm learning. Drawing and building on extant research, this study argues inter-firm learning will be higher for firms in industries that have low industry concentration, high industry growth, and high industry dynamism. Moreover, inter-firm learning will also be higher for firms in industries that have experienced diverse types of past operational failures than for firms in industries that have faced similar types of operational failures. Results from using fixed effects panel regression and negative binomial regression on eleven-year failure data on industry sectors in the manufacturing and the financial services division, show that inter-firm learning is higher for industries that have low industry concentration, high industry growth, and varied types of operational failure.
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February 13,
2008
6:30 PM - 8:00 PM (Wednesday)
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Ranjita M Singh
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University of Toronto
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Support Or Hindrance? Role Of Patent Owners In Influencing Adoption Of A Technical Standard |
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Abstract:
The availability of a new standard poses a dilemma for potential adopters. On the one hand they risk giving up the current tried and tested standard, even lose their current market share, and on the other hand there is danger of losing their future market share and/or their survival by not adopting the new standard. But adopting a new standard involves evaluating the terms and costs of accessing the standard. In case of new standards’ potential adopters are not sure about the commitment and motives of the players developing the standard. As the owners of a winning standard stand to gain from ensuring that the standard supported by them gains market acceptance, they may hide potential costs or problems with the standard. Potential adopters fear these hidden costs of adopting a standard, costs that they may be required to pay once the standard gains dominance in the market. It is also possible that some owners will stop contributing to the standard if they do not gain from their investment in the standard in which case the adopters will be left holding an inefficient standard. In this paper, I examine how ownership of a technical standard influences its adoption in the US cellular communications industry. In contrast to prior research I suggest that a standard’s ownership is not dichotomous (open or proprietary) but there are different degrees of openness of a standard. I suggest that a potential adopter’s decision to adopt is influenced by the patent owners’ 1) interest in the standard, 2) number of new owners, and 3) the concentration of ownership. I use patents as a proxy to examine ownership of a standard and find broad support for my hypotheses.
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February 12,
2008
1:15 PM - 2:30 PM (Tuesday)
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Muge Yayla-Kullu
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The University of North Carolina at Chapel Hill
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Product Line Design Under Capacity And Competition |
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Abstract:
In this paper, we consider a capacity constrained monopoly offering two products that differ in their quality and vary in their unit costs and capacity consumption. In particular, we
study the firm’s product line choice, capacity allocation and pricing decisions. We show that incorporating capacity limitation may dramatically change the product line decision.
In contrast to the existing literature that neglect capacity, when faced with increasing costs to quality, we show that the firm may be better off offering only one product type. Similarly,for decreasing costs to quality, while the existing literature suggests that the firm should offer only the high quality product, we show that it may be optimal for firm to offer both product types. Interestingly, acute shortage of capacity can completely change the focus and result in offering only the low quality product in this case.Among other results, we also show that capacity constraint may induce a monopolist to provide better than the socially efficient quality level to the higher end customer segment.
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February 11,
2008
6:30 PM - 8:00 PM (Monday)
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Naga Lakshmi Damaraju
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The Ohio State University
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Divestment As A Real Option: Firm Choices Under Conditions Of Uncertainty |
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Abstract:
This study shifts the focus of real options theory from investment decisions to divestment decisions. The key implications of the theory are developed and tested for business unit divestments as ‘put’ options on real assets. The results show that uncertainty in a business unit’s environment is negatively related with the decision to divest. Further, this negative relationship remains when environmental uncertainty increases and disappears when environmental uncertainty falls. Together, these results suggest that firms’ decisions to divest may be driven by option considerations when the environment of the business unit is uncertain.
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February 4,
2008
1:15 PM - 2:30 PM (Monday)
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Shamika Ravi
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Indian School of Business
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Repayment Frequency, Cash Flows And Savings: Evidence From India |
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Abstract:
This paper provides evidence that access to savings instruments directly improves access to credit. In a typical framework, households borrow, invest and then repay loan with interest. If households can save without difficulty, they should be able to follow any repayment frequency. However, in reality it is likely that income gets diverted to miscellaneous expenses. If households realize this, then it is possible that they ‘tie’ the loan repayment schedule to their income schedule or the cash flow. In this paper, I provide a simple model and empirical support to illustrate this point. The results indicate that a household which does not save is 32 percent more likely to tie the loan repayment schedule to the household cash flow and pays 3.6 percent higher interest rate for a loan.
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January 31,
2008
10:30 AM - 12:00 PM (Thursday)
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Sankalp Chaturvedi
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NUS Business School
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Leadership, Regulatory Fit And Justice For All! |
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Abstract:
Following criticism of traditional leadership research as being 'leader centric', contemporary leadership theorists are becoming increasingly sensitive to the role follower plays in explaining leadership effects on followers. In this research, I focus attention on the interactive effects of leadership behavior and follower characteristics in predicting follower appraisals of treatment fairness. Drawing upon theories of economic and social exchange that highlight the instrumental and relational aspects of social relations, I examine the effects of transactional and transformational leadership behaviors on follower appraisals of distributive and interactional justice, respectively. Further, using a regulatory-fit framework, I address moderating effects of follower regulatory-focus (promotion- and prevention-focus) on these relationships. I test the proposed theoretical multi-level model in a field setting using hierarchical linear modeling. I find that the relationship between transactional leadership and distributive justice is stronger for employees with high prevention focus. Correspondingly, the relationship between transformational leadership and interactional justice is positively moderated by employee promotion focus. These findings have important implications for researchers and practitioners alike.
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January 31,
2008
12:30 PM - 2:00 PM (Thursday)
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Jayant R Kale
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Georgia State University, Atlanta
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Debt As A Disciplining Mechanism: Evidence From The Relations Between |
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Abstract:
We investigate the disciplining role of debt in publicly-held firms by examining the relation between employee productivity and financial leverage. The unique feature of our study is that we incorporate outside employment opportunities for employees into the analysis. Consistent with the notion that the debt serves as a disciplining mechanism because agents exert additional effort to avoid the personal costs of financial distress, we find a positive concave relation between employee productivity and financial leverage; employee productivity initially increases with debt and ultimately decreases. We also find that as outside employment opportunities increas (decrease), the positive concave productivity-leverage relation becomes weaker (stronger). These relations are robust to controls for endogeneity and alternate measures of productivity. Our results suggest that employees rationally trade off the costs of leaving the firm against the expected personal costs of financial distress and the disutility of additional effort.
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January 30,
2008
1:15 PM - 2:30 PM (Wednesday)
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Santanu S Dey
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CORE, Belgium
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Using Multiple Sources Of Information Simultaneously For Solving Mixed Integer Programs |
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Abstract:
Branch-and-Cut algorithm is the cornerstone of successful Mixed Integer Programming (MIP)
solvers.Any improvement in cutting plane algorithms will significantly improve the speed of these solvers.
In this talk, we discuss techniques for generating cutting planes based on the principle: “use multiple sources of information simultaneously, rather than single sources of information
separately”. This principle is motivated by numerical studies on difficult MIP instances and by
practical problems that are often beset with myriad complicating side constraints. Two mathematical paradigms are used to implement this principle: Group cutting planes and lifting.We conclude the talk by presenting some numerical results that illustrate the computational
benefits of the proposed approach.
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January 17,
2008
12:30 PM - 2:00 PM (Thursday)
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Paul Webley
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School of Oriental and African Studies, London
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The Challenges Of Running A Social Science And Humanities University In 21st |
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Abstract:
This talk discusses the challenges involved in running a small specialist Higher Education institution. Based on the experience of running SOAS, it is evident that the challenges come from 3 inter-linked sources: government policy, the globalisation of higher education and significant changes in student expectations. The solutions to these challenges include the development of serious international partnerships and significant culture change within Universities.
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January 14,
2008
1:15 PM - 2:30 PM (Monday)
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Kaustav Sen
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Pace University
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Momentum Strategies And Sophisticated Investor Preferences In India |
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Abstract:
In this paper, we examine the existence of earnings and price momentum anomalies for a sample of actively traded stocks in the Bombay Stock Exchange during 2001-2006. We also examine the relationship between these anomalies and the level of ownership by two distinct categories of
sophisticated investors, domestic Mutual Funds (MF) and Foreign Institutional Investors (FII).
Our findings indicate that using standard time series models, there is clear evidence of a post earnings announcement drift in the Indian market. In addition, after controlling for value and size, both earnings momentum and a three month price momentum exist. The level of ownership by FIIs mitigates the effect of earnings momentum and accentuates the effect of price momentum on stock returns. In contrast, there is no impact of the level of ownership by MFs. We also find that the changes in holdings by FIIs are driven by the price momentum whereas the changes in
holdings by MFs are driven by the earnings momentum. We finally compare the performance of a MF ownership weighted portfolio with a FII ownership weighted portfolio. We find that the FII weighted portfolio has a higher beta and generates a lower beta adjusted return in comparison to the MF weighted portfolio. However, the turnover and holding patterns of the two portfolios are similar.
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January 7,
2008
1:00 PM - 2:15 PM (Monday)
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Mayeda Jamal
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Stockholm School of Economics
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A Study Of Child Welfare Policy And Practise In UK: Mapping Policy And |
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Abstract:
This study examines the potential of Advocacy Coalition Framework (ACF) in revealing the complexities of policy implementation processes at the Collective Action stage of Child Protection Policy in UK. The “model of the individual (Actors)” proposed by ACF is used as a lens for examining the action space of Social Workers, who are the key actors in policy implementation process in child protection. Results of the empirical analysis map the “reality” of the Actors that in turn reflects their belief systems. This belief system when compared to the Policy Beliefs shows severe dissonance between the two. The actors’ objectives and beliefs are grounded in Social Psychological concepts of ACF. To the contrary, the policy beliefs are embedded within control and surveillance mechanisms representative of New Public Management (NPM) agendas that are based on assumptions of opportunistic, self-serving behaviour of rational choice paradigm. The emphasis is on efficiency rather than effectiveness. The results show that the dissonance between Actors’ and Policy objectives adversely affects performance as well as the fate of the policy.
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January 3,
2008
1:15 PM - 2:30 PM (Thursday)
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Deepa Mani
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University of Texas at Austin
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Outsourcing Discount Or Paradox? A Comparative Analysis Of The Long-Term Abnormal Stock Returns And Operational Performance Gains Across Outsourcing Contracts |
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Abstract:
We assess the long-term abnormal returns to the hundred largest outsourcing initiatives implemented between 1996 and 2005, and examine whether the choice of outsourcing contract explains the cross section of abnormal returns. Relative to a size-and book-to-market matched sample of control firms in the industry, the mean three year buy-and-hold abnormal return for fixed price contracts is 16.9 percent (p<0.05) while that for variable price contracts is -21.6 percent (p<0.10). However, variable price contracts are not inherently value destroying; after controlling for the observed contextual characteristics and private firm information that influences contract choice, we find that the negative returns to variable price contracts are the outcome of a paradoxical selection process where some of the very factors that increase the likelihood of choice of variable price contracts also decrease the abnormal returns to outsourcing investments. Our findings point to the benefits of efficient contract choices, and that the market is slow to recognize the extent of such benefit. Implications for theory and the practice of outsourcing are also discussed.
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January 2,
2008
1:15 PM - 2:30 PM (Wednesday)
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Aarti Ramaswami
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Indiana University
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Gender, Mentoring And Career Success: The Importance Of Organizational Context |
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Abstract:
While mentoring is recognized as a key developmental tool in organizations, few attempts have been made to examine mentoring across cultures. Consequently, we do not know whether the hypothesized relations between mentoring and outcomes, established using Anglo/ Western samples, are generalizable to other socio-cultural settings. This dissertation compares mentoring relationships, specifically the relationship between mentor-protégé similarity and mentor behaviors, in India and the U.S. Since research indicates that mentor behaviors are positively related to protégés’ subjective and objective career outcomes, this research attempts to examine the antecedents of mentor behaviors. Considerable empirical evidence in the person-environment fit literature supports the positive relation between person-person similarity and the focal individual’s attitudinal and behavioral outcomes. Alongside, the mentoring literature suggests that mentor-protégé similarity is a key antecedent to mentoring functions. However, little research attention has been paid to simultaneously examining the differential relations between multiple types of mentor-protégé similarity and mentoring functions, let alone examining the cross-cultural boundary conditions of such relations. Drawing on the diversity and cross-cultural management literatures, this dissertation addresses these gaps by a) examining the relationship between surface-level (e.g., demographics) and deep-level (e.g., personality, values) mentor-protégé similarity and mentor behaviors, and b) examining country (India vs. U.S.) differences in the mentor-protégé similarity – mentor behaviors relationship. The results of my study will help understand what types of mentor-protégé similarities are more or less strongly associated with mentor behaviors, and whether these associations are culturally idiosyncratic. Contributions of this dissertation to mentoring research and practice, and its implications for cross-cultural employee and leadership development will be discussed.
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December 31,
2007
1:15 PM - 2:30 PM (Monday)
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Amit Nandkeolyar
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Iowa University
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How Do Teams Learn? Shared Mental Models And Transactive Memory Systems As Determinants Of Team Effectiveness |
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Abstract:
Shared mental models (SMM) and Transactive memory systems (TMS) have been advocated as the main team learning mechanisms. Despite multiple appeals for assimilation, research in both these fields has progressed in parallel and little effort has been made to integrate these theories. I propose to explore the relationship between SMM and TMS utilizing an information processing framework. I will test and contrast their impact on team processes (learning and creativity) and effectiveness outcomes (team performance, members’ satisfaction and team viability). The studies will be carried out in field settings.
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December 24,
2007
1:15 PM - 2:30 PM (Monday)
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Srinivas Bollapragada
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General Electric’s Global Research Center (GEGRC)
New York
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Sales Optimization At The National Broadcasting Company |
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Abstract:
Broadcast television networks in the United States sell about 70 to 80% of their on air advertising time for the entire broadcast year in the Upfront market, a brief two to three week period starting in the last week of May. The remaining airtime inventory is sold during the rest of the year in the Scatter market. The advertising deals are priced based on numerous factors including the mix of shows and weeks in which the clients choose to advertise, the clients’ flexibility, audience demographics, etc. We developed a number of optimization-based sales systems that NBC-Universal currently uses to maximize its revenues and improve productivity. These systems employ operations research and management science techniques to improve sales operations by removing bottlenecks caused by manual operations, helping NBC-Universal to respond quickly to client requests and enabling it to make the most profitable use of its limited inventory of valuable advertising slots. Since 1996 these systems increased revenues by over $500 million, improved sales-force productivity, reduced rework by over 80 percent and improved customer satisfaction. They have become an integral and essential part of NBC's advertising sales and commercial operations.
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December 18,
2007
1:15 PM - 2:30 PM (Tuesday)
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Veera Baladandayuthapani
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The University of Texas
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Bayesian Non-linear Methods And Its Applications |
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Abstract:
In the present day information age, a decision maker or analyst is frequently faced with dealing in
large amounts of data. Examples of such high dimensional data include stock market returns,financial time series data and complex scientific experiments. In order to make a coherent inferential decision, one needs to account for the inherent intricate and complex underlying
structure of the data in any statistical model. In this talk, I will present some novel nonlinear
statistical methods that are especially useful in modeling such high throughput data. I will
demonstrate how nonlinear/nonparametric methods are flexible enough unearth dependencies
between variables that might be missed by linear/parametric approaches. The inference is essentially Bayesian and use Markov Chain Monte Carlo (MCMC) algorithms for estimation. The
proposed methodology is illustrated via two case studies.
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December 11,
2007
1:15 PM - 2:30 PM (Tuesday)
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Ajay Subramanian
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Georgia State University
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Manager Characteristics And Capital Structure:Theory And Evidence |
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Abstract:
We investigate the effects of manager characteristics on capital structure. We first develop a dynamic structural model that incorporates managerial discretion in effort and financing, as well as agency conflicts between managers and outside investors. We derive the manager's dynamic
contract and implement it through financial securities. This leads to a dynamic capital structure
for the firm consisting of inside equity, outside equity, long-term debt and a cash reserve (or short-term debt). We calibrate the model to aggregate data and infer the key manager-specific parameters-ability, risk aversion and disutility of effort. Our theoretical analysis generates the following novel testable predictions:
-The firm's long-term debt ratio declines with the manager's ability and with her equity ownership in the firm.
-The firm's short-term debt ratio declines with the manager's ability and increases with her equity ownership.
-The long-term debt ratio increases with earnings risk and decreases with project risk.
Our empirical analysis provides significant support for the above testable implications. Broadly, our study shows that managerial discretion and manager-specific characteristics are important determinants of firms' financial policies.
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December 7,
2007
12:30 PM - 2:00 PM (Friday)
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Sundar Bharadwaj
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Emory University Atlanta
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Financial Value of Brands in Mergers and Acquisitions: Is Value in the Eye of the Beholder? |
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November 29,
2007
10:00 AM - 11:30 AM (Thursday)
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Sumit Agarwal
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Federal Reserve Bank of Chicago
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The Age Of Reason: Financial Decisions Over The Lifecycle |
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Abstract:
The sophistication of financial decisions varies with age: middle-aged adults borrow at lower interest rates and pay fewer fees compared to both younger and older adults. We document this pattern in ten financial markets. The measured effects cannot be explained by observed risk characteristics. The sophistication of financial choices peaks around age 53 in our cross-sectional data. Our results are consistent with the hypothesis that financial sophistication rises and then falls with age, although the patterns that we observe represent a mix of age effects and cohort effects.
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November 23,
2007
12:30 PM - 2:00 PM (Friday)
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J Sairamesh
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IBM Corporation, Research Division, New York
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Early Warning Systems for Businesses: How proactive feedback at the right time can limit business risk and exposure |
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Abstract:
Warranty costs annually exceed $35 billion in the United States alone and $50 billion worldwide for manufacturers in multiple industries. On an average the costs are around 2 to 3 percent of a manufacturer’s revenue, and rising. Four key factors are contributing to rising costs: increasing complexity products, lack of information sharing, increasing failures due to embedded software and electronics, and longer warranty periods. The problem is getting worse as manufacturers introduce more product models in the next few years than in the last 20—and use sophisticated components from a network of global suppliers.
In this presentation we will discuss analytical and risk-assessment methods based on early-warnings from emerging issues and leading indicators from the pre-production, production, field, warranty and service. We will present advanced industry practices on emerging issue analysis and traceability techniques in identifying precisely the defective components and affected products (e.g. vehicles) in order to help drive selective recalls, reduced risk and costs. We will discuss evidence gathering techniques to classify design or manufacturing or supplier induced failures, which can provide substantial time and cost savings in risk-mitigation processes including cost-recovery from suppliers. We will cover advanced risk criteria and supplier quality practices that can provide much needed “heads-up” to quality analysts. These practices can save new product models from early market exits and customer dissatisfaction.
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November 20,
2007
1:15 PM - 2:30 PM (Tuesday)
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Vinayak Deshpande
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Purdue University and Indian School of Business
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Secure Supply-Chain Collaborations |
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Abstract:
One of the major sources of inefficiency in supply-chains is information asymmetry;i.e.,information that is available to one or more organizations in the chain (e.g., manufacturer, retailer) is not available to others. There are several causes of information asymmetry, among them fear that a supplier-chain partner will take advantage of private information, that information will leak to a competitor, etc. We propose Secure Supply-Chain Collaboration (SSCC) protocols that enable supply-chain partners to cooperatively achieve desired system-wide goals without revealing the private information of any of the parties, even though the jointly-computed decisions require the information of all the parties. The result is a process that permits supply-chain partners to capture all of the benefits of information-sharing and collaborative decision-making, but without disclosing their ``private" signal (e.g., promotions) and cost information to one another. This work bridges three distinct research areas: Secure Multi-party Computation (SMC), Mechanism Design (MD) and Supply-Chain Management (SCM). Using three types of supply-chain interactions: Capacity Allocation; Collaborative Forecasting and Planning; and Price Masking in Outsourced Manufacturing as examples, we illustrate the challenges, research directions, and new applications of SMC to Supply-Chain Management.
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November 2,
2007
12:30 PM - 2:00 PM (Friday)
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Sankar De and Kiran Kumar
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Indian School of Business
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Hiding Bhind the Veil: Pre-trade Tansparency, Information Flows, and Market Quality (with Pradeep Yadav) |
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October 26,
2007
12:30 PM - 2:00 PM (Friday)
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NK Chidambaram
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Rutgers Business School
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Offsetting Compensation Reform: The Case of ESO Reprising (with NR Prabhala) |
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October 23,
2007
1:15 PM - 2:30 PM (Tuesday)
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Ananish Chaudhuri
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University of Auckland
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Talking Ourselves To Efficiency: Coordination In Inter-Generational Minimum Effort Games With Private, Almost Common And Common Knowledge Of Advice |
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Abstract:
Successfully coordinating the actions of multiple agents is crucial to achieving optimal outcomes in many economic phenomena. This paper experimentally investigates the use of public advice as a coordinating devise in an n-person stag-hunt game called the “Minimum Effort Game” first
studied by Van Huyck, Battalio and Beil (1990). This is a coordination game with weak strategic complementarities and Pareto-ranked equilibria, and is played by non-overlapping generations of players who, after they are done, pass on advice to their successors who take their place in the game. It was our conjecture that such an inter-generational design would enable subjects to “talk themselves to efficiency” in the sense of converging to the payoff-dominant outcome. What we
find is that it is extremely difficult to create the common knowledge necessary for coordination in such games. More precisely, if the advice offered to subjects is sufficiently exhortative in urging them to cooperate (i.e., to choose so as to coordinate on the Pareto efficient outcome),then as long as that advice is offered in a public manner (either as common knowledge or as what we call “almost common knowledge”) we can expect coordination to follow.However, if the advice quality is insufficiently strong, then coordination is likely to result only if the advice is not only public but also distributed in a manner that makes it common knowledge.
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October 19,
2007
12:30 PM - 2:00 PM (Friday)
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Vinayak Deshpande
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Krannert School of Management, Purdue University
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Are Airlines Newsvendors? Or, An Empirical Estimation of the Impact of Airline Flight Schedules on Flight Delays (with Mazhar Arikan) |
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Abstract:
Airline flight delays have come under increased scrutiny lately in the popular press,with FAA data revealing that airline on-time performance was at its worst level in 13 years in June 2007. Flight delays have been attributed to several causes such as
weather conditions, airport congestion, air-space congestion, use of smaller aircraft by airlines, etc. The goal of this paper is to examine the impact of the scheduled time
block allocated for a flight on on-time arrival performance. We combine empirical flight data published by the Bureau of Transportation Statistics (BTS), with the Newsvendor framework from the Operations literature to conduct this analysis. We obtained detailed data on each flight flown in the US in 2005 and 2006 from BTS. Other information that was collected includes aircraft type and registration information, weather information for all airports in the US, the great circle distance and
angles for each flight leg, airport congestion etc. We first fit a probability distribution for travel time (demand), where the parameters of the demand distribution depend on
variables such as distance, aircraft type, airline, origin and destination airport, airport congestion, etc. The “quantity” decision for each flight (scheduled time block) was
then combined with the demand distribution to compute the implied “z” value and its associated service level for each flight. We tested several hypotheses about airline
scheduled service levels with July 2005 domestic flight data. Our results show that airlines systematically “under-schedule” flights, i.e., the amount of time allocated for a flight (quantity) is less than the average demand expected for the flight. Our results also indicate that airlines do not maintain consistent service levels by adjusting
their schedules based on the time of the day, origin airport congestion, and destination airport congestion.
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October 9,
2007
1:15 PM - 2:30 PM (Tuesday)
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Raghunath Singh Rao
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The University of Texas at Austin
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Understanding The Role Of Trade-ins In Durable Goods Markets:Theory And Evidence |
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Abstract:
The act of trading in a used car as partial payment for a new car resonates with practically all consumers. Such transactions are prevalent in many other durable goods markets ranging from golf clubs to CT scanners. What roles do trade-ins play in these markets? What motivates the seller to set up a channel to facilitate trade-ins? Intuitively, accepting a trade-in would appear to stimulate demand for the producer’s product, but facilitating the resale of these used goods that substitute for new goods might also increase cannibalization. Although such transactions involve billions of dollars, we know little about this practice from the extant research literature. This paper develops an analytical model that incorporates key features of real-world durable goods markets; a) co-existence of new and used goods markets, b) consumer
heterogeneity with respect to quality sensitivity, c) firms who anticipate the cannibalization problem arising from the co-existence of new and used goods, and d) lemons problems in resale
markets, whereby sellers of used goods are better informed than buyers about the quality of their particular item.
In our analysis, a trade-in policy amounts to an intervention by the firm in the used good market, which reduces inefficiencies arising from the lemons problem. It motivates owners to
purchase new goods and reduces their proclivity to hold on to purchased goods because of the low price the latter would fetch in a lemons market.
We also show that trade-in programs are more valuable for less reliable products because of the more acute lemons problem. Such programs increase the average quality of used goods
offered for resale, which in turn increases used goods prices as well as the volume of transactions in the resale market. Trade-in programs are also more valuable for products that deteriorate more slowly, because the near-new quality of a used good allows it to compete more effectively for new good purchases.
We test the key predictions of the model about price and volume of trade by assembling a dataset of transactions of US automobile consumers, and find broad support for our model. In particular, we find that a consumer buying a automobile with a trade-in receives an average discount of $644 (net of the value of the traded vehicle), and that this discount is larger for more unreliable make-models ($1,217) as well as for make-models that deteriorate slower ($1,251).The volume of used good trade is larger for more reliable make-models as well as for faster
deteriorating make-models.
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October 5,
2007
12:30 PM - 2:00 PM (Friday)
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Shamika Ravi
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Indian School of Business
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September 25,
2007
1:15 PM - 2:30 PM (Tuesday)
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Ashok Som
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ESSEC Business School
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Organizational Re-design And Performance: Evidence From India |
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Abstract:
One central problem in management and organizations literature is that of designing complex organizations for superior performance through uncertainty avoidance, differentiation and integration mechanisms. This flows from the basis of understanding that complex processes within organisations can be decomposed into mechanisms.These mechanisms become more
prominent with turbulence and uncertainty in the environment wherein organizations need to emplace appropriate formal re-design mechanisms. In the backdrop of the ongoing economic liberalization in India, a multiple-respondent survey of 69 Indian organizations was undertaken. The research question was to study the impact of changes in re-design mechanisms on firm performance. This research question was intimately related to broader issues of concern to organization theory including the usefulness and value of re-design
efforts and the implications of organizational change processes. The results shows that mechanisms of uncertainty reduction,differentiation, and integration tend to enhance
corporate performance in turbulent environments, while their absence or low usage depresses it. Integration mechanisms came out to be the most critical determinant of the effectiveness of design efforts. Several implications for contingency theory and design are discussed.
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August 28,
2007
1:15 PM - 2:30 PM (Tuesday)
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Pranab Majumder
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Duke University
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Leadership And Competition In Network Supply Chains |
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Abstract:
This paper considers network supply chains with price dependent demand by modelling them as large acyclic networks. Such large networks are common in the automobile and apparel industries.We develop a model to analyze the effect of these large scale problems involving long sequences of contracts, and show that contract leadership, as well as leader position in the network affect the
performance of the entire supply chain. We generalize Spengler (1950) to a game on a “contract tree” for a particular supply chain and extend the concept of double marginalization so that it can be applied in the form of a transformation to each contract that is offered by one member to another in the “contract tree”. We construct an algorithm to find the equilibrium solution, and derive the optimal location of the leader (“optimal” being that leader location which maximizes total supply chain profits). Our work formalizes many intuitive insights; for example, member profits are determined by system-wide rather than individual costs. Finally, we model Cournot competition between competing supply chains (both two heterogeneous trees and multiple identical trees) and show the effect of changes in leader position as well as cost structure on the equilibrium.
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August 20,
2007
12:30 PM - 2:00 PM (Monday)
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Shailendra Vyakarnam
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Cambridge - Judge Business School
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'The Role of Serial Entrepreneurs as 'Incubators' - Going Beyond the Physical Definition of Incubators - The Case of Cambridge' |
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Abstract:
Most explanations for the success of high tech clusters are based on Institutional/industrial and regional economics, often ignoring the role of serial entrepreneurs and the dynamics of social capital. This seminar builds on an earlier paper to explore the redefiniation of "incubators".
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August 8,
2007
12:30 PM - 2:00 PM (Wednesday)
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Sankar De
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Indian School of Business
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August 7,
2007
1:15 PM - 2:30 PM (Tuesday)
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Ramesh Rao
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Oklahoma State University
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Earnings Management And The Cost Of Debt |
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Abstract:
This paper examines the relation between earnings management and the marginal cost of debt to the firm. The marginal cost of debt is captured by yield spreads on traded corporate debt, while earnings management is proxied by 3 alternative estimates of abnormal discretionary accruals. Using a sample of traded corporate bonds for the period 1994 to 2006, we find abnormal accruals are priced in the market. Non-investment grade bonds in particular are penalized more for abnormal accruals. The results are robust to alternative estimates of abnormal discretionary accruals and to alternative econometric methodologies. Thus, we find that creditors are able to see through managers’ attempts to opportunistically influence earnings perceptions and penalize firms for doing so by demanding a higher rate of return.
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August 2,
2007
1:15 PM - 2:30 PM (Thursday)
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Aman Ullah
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University of California
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Semiparametric Estimation Of Time Series Mean,Volatility And Correlations Models :Applications To Stock Returns |
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Abstract:
We propose a new combined semiparametric estimator, which incorporates the parametric
and nonparametric estimators of the conditional variance in a multiplicative way. We derive the
asymptotic bias, variance, and normality of the combined estimator under general conditions.We show that under correct parametric speciffication, our estimator can do as well as the parametric estimator in terms of convergence rates; whereas under parametric mis-speciffication our
estimator can still be consistent. It also improves over the nonparametric estimator of Ziegelman(2002) in terms of bias reduction. The superiority of our estimator is verfied by Monte Carlo
simulations and empirical data analysis.
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July 30,
2007
12:30 PM - 2:00 PM (Monday)
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Priya Ranjan
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University of California, Irvine
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Offshoring and Unemployment |
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July 27,
2007
12:30 PM - 2:00 PM (Friday)
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Bhagwan Chowdhry
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Anderson, UCLA
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Sex Death and Risk Aversion |
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July 20,
2007
3:00 PM - 4:30 PM (Friday)
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Gurneeta Vasudeva
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Indian School of Business
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How Does Regional Dynamism and Diversity Influence Alliance Formation and Inventor Mobility for Knowledge Flows? A Study of U.S. Fuel Cell Innovation Regions’ |
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July 19,
2007
1:15 PM - 2:30 PM (Thursday)
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Rajeev Namboothiri
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Centre for Global Logistics and Manufacturing Strategies(GLAMS)
Indian School of Business
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Planning Container Drayage Operations At Congested Seaports |
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Abstract:
This research considers daily operations management for a fleet of trucks providing container pickup and delivery service to a port. Truck congestion at access points to ports may lead to serious inefficiencies in drayage operations, and the resultant cost impact to the intermodal supply chain can be significant. Port congestion is likely to continue to be a major problem for drayage operations given the growing volume of international containerized trade. Responding to growing access congestion and its resultant impacts, many U.S. port terminals have implemented appointment systems, but little is known about the impact of such systems on drayage productivity.
This research seeks to develop optimization approaches for maximizing the productivity of drayage firms operating at congested seaports. Specifically, this research addresses two daily drayage routing and scheduling problems. In the first problem, we consider managing a fleet of trucks providing container pickup and delivery service to a port facility that experiences different access wait times depending on the time of day. In the second problem, we study methods for managing a drayage fleet serving a port with an appointment-based access control system.
We develop a drayage operations optimization approach based on a column generation integer programming heuristic. For the first problem, this approach incorporates the time-dependent congestion delay function; and for the second problem, it explicitly models a time-slot port access control system. The approach determines pickup and delivery sequences with minimum transportation cost. Finally, we use the framework to develop an understanding of the potential impact of congestion delays and access appointment systems on drayage operations. Findings demonstrate the value of planning with accurate delay information; and also indicate that drayage productivity can be quite sensitive to small changes in time-slot access capacities at the port.
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July 16,
2007
1:15 PM - 2:30 PM (Monday)
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Suman Mallik
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University of Illinois at Urbana-Champaign
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Managing On-Air Ad Inventory In Broadcast Television |
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Abstract:
Motivated by the experiences of National Broadcasting Company (NBC),we present an analytical model for managing on-air ad inventory in broadcast television. The ad inventory in this industry is priced based on rating points or the number of viewers that watch a commercial. The rating points during a broadcast year are sold through two distinct processes: the Upfront, which occurs before the broadcast season, and the Scatter, which occurs during the broadcast season. A firm needs to allocate its total rating points inventory to these two markets before knowing either the performance rating of its shows or the Scatter market price, both of which are random. The networks offer ratings (performance) guarantees on the inventory that is sold in the Upfront market while such guarantees are seldom offered in the Scatter market. We propose an optimization model for the networks to manage their rating points inventory. Our model explicitly incorporates the performance uncertainty of the television shows as well as the revenue uncertainty of the Scatter market. We derive conditions for feasibility of the problem and characterize the optimal amount of rating points to sell in the Upfront market. Our model explains the current practice of selling around 60-80% of the total rating points for the season during the Upfront market and analyzes other common strategies used by the firms. In addition to providing key managerial insights, our work introduces quantitative methodologies to television networks in planning their Upfront markets.
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July 13,
2007
1:15 PM - 2:30 PM (Friday)
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Suresh Govindaraj
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Rutgers University
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Wealth-Robust Intertemporal Incentive Contracts |
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Abstract:
We study optimal incentive contracts in a continuous time principal-agent setting with hidden actions. The agent, whose e¤ort controls the output, has a concave utility
function which is non-separable in wealth and monetary cost of effort. The principalis risk neutral and optimally selects the effort to be induced and the contract design.
Output follows a mean-reverting process with random coefficients. We characterize the class of W-robust compensation schemes that elicit a desired effort which is immune to
the principal’s mispecifications of the future wealth of the manager. We demonstrate the existence of a solution to the principal’s problem, characterize the optimal effort policy,
derive the optimal W-robust contract and show that our contract dominates randomized contracts.
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July 12,
2007
12:30 PM - 2:00 PM (Thursday)
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Sudip Gupta
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Indian School of Business
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Strategic Information Acquisition: A Framework for Structural Estimation |
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July 10,
2007
1:15 PM - 2:30 PM (Tuesday)
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Indranil Bardhan
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University of Texas at Dallas
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Optimizing An Information Technology Project Portfolio With Time-Wise Interdependcies |
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Abstract:
Although the use of real options for valuation of information technology (IT) investments has been well-documented, little research has been conducted to examine its relevance for prioritizing a portfolio of projects. When the effect of project interdependencies is considered, the complexity of optimally prioritizing even a small number of projects poses several challenges in applying real
options. We develop a new methodology suite which integrates the results of real options analysis within a
portfolio management framework. We propose a multi-period optimization model to combine the advantages of using real options analysis with the
ease of an optimization program to make objective project funding decisions. Our integrated model
helps IT managers make optimal project funding decisions. We demonstrate its advantages over traditional methods by using real world data from a utility company in the United States. The primary contributions are: (1) integration of real options analysis with portfolio optimization methods, so
projects can be prioritized across a multi-period horizon, and (2) validation of our approach by showing its superiority over traditional portfolio management models.
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July 6,
2007
1:15 PM - 2:30 PM (Friday)
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Trichy V Krishnan
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National University of Singapore
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Analyzing Contracts In B2B-Service Markets |
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Abstract:
In this paper we analyze how certain key variables affect the contracts in a B2B-Services market. We focus on contracts signed between, for example, the drilling companies that own drilling rigs and the oil companies that hire those rigs to drill in their oil fields. We develop a theoretical model that shows how various factors affect the optimal contract length. The main factors we consider include the market dynamics and uncertainty, unobserved relationship between the contracting parties, cost of forming a new relationship and contracting cost. Using the empirical evidence obtained from the offshore drilling industry we demonstrate the usefulness and applicability of our model in understanding how those critical factors affect the contracting process. The insights we derive are applicable to other B2B-Service industries such as shipping companies, real estate, airlines rentals.
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June 25,
2007
1:15 PM - 2:30 PM (Monday)
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H.Shanker Krishnan
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Indiana University
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Intentional Forgetting As A Facilitator For Recalling New Product Attributes |
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Abstract:
When market changes alter what product attributes are deemed important, consumers may intentionally try to forget old product information in an attempt to remember new product information. In Experiment 1, the authors demonstrated that intentional forgetting of this nature temporarily inhibits retrieval of old product information and leads to a benefit to memory for new product information. The results show that, after a short delay, benefits continue in the absence of costs, which is supportive of a multiple-process account of intentional forgetting. Experiment 2 extends these effects using an advertising message to stimulate forgetting. Across both experiments, results also show that brand preference is based on learning of new attribute information.
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June 22,
2007
12:30 PM - 2:00 PM (Friday)
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Conflicts and Development |
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June 15,
2007
12:30 PM - 2:00 PM (Friday)
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Ramana Sonti
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Indian School of Business
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Financial strength and product market competition: Evidence from asbestos litigation |
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May 25,
2007
12:30 PM - 2:00 PM (Friday)
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Shailendra Mehta
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Duke Corporate Education and IIMA
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Mergers, Acquisitions and Trading in a Synthetic Environment with Heterogeneous Investors |
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April 2,
2007
12:30 PM - 2:00 PM (Monday)
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Khalid Nainar
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Michael G DeGroote School of Business
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Political Economy of Globalization |
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March 30,
2007
12:30 PM - 2:00 PM (Friday)
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Shubhashis Gangopadhyay
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India Development Foundation
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Accounting Rules and Corporate Governance |
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March 28,
2007
1:15 PM - 2:30 PM (Wednesday)
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Espen Andersen
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BI Norwegian School Of Management
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Driving Business Integration: Chains, Shops And Networks |
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Abstract:
Porter's model of the Value Chain forms the basis for much thinking about strategic and operational management, but is based on manufacturing companies. Two new models of strategic value creation - the Value Shop and the Value Network - extend Porter's model in problem solving and mediating industries. In this discussion, we will explore the concept of Value Configurations, show how business integration differs in each of the three value configurations (Chains, Shops and Networks), and explore research strategies with a basis in Value Configurations.
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March 20,
2007
1:15 PM - 2:30 PM (Tuesday)
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Jonathan Schroeder
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University of Exeter, UK
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Abstract:
Brands occupy an increasingly prominent place in the managerial mind as well as the cultural landscape. Recent research has shown that brands are interpreted or read in multiple ways, prompting an important and illuminating reconsideration of how branding “works,” and shifting attention from brand producers toward consumer response to understand how brands create meaning. Cultural codes, ideological discourse, consumer’s background knowledge, and rhetorical processes have been cited as influences in branding and consumer’s relationships to advertising, brands and mass media. Consumers are seen to construct and perform identities and self-concepts, trying out new roles and creating their identity within and in collaboration with, brand culture. Largely missing from these insights, however, is an awareness of basic cultural processes that affect contemporary brands, including historical context, ethical concerns, and representational conventions. In other words, neither managers nor consumers completely control branding processes – cultural codes constrain how brands work to produce meaning. This talk reveals how branding has opened up to include cultural, sociological, and theoretical enquiry, that both complements and complicates economic and managerial analysis of brand culture
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March 15,
2007
1:15 PM - 2:30 PM (Thursday)
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Stefan Klonner
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Cornell University
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Adverse Selection In Credit Markets: Evidence From Bidding Roscas |
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Abstract:
In bidding Roscas (rotating savings and credit associations) participants contribute at regular meetings and bid to receive the collected pot. We use a natural experiment to test if riskier borrowers are willing to pay higher interest rates in these Roscas than safer borrowers are. In September 1993; the Indian government imposed a ceiling on bids (and
hence on interest rates). We compare the difference in default rates between early and late recipients of the pot before and after this policy shock. We find signifficant evidence of adverse selection. By controlling for loan terms, we show that our findings cannot be explained by moral hazard. We also find that relaxing the bid ceiling in 2002 leads to
opposite effects on default rates, exactly as predicted.
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March 9,
2007
12:30 PM - 2:00 PM (Friday)
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Milind Sohoni
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Indian School of Business
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Optimal Design of Sales Contracts Under Information Asymmetry |
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March 8,
2007
1:15 PM - 2:30 PM (Thursday)
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How Near-Misses Influence Decision Making Under Risk: A Missed Opportunity For Learning |
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Abstract:
Organizational failures are usually complex events that have a number of contributing factors, but common among many significant failures are the presence of near-misses prior to the major event. While many organizations recognize the value of learning after an obvious failure such as NASA and the Columbia tragedy in which seven astronauts perished, we argue it is harder for organizations to learn from near-misses, e.g., the foam problems on most of the previous shuttle missions. In this paper, we formalize the concept of near-misses – successes that could have been failures but for an element of luck. We hypothesize that organizations and managers fail to learn from near-misses for two reasons: first, they perceive and interpret near-misses as successes; second, labeling near-misses as successes encourages even riskier subsequent decisions. In our first study, we confirm the tendency to interpret near-misses as successes by having participants evaluate a project manager whose decisions result in either: a) mission success, b) near-miss, or c) failure. Results showed that managers received similar ratings in the near-miss and success conditions, which suggests that when problems emerge from a manager’s decisions, but disaster is averted, the manager will not be held accountable for the near-miss, even when it is clear that the favorable outcome can be attributed only to good luck. Failure to hold the manager accountable for a near-miss is a foregone learning opportunity for both the manager and the organization. In our second set of studies, we confirm that information about a near-miss leads people to choose a riskier alternative and search for less information prior to making a decision. We explore the role of Bayesian updating in processing near-miss data, but ultimately suggest that managers and organizations succumb to a sense of invincibility or control because, having survived a near-miss, they discount the probability of a negative outcome—even when their decisions have grave consequences.
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March 6,
2007
1:15 PM - 2:30 PM (Tuesday)
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Sumit M Kunnumkal
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Cornell University
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Approximate Dynamic Programming And Stochastic Approximation Methods For Revenue Management |
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Abstract:
We present new methods to make the capacity allocation decisions in
revenue management problems. In the first part of the talk, we describe an approximate dynamic programming method to compute bid-price controls.Our method is based on relaxing certain constraints in the revenue manage-
ment problem by associating Lagrange multipliers with them. We describe two relaxation ideas. Relaxing the constraints that link the different flight legs yields bid-prices that depend on the remaining leg capacities. Relaxing the capacity constraints yields bid-prices that depend on how much time is
left until departure. When compared with the so-called deterministic linear program, both relaxations produce tighter upper bounds on the optimal objective value of the network revenue management problem. Computational
experiments indicate that our methods can significantly improve upon other solution methods that are used to solve network revenue management problems in practice.
In the second part of the talk, we consider the problem of optimally allocating seats on a single flight leg to the demands from multiple fare classes that arrive over overlapping time intervals. We describe a stochastic approximation method to compute the optimal protection levels under the assumption that the demand distributions are not known and we only have access to samples from the demand distributions. The novel aspect of our method is that it works with the nonsmooth version of the problem where capacity can only be allocated in integer quantities. We show that the iterates of our algorithm converge to the globally optimal protection levels.We discuss applications to the case where demand information is censored by the seat availability and present some numerical results.
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March 1,
2007
1:15 PM - 2:30 PM (Thursday)
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Hun-Tong Tan
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Nanyang Technological University
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When Do Analysts Adjust For Biases In Management Guidance? Effects Of Guidance Track Record And Analysts’ Incentives |
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Abstract:
Prior research indicates that analysts do not adjust for the general downward bias in earnings guidance issued by management. We report the results of three experiments designed to investigate how both cognitive and incentive factors and their interaction explain this phenomenon. Our results suggest that analysts do not adjust for the general tendency for companies to issue downwardly-biased guidance, but may adjust after they learn about a firm’s specific bias pattern over time. However, the degree of adjustment depends on the interactive effects of analysts’ incentives and the consistency and magnitude of bias revealed by its guidance track record. Analysts with accuracy incentives adjust for management’s track record of downwardly-biased guidance, but those with relationship incentives do not. Furthermore, the difference in adjustment between analysts with relationship and accuracy incentives is larger when the bias track record is inconsistent than when it is consistent. Also, when guidance bias is larger (two cents versus one cent), analysts with relationship incentives partially adjust, as they appear to strike a balance between accuracy and their desire to please management. These findings have implications for investors, regulators, and the interpretation of prior research.
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February 28,
2007
1:15 PM - 2:30 PM (Wednesday)
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Gireesh Shrimali
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Stanford University
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Non-cooperative Resource Sharing By Service Providers |
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Abstract:
We look at non-cooperative resource sharing, where individually rational providers contribute resources to a common pool that is then used by all providers. The key feature of our model is that usage of a resource is not explicitly regulated by the owner of the resource. Moreover, providers care about the aggregate disutility experienced by their customers. We show that participation in the sharing arrangement is possible in the
absence of pricing and give a sufficient condition for it to occur. However, we also show that participation is not always guaranteed because of the free-riding problem, which motivates the study of pricing mechanisms.We study a two stage sequential Nash game with two providers who first set prices for executing peers' load and then choose to route their load according to the prices set and costs incurred by executing load
on their resources. We show that rational providers will always participate in this game, and that one of the providers always has no incentive to utilize the resources of the other provider and effectively acts as a resource supplier. We contrast linear and nonlinear pricing schemes. Under nonlinear pricing, the effective supplier induces socially optimal routing but extracts the entire social surplus. Under linear pricing, both providers are better off even though the outcome is inefficient. Finally, under both pricing schemes, using
common cost models that make the notion of capacity explicit, we show that the effective supplier has a
greater incentive to upgrade the capacity of its resources when it is in a resource sharing relationship.
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February 23,
2007
12:30 PM - 2:00 PM (Friday)
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Ravi Bapna
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Indian School of Business
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Designing a Social Network Based Electronic Market: Trust, Incentives and Welfare |
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February 21,
2007
1:15 PM - 2:30 PM (Wednesday)
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Arijit Mukherjee
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Bates White, LLC Washington DC
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Career Concerns And Optimal Disclosure Policy |
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Abstract:
When a worker is raided, his initial employer is often better informed about his quality
than the raiders. If the worker has career concerns and matching influence productivity, the initial
employer can strategically disclose this information to influence incentives and matching efficiency. If
the initial employer can use long-term complete contracts, perfect competition in the raider market
ensures full disclosure. In contrast, an optimal short-term contract induces full disclosure if i) worker
is risk neutral, ii) worker does not face any liquidity constraints, and iii) raider market is perfectly
competitive. By relaxing any of the above conditions, one can find situations where full disclosure
is no longer optimal.
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February 20,
2007
1:15 PM - 2:30 PM (Tuesday)
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Srinivasan Sankaraguruswamy
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National University of Singapore
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The Relationship Between The Information Content Of Trades And Frequency Of Public Information Release: Mediating Effects Of Informed And Uninformed Trading |
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Abstract:
In this paper, we empirically document that the information content of trades in firms with more frequent public information release is lower on average. We further show that both informed and uninformed traders trade more in firms with more frequent public release. However, the trading by uninformed traders is of a greater order of magnitude than the trading by informed traders. This has the effect of reducing the information content of trades in firms with more frequent public releases. Our findings highlight the important role of public information in leveling the playing field for all investors.
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February 9,
2007
12:30 PM - 2:00 PM (Friday)
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Dobopam Bhattacharya
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Dartmouth College
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Inferring Optimal Resource Allocation From Experimental Data |
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February 8,
2007
12:30 PM - 2:00 PM (Thursday)
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Jayant Kale
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Georgia State University
ISB
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Rank Order Tournaments and Incentive Alignment: The Effect on Firm Performance |
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February 6,
2007
12:30 PM - 2:00 PM (Tuesday)
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N R Prabhala
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University of Maryland at College Park
ISB
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When book-building meets IPOs |
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February 2,
2007
6:00 PM - 7:30 PM (Friday)
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Rina Ray
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Indiana University
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Directed Share Program In IPO Underwriting And Agency Problems |
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Abstract:
In this paper I analyze directed share programs (DSPs) that are associated with the underwriting contracts of initial public offerings (IPOs). A DSP reserves IPO shares for officers, directors, employees, customers and vendors. About 87% of all IPOs had such a program between January 1999 and August 2003. DSPs have been criticized in the academic literature because they may create incentives to under-price IPOs. The popular press has called it a “disturbing phenomenon”. Moreover, the NASDAQ/NYSE IPO Advisory Committee has recommended that regulatory restrictions be imposed on these programs. Contrary to this criticism, I find no evidence that the beneficiaries of these programs are expropriating wealth from non-beneficiary shareholders. Specifically, I find evidence inconsistent with larger DSPs causing more underpricing. On the other hand, expectation of higher underpricing increases the program size. Finally, revealed preference suggests that top underwriters with primarily institutional clientele lose from this underwriting contract feature.
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February 2,
2007
9:00 AM - 10:30 AM (Friday)
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Sridhar Arcot
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London School of Economics
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One Size Does Not Fit All, After All: Evidence From Corporate Governance |
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Abstract:
We identify well-governed companies by accounting for heterogeneity in their governance choices by using a unique dataset. We find that companies that depart from governance best practice because of genuine circumstances outperform all others and cannot be considered badly-governed at all. On the contrary, we find that mechanical adherence to best practice does not always lead to superior performance.We thus argue that flexibility in corporate governance regulation plays a crucial role, because companies
are not homogenous entities.
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January 30,
2007
3:30 PM - 5:00 PM (Tuesday)
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Oded Sarig
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Arison School of Business
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Hot Hands and Equilibrium |
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January 29,
2007
1:15 PM - 2:30 PM (Monday)
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Vijaya Marisetty
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Indian School of Business
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An Empirical Analysis Of Intra-group Financing Activities In The Indian Family Business Groups |
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Abstract:
We test three hypotheses to understand the rationale for the existence of intra-group
financing activities in the Indian family business groups: the expropriation hypothesis, the
co-insurance hypothesis, and the internal capital markets hypothesis. Using intra-group
financing data of around 2000 Indian family business group affiliated firms that belong to
around 300 family based business groups for the period between 2000 to 2005, we find that
borrowing (lending) is always higher (lower) in those firms where the family stake is high
(low). This questions that motive behind intra-group financing activities as it supports the
expropriation hypothesis. There is only partial evidence to support co-insurance hypothesis
and internal capital markets hypothesis. We find that profit making firms and firms that are
overinvested provide loans in the internal capital market. However, the borrowing firms are
not necessarily loss making firms or firms that are underinvested. In summary, we conclude
that internal capital markets are not efficient in the Indian family business groups.
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January 24,
2007
1:15 PM - 2:30 PM (Wednesday)
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Amit Partani
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University of Texas at Austin
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Adaptive Jackknife Estimators For Bias Reduction In Stochastic Programming |
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Abstract:
Stochastic programming facilities decision making under uncertainty, and has applications in a wide range of fields. We discuss example applications ranging from from communication-network design to pricing American-style options. Unfortunately, it is usually impractical to find optimal solutions to such stochastic programs. However, feasible candidate solutions, heuristically believed to be "good", can be obtained for certain classes of problems. In such cases, it is essential to be able to assess the quality of a solution. We estimate solution quality by forming probabilistic upper bounds on the solution's optimality gap. These confidence intervals are obtained using Monte Carlo approximations of the underlying stochastic program. However, the standard point estimate of the optimality gap contains bias due to the nature of the sampling-based approximation. We provide a method to reduce this bias, and hence provide a better, i.e., tighter, confidence interval on a candidate solution's optimality gap. Our new method requires less restrictive assumptions on the structure of the bias than previously-available estimators, and we establish desirable statistical properties of our estimators. Our estimators adapt to problem-specific properties, and we provide a family of estimators, which allows flexibility in choosing the level of aggressiveness for bias reduction. We theoretically and empirically compare our new estimator with known techniques on test problems from the literature.
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January 19,
2007
1:15 PM - 2:30 PM (Friday)
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K.R. Subramanyam
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University of Southern California
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Earnings Guidance And Managerial Myopia |
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Abstract:
We examine whether firms that frequently issue quarterly earnings guidance behave myopically, where myopic behavior is defined as sacrificing long-term growth for the purpose of meeting short-term goals (Porter [1992]). We find that dedicated guiders invest significantly less in research and development (R&D) than occasional guiders. This result is robust to controlling for other determinants of R&D investment as well as to the endogeneity between firms' guidance frequency and R&D intensity. We also find that, in comparison to occasional guiders, dedicated guiders meet or beat analyst consensus more frequently.
However, we find that dedicated guiders' long-term earnings growth rates are significantly lower than those of occasional guiders. Overall, our results are consistent with dedicated guiders engaging in myopic R&D investment behavior and meeting short-term earnings targets with possible adverse effects for long-term earnings growth.
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January 11,
2007
1:15 PM - 2:30 PM (Thursday)
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Ankur Goel
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University of Texas at Austin
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Integrating Commodity Markets In The Procurement And Distribution Policies Of A Supply Chain |
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Abstract:
In this research we seek to understand how the term structure of futures prices at a
commodities market can be used in the formulation of procurement and distribution policies of
supply chains under centralized decision making. The difference between spot and futures prices
play an important role in the determination of the actual cost of holding a commodity; the cost of
holding a unit of a traded commodity is a random variable whose values are determined by the
stochastic evolution of prices at the commodity market, and it is exogenously imposed on the
firm. The benefits derived from storing a unit of the commodity, on the other hand, are
endogenous to each firm and depend on its operational characteristics. Our research objective is
to understand how the internal operational decisions of the firm should be modified as a function
of the spot and futures prices observed in the market. We model prices with a stochastic process
that allows no risk-free arbitrage opportunities, and in this setting, we characterize optimal
procurement and distribution policies for a serial distribution system and obtain approximations
and bounds for more general distribution systems.
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January 11,
2007
7:15 PM - 8:30 PM (Thursday)
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Gautam Ray
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University of Texas at Austin
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Asset Characteristics And The Impact Of It On Firm Scope And Performance |
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Abstract:
This research examines how the nature of firms’ assets and information technology (IT)
interact to influence the level of vertical integration and horizontal diversification. The
analysis suggests that IT is associated with a greater decrease in vertical integration in firms
with more tangible assets. The analysis also indicates that IT is associated with a greater
increase in horizontal diversification in firms with more intangible assets. The general
implication of this research is that firms with more tangible assets may use IT to become
more vertically specialized, whereas firms with more intangible assets may deploy IT to
become more horizontally diversified.
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January 10,
2007
1:15 PM - 2:30 PM (Wednesday)
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Sarang Deo
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UCLA Anderson School of Management
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Optimal Scale-Up Of HIV Treatment In Resource-Constrained Settings |
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Abstract:
HIV / AIDS is a serious public health concern in many developing countries with prevalence rates well over 20%. However, less than a fifth of the patients eligible for treatment and receive highly active antiretroviral therapy (HAART). Supply chain management and logistics is often cited as one of the biggest challenges in scaling up HAART. In addition to the aggregate shortage, clinics have to contend with uncertain supply resulting from inadequate supply management skills and a weak infrastructure. This supply uncertainty, combined with the clinical necessity of an uninterrupted treatment throughout patients’ life, complicates the issue of treatment rationing and scaling up HAART programs. In this paper, we use stochastic dynamic programming to derive the optimal treatment rationing and scale-up policy in the case of both finite and infinite horizon. Using numerical analysis we illustrate that the rationing policies used in practice can substantially under-perform compared to the optimal policy. We also use our model to draw implications for the resource allocation decision in non-profit organizations where continuity of service is crucial to meeting the organization’s social objective.
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January 8,
2007
1:15 PM - 2:30 PM (Monday)
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Ram Gopal
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University of Connecticut and Indian School of Business
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Intellectual Property Rights and Digital Goods: Findings On Software And Music Piracy |
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Abstract:
Unauthorized duplication or piracy of products in digital formats has raised significant concern in industries such as software, music and movies. However, there continues to be a vigorous debate on the net impact and the extent of impact of piracy on the market for legitimate products. A significant body of research has addressed the effectiveness of various measures to combat piracy including technological, legal and economic schemes. In the talk I will outline and contrast our work on software piracy and more recently music piracy. Key findings of our work on software piracy relate to the important factors that explain the significant disparities in piracy rates across countries and the effectiveness of economic instruments such as price discrimination and product bundling on managing software piracy. Our work on music piracy focuses on the relationship between piracy and search costs related to product uncertainty and differential impact of piracy on superstars and relatively unknown artists. Armed with micro-level individual data on piracy behaviors on p2p networks we shed important new light on the impact of music industry’s legal actions against individual file sharers and measure the impact of the level of piracy on the success of music albums on the Billboard charts.
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January 4,
2007
1:15 PM - 2:30 PM (Thursday)
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Karthik Ramachandran
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University of Texas at Austin
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Design Architecture And Introduction Timing For Rapidly Improving Industrial Products |
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Abstract:
Technological advances present firrms in many industries with opportunities to substantially
improve their product's capabilities in short periods of time. Customers who invest in these
products may, however, react adversely to rapid improvements that obsoletes their previous
versions by deferring their purchase. In industrial markets, there is an emerging trend of se-
quentially improving products designed to be upgraded in a modular fashion. We study in
this paper the impact of product architecture and introduction timing on the launch of rapidly
improving products. We find that by localizing performance improvements in a sequence of
upgradable modules of the product, a firm can better manage the introduction of rapidly im-
proving products. Specifically, we show that modular upgradability can reduce the need for
slowing the pace of innovation or foregoing upgrade pricing. The additional flexibility in pricing
and timing makes the modular upgradable approach preferable over an integrated architecture,
even in some situations where there may be distinct performance or cost-related disadvantages
to pursuing the modular architecture. We differentiate between proprietary and non-proprietary
approaches to modular upgradability and consider the implications for profits. Our central con-
tribution in this paper is the innovative integration of product architecture with pricing and
timing decisions for managing the introduction of rapidly improving products.
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December 30,
2006
11:00 AM - 12:30 PM (Saturday)
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Kannan Srikanth
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London Business School
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Coordination In The Remote Delivery Of Services |
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Abstract:
How do organizations coordinate interdependent activities across geographic distance? We analyze
121 surveys of offshored processes to understand both the sources of difficulty in the remote delivery
of services as well as how organizations overcome these difficulties. We find that contrary to
conventional wisdom, system dependence of a process is a much greater hindrance to the offshoring
service delivery than process stickiness. We also find that firms could overcome system dependence
by either investing in generating common ground across locations to coordinate over interdependence.
However, our findings indicate that investing in modularity or in facilitating ongoing communication
across locations does not lead to coordination across geographic distance. We find differences
between simple and complex processes on the use of these coordination mechanisms.
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December 30,
2006
2:30 PM - 4:00 PM (Saturday)
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Prashant Kale
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University of Michigan
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The Role Of Managerial Choice In Theories Of Equity Ownership: Do Managers Choose According To Theory? |
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Abstract:
We use the policy capture methodology to assess the importance of managerial choice as a mechanism in theories that focus on resource value (e.g., Resource-based Theory) and transactional hazards (e.g., Transaction Costs Economics) respectively in explaining equity ownership in inter-firm relationships. Our results show that managerial choices are consistent with theories that draw on resource value as well as transaction hazard considerations, although they more strongly aligned with theories that emphasize resource value as the key antecedent of ownership choices. Further, resource value considerations also explain managers’ choices regarding the level of ownership, in terms of minority ownership, non-majority ownership or majority equity ownership in these relationships, whereas transaction hazards do not. Finally, resource value and transactional hazard considerations jointly influence managers’ ownership choices in inter-firm relationships, such that the impact of resource value in explaining ownership choices is moderated by transaction hazard considerations. These findings suggest possible opportunities to refine and integrate these existing theories used to explain ownership.
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December 28,
2006
10:30 AM - 12:00 PM (Thursday)
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Natarajan Balasubramanian
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UCLA Anderson School of Management
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Industry Learning Environments And The Heterogeneity Of Firm Performance |
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Abstract:
This talk characterizes inter-industry heterogeneity in rates of
learning-by-doing and examines how industry learning rates are connected with the heterogeneity of firm performance. Using data from the US Census Bureau and Compustat, we measure the industry learning rate as the coefficient on cumulative output in a production function. We find that learning rates vary considerably among industries and are higher in industries with greater R&D,advertising, and capital intensity. More importantly, we find that higher rates of learning are associated with wider dispersion of Tobin’s q and profitability among firms in the industry. Furthermore, we find that controlling for industry R&D and capital intensity, performance differences between new plants of incumbents and de novo entrants tend to increase with industry learning rates.Together,these findings suggest that learning intensity represents an important characteristic of the industry
environment.
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December 22,
2006
12:30 PM - 2:00 PM (Friday)
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Ravi Jagannathan
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Kellogg School
ISB
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Initial Public Offering of Equities: Offer Price, Underpricing, and IPO Auctions |
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December 20,
2006
1:15 PM - 2:30 PM (Wednesday)
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Nishtha Langer
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Carnegie Mellon University
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Ushering Buyers Into Electronic Channels |
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Abstract:
The Internet has emerged as a viable sales channel that influences the behavior of individual and institutional buyers. Recognizing this, many firms are adopting electronic channels in addition to the traditional
(physical) channels for sales. The use of electronic channels raises several questions for sellers. When should products be sold through the physical channel and when should they be sold through the electronic channel? What type of product can be best sold through the electronic channel? How does buyers’ use of the electronic channel change over time? Does introducing the electronic channel increase firm revenue?We develop a structural econometric model to examine these research questions in a particular setting: the sales of product from a medium-sized return center. The setting is especially well suited to study the dynamics of buyer behavior and its impact on firms’ channel choice. We observe buyer and seller behavior in both channels. Moreover, there are no differences across channels in the extent of information asymmetry between buyer and seller. We use archival data for over 43 months to conduct two sets of analyses. First, we understand and categorize buyers’ response model by estimating the firm’s current model. Later, we demonstrate potential improvements from understanding buyer response by using our structural model to simulate outcomes from a proposed policy change.
We contribute to the growing body of research on electronic markets in the following ways. First, we empirically identify buyer shifts between electronic and physical channels. We use archival data to model existing sales processes and analyze seller’s channel inertia and buyers’ channel loyalty. We assess the impact of buyer heterogeneity on firm profitability. Finally, we show that mere adoption of the electronic channel may not lead to higher profits: a firm needs to adapt its strategy based on buyers’ response to channel selection.
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December 19,
2006
1:15 PM - 2:30 PM (Tuesday)
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Sreekumar Bhaskaran
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Cox School of Business-SMU
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Strategic Implications For Leasing Or Selling Durable Goods Through Competing Intermediaries |
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Abstract:
In spite of the fact that many durable products are sold through dealers, the literature has
largely ignored the issue of how product durability affects the interactions between a manufacturer
and her dealers. We seek to fill this gap by considering a durable goods manufacturer that
uses independent dealers to get her product to consumers. In contrast to much of the literature,
we specifically consider the possibility that if the manufacturer sells her product, then the dealers
can either sell or lease it to the final consumer. One of our more interesting findings is that, when
the level of competition among dealers is high, the manufacturer prefers to lease the product to
her dealers, which forces them to lease to consumers. This complements existing results that show
that when suppliers of durable goods interact directly with consumers, then selling becomes the
dominant strategy when competitive intensity is high. In addition, our result helps to explain differences
in the selling / leasing policies that are observed in the office equipment and automobile
industries.
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December 15,
2006
12:30 PM - 2:00 PM (Friday)
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Krishna Ramaswamy
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Wharton, UPenn
ISB
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The Benefits of Volume-Conditional Order Crossing |
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December 14,
2006
11:00 AM - 12:30 PM (Thursday)
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Rajesh Chakrabarti
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Georgia Institute of Technology and Indian School of Business
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Mars-Venus Marriages: Culture and Cross-Border M&A |
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Abstract:
Analyzing cross-border acquisitions during the 1990’s, we find that contrary to general perception, cross-border acquisitions perform better in the long-run if the acquirer and the target come from countries that are culturally more disparate. We use the Hofstede measure of cultural dimensions to measure cultural distance but also examine alternative measures. The positive effect of cultural distance persists after controlling for several deal-specific variables and country-level fixed effects, and is robust to alternative specifications of long-term performance. Cash and friendly acquisitions tend to perform better in the long-run. There is also some evidence of synergies when acquirers from stronger corporate governance regimes acquire targets from weaker regimes.
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December 11,
2006
11:00 AM - 12:30 PM (Monday)
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Ajai Gaur
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National University of Singapore
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Institutional Environments Staffing Strategies And Subsidiary Performance |
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Abstract:
We use an institutional perspective to advance our understanding of how the host country environment influences subsidiary staffing strategy. We propose and find that firms rely more on parent company nationals in institutionally distant environments for reasons related to the efficient transfer of management practices and firm-specific capabilities. Further, we find that the positive influence of expatriate staffing levels on subsidiary performance is dependent on the institutional distance between the host and home country, and subsidiary experience. We base our findings on our analysis of expatriate employment levels and performance in 13,015 foreign subsidiaries of 2,952 Japanese firms in 48 countries.
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December 7,
2006
12:30 PM - 2:00 PM (Thursday)
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Thomas Hellman
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University of British Columbia
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The Importance of Trust for Investment: Evidence from Venture Capital |
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December 4,
2006
1:15 PM - 2:30 PM (Monday)
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Rama Velamuri
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IESE Business School-University of Navarra
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Ethical Behaviors Of Entrepreneurs And Stakeholder Resource Commitments To Ventures |
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Abstract:
We examine the role of the ethical values of founders in influencing the emergence of stakeholder networks in the nascent and early stages of their firms, and specifically seek to explain 1) the diversity of stakeholder groups making resource commitments, and 2) the diversity of their motivations. We propose that this relationship is mediated by the salience for stakeholders of the firm’s ethical values, and that this salience in turn is influenced by entrepreneur attributes and behaviors, industry characteristics, and the broader socio-political and economic environment. We propose a theoretical model based on our findings.
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December 1,
2006
12:30 PM - 2:00 PM (Friday)
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Michael Gordy
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Indian School of Business
Federal Reserve Board, Washington DC
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The Bank as Hangman: The Role of Bank Lending in Securing Recoveries on Defaulted Debt (with Mark Carey) |
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November 28,
2006
1:15 PM - 2:30 PM (Tuesday)
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Tridib Mazumdar
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Syracuse University
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Components of Optimal Price Under Logit Demand - An Approximation |
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Abstract:
Components of Optimal Price Under Logit Demand
Demand for durables can be modeled using a logit framework in which a customer
chooses one brand from several alternatives, or buys nothing at all. In this framework, optimal
prices for competing brands can be expressed as a system of nonlinear equations, which,
however, do not have closed form solutions. Although the optimal price can be determined by
numerical search, the solution offers limited understanding of its components. In this article,
we develop a linear approximation of the Nash equilibrium optimal price of a brand as its
marginal cost plus a weighted sum of: (1) the inverse of the price sensitivity of the market, (2)
the average value added by all brands in the market, and (3) the value advantage (or
disadvantage) of the brand. The weights depend primarily upon the number of competing
brands, with price insensitivity having the strongest impact, followed by value advantage of the
brand, and average value added by all brands. This approximation for optimal price is found to
be robust under a wide range of conditions. Additionally, we demonstrate that using the
approximation results in only marginal deviation of profits from the theoretical Nash optimal.
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November 24,
2006
11:00 AM - 12:30 PM (Friday)
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Uday Apte
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Naval Postgraduate School
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Analysis and Improvement of Delivery Operations at the San Francisco Public Library |
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Abstract:
Urban public library systems have always transported and delivered library materials within their branch systems. In recent years, however, the introduction of internet-based, online library catalog systems has allowed users to search the library’s catalog, select and reserve a book or a video, and have it delivered to the branch of their choice. Consequently, the demand for delivery services is increasing at rapid rate in large urban public libraries systems.
Having experienced a similar growth in the demand for delivered items, the San Francisco Public Library (SFPL) commissioned a study to improve its delivery operations. Using operations management concepts such as pre-sorting of material to avoid double handling, cross docking to reduce cycle time of delivery, and workload balancing among delivery routes to effectively increase delivery capacity, the delivery operations were restructured. We developed optimization models for library delivery operations that specifically accounted for pre-sorting, cross docking and route balancing. We also developed heuristics for solving these models and implemented them to redesign the delivery operations at SFPL.
The redesigned delivery operations will reduce the cycle time and the cost of delivery by almost half. Furthermore, through balanced utilization of existing truck capacities, the delivery operations will be able to handle significantly larger delivery volume and thereby accommodate future delivery service growth without additional investments. The operations management concepts and techniques illustrated in this paper through the example of SFPL should prove to be useful to other urban, multi-branch library systems as they deal with their delivery challenges.
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November 23,
2006
12:30 PM - 2:00 PM (Thursday)
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Ashok Rai
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Williams College
ISB
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Cosigners Help (with Stefan Klonner) |
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November 17,
2006
12:30 PM - 2:00 PM (Friday)
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Sandeep Juneja
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Indian School of Business
TIFR
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Optimal Resource Allocation in Stochastic PERT Networks to Minimize Large Delays (with Himanshu Kalra) |
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October 31,
2006
1:15 PM - 2:30 PM (Tuesday)
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Vijay Mookerjee
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University of Texas at Dallas
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Maintaining Diagnostic Knowledge-based Systems: A Control Theoretic Approach |
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Abstract:
Diagnostic knowledge-based systems are used in a variety of application domains to support classification decisions. The effectiveness of such systems often decreases as the application environment or user preferences change over time. Hence frequent adjustments to the system with knowledge by a human expert become necessary. We study the problem of determining the optimal amount of effort a human expert should expend to maintain the system over a planning horizon (finite or infinite). Using the ROC curve to derive a measure for system accuracy, we minimize total costs by balancing misclassification costs on the one hand with the cost of human intervention on the other. The problem is cast as an optimal control model in which the goal is to choose the rate at which human effort must be expended to minimize total cost. We find that the optimal solution usually follows a bang-bang plus singular structure. The singular structure of the solution is especially interesting because it corresponds to a steady level of human effort for problems with a sufficiently large time horizon. The maintenance problem is also solved as a discrete, impulse control problem.
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October 27,
2006
12:30 PM - 2:00 PM (Friday)
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Michael Gordy
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Indian School of Business
Federal Reserve Board, Washington DC
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Efficient Simulation of Value-at-Risk for Portfolios of CDOs (with Sandeep Juneja) |
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October 26,
2006
1:15 PM - 2:30 PM (Thursday)
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Skander Esseghaier
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Koc University, Istanbul
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Contingent Free Shipping And Repeat Buying On The Internet |
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Abstract:
Internet retailers frequently experiment with different shipping policies. Free shipping and free shipping “with conditions” are considered to among the most effective marketing tool in e-tailing, yet their impact on consumer shopping behavior is not well understood nor their impact on the firm’s profit has been carefully analyzed. This research addresses these issues by modeling the optimal shopping policy for a rational, surplus-maximizing shopper, who repeatedly purchases a non-durable product from an Internet site. We focus on value-contingent free shipping, where the site waives the shipping fee once expenditures reach a given threshold. Free shipping and fixed-fee shipping are analyzed as benchmark cases. We find that value-contingent free shipping policies allow the firm to generate larger order sizes and have a higher profit impact than either of free shipping and fixed-fee shipping policies. Our analysis then focuses on understanding the interaction between price and free shipping threshold under a value-contingent free shipping policy. From the shopper perspective, we highlight some non-intuitive results on the impact of changes in threshold levels and prices on the shopper’s welfare. From a firm’s perspective, we highlight how the optimal choice of threshold, price and shipping fee critically depends on the firm’s order processing costs. Additional implications on price dispersion for homogenous goods are discussed along with comScore data which are consistent with predictions from the model.
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October 25,
2006
12:30 PM - 2:00 PM (Wednesday)
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Avner Kalay
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University of Utah
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Ex dividend day arbitrage in the option markets (with Jia Hao (University of Utah) and Stewart Mayhew (SEC) |
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October 17,
2006
1:15 PM - 2:30 PM (Tuesday)
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Senthil Veeraraghavan
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University of Pennsylvania
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Retail Supply Chain Rationing With Customer Learning Behavior |
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Abstract:
We consider a firm selling a product that has uncertain quality through both direct and indirect channels. Each arriving customer observes private, imperfect information about the quality. Customers also estimate the probability of getting a product, based on their choice behavior. A customer arriving at one channel complements his private information about the quality of the product by the inventory levels. We answer (i) how the inventory levels influence the customer purchasing behavior and (ii) how the manufacturer can strategically allocate his production capacity. We study how the rationing policies to retailers widely differ if the customers were to make their decisions strategically.
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October 6,
2006
12:30 PM - 2:00 PM (Friday)
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Michael Gordy
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Indian School of Business
Federal Reserve Board, Washington DC
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A Lecture on 'Theoretical Foundation for Basel II Bank Capital Rules' |
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September 19,
2006
4:30 PM - 6:00 PM (Tuesday)
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Tom Nohel
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Loyola University
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Side-by-Side Management Of Hedge Funds And Mutual Funds |
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Abstract:
We examine situations where the same fund manager simultaneously manages mutual funds and hedge funds. We refer to this as side-by-side management of mutual funds and hedge funds. We document 112 such cases involving 207 hedge funds and 304 mutual funds. The 155 side-by-side managed mutual funds in our sample in existence in 2004 managed a total of $123 billion, raising significant concerns for regulators. Proponents of this practice argue that it is essential to hire and retain star performers. Detractors argue that the temptation for abuse is high and the practice should be banned. More than 60% of the side-by-side arrangements identified are since 1999. Moreover, it is an arrangement we especially see with managers of growth-oriented equity funds. An analysis based on Sharpe ratios, 4-factor alphas, and a pooled time-series cross-sectional regression suggests that side-by-side managers significantly outperform peer funds, consistent with this privilege being granted primarily to star performers. We conclude that proposed disclosure of side-by-side relationships is sufficient to allay fears of investor exploitation.
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September 8,
2006
12:30 PM - 2:00 PM (Friday)
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Raja Kali
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University of Arkansas
Indian School of Business
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Social Embeddedness and Economic Governance: A Small World Approach |
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August 29,
2006
1:15 PM - 2:30 PM (Tuesday)
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Sandeep Juneja
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Tata Institute of Fundamental Research and Indian School of Business
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Efficient Computation Techniques For Pricing American Options Using Function Approximations |
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Abstract:
Monte Carlo simulation techniques that use function approximations have been successfully applied to approximately price multi-dimensional American options. However, for many pricing problems the time required to get accurate estimates can still be prohibitive and this motivates the development of variance reduction techniques. In this talk, we describe a zero-variance or `perfect' control variate and a zero variance or `perfect' importance sampling distribution to price American options. We also observe the natural connection between the perfect control variate with additive duality and the perfect importance sampling with multiplicative duality in American options. We then discuss how function approximations may be used to approximate the perfect control variate and the perfect importance sampling distribution. Empirically, we observe that both the techniques give significant computational benefits in pricing single and multi-dimension options.
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August 25,
2006
12:30 PM - 2:00 PM (Friday)
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Mudit Kapoor
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Indian School of Business
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A model of Chit Funds/ROSCAs |
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August 23,
2006
1:15 PM - 2:30 PM (Wednesday)
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Haritha Saranga
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Indian School of Business
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Productivity and Technical Changes In The Indian Auto Component Industry |
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Abstract:
Links between firm level externally validated changes in quality such as certificates, awards, etc. and their impact on firm productivity in the Indian auto component industry are studied through this research. A non parametric approach based on Data Envelopment Analysis is used to estimate productivity change for each year during the eleven year period 1993-2003 for a sample of 50 firms in the Indian auto component industry. Productivity improvement is decomposed into gains due to technical change and improvement in relative efficiency. The study shows that the average productivity of the industry increased by nearly 40% over this period, which is essentially due to technical gains of 40.5% and a negative contribution from relative efficiency change of -0.5% during this period. There is an almost equal growth in productivity and technical changes during the periods 1993-1998 (25.4% & 22.75%) and 1998-2003 (22.5% & 25.69%). However, there is an increase in relative efficiency of 2.6% during 1993-1998, offset by a decrease of 3.1% during 1998-2003, which ultimately resulted in the negative growth in relative efficiency of 0.5% for the entire period. Next, we use parametric methods to study the impact of certification and quality awards on estimated productivity, technical and relative efficiency gains, controlling for factors such as age, export orientation, and firm size. We find that award winning firms, whose initial characteristics were no different than the rest of the industry, do not show significantly higher productivity gains during either period. Firms that were certified after 1998 are associated with significantly higher technical and relative efficiency gains. In addition, it is found that larger firms exhibited higher technical gains, and newer firms exhibited both technical and relative efficiency gains. In summary, we find that there is a positive correlation between quality initiatives and productivity improvement in the Indian auto component industry, but the results suggest the need for further analysis to understand the financial benefits of quality improvement in the Indian auto component industry.
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August 18,
2006
1:15 PM - 2:30 PM (Friday)
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Viral Acharya
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London Business School
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Finance And The Efficiency Of Capital Allocation: Do Bank Branching Regulations Matter? |
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Abstract:
We use portfolio theory to quantify the efficiency of state-level sectoral patterns of production in the United States. For each state, we calculate the efficient frontier for investments in the real economy, the efficient Sharpe ratio, and the corresponding weights on investments in different industries. We study how rapidly different states converge to an efficient allocation, depending on access to finance. In particular, convergence is faster - both in terms of distance to the efficient frontier and improving Sharpe ratios - following intra- and inter-state liberalization of branching restrictions in the banking sector. The realized industry shares of output converge faster to efficiency following liberalization, particularly for industries that (i) depend on external finance, and (ii) are characterized by young and small .rms. In contrast, we do not find any strong effect of liberalization on convergence of the level of output growth for the state. The results suggest that financial development has important consequences for the efficiency and specialization (or diversification) of investments, in a manner that depends crucially on the variance-covariance properties of investment returns, rather than on their average only.
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August 16,
2006
1:15 PM - 2:30 PM (Wednesday)
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Murgie Krishnan
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Yeshiva University
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Event Study With Private Information And Imperfect Competition:Earnings Announcements Revisited |
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Abstract:
We implement an event study in a financial market with imperfect competition and private information characterized by a Kyle-type model. We invert the equilibrium mapping from the unobservable primitive variance parameters to parameters of observable variables such as price changes and order flows. Using intraday trades and quotes data, we compute MLEs of these primitive parameters (the variance of fundamentals given only public information, the variance of errors in private signals, and the variance of uninformed liquidity trading (noise)). An out of sample test shows that the Kyle-type model we use is a good candidate for describing the setting generating our data. Consistent with models that predict that liquidity traders trade around public announcements, we find that liquidity noise is higher within an earnings announcement window. The variance of beliefs given only public information is also higher within an earnings announcement window, in line with the Fischer-Stocken (2004) argument that agents with more ability and opportunity to manipulate a disclosure cause the disclosure to be more variable. The variance of private information error is smaller in an event window, consistent with greater information acquisition to try and interpret a public announcement. We also document that Kyle’s λ is higher in an event window, showing an overall increase in information asymmetry. We also find that the acquisition of private information is not significantly related to abnormal trading volume. We observe that a greater diffuseness of beliefs given public information alone, and even more so, liquidity noise, are the primary drivers of abnormal trading volume in an event window.
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August 1,
2006
1:15 PM - 2:30 PM (Tuesday)
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Lakshmanan Shivakumar
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London Business School
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Earnings Quality at Initial Public Offerings |
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Abstract:
Financial reporting around the time of IPOs is consistent with listed firms reporting more conservatively than previously as private firms, consistent with the results in Ball and Shivakumar (2005). We hypothesize that IPO firms supply the higher quality financial reports demanded by public investors, who face higher information asymmetry than private investors. The market mechanisms for enforcing this demand include monitoring by internal and external auditors, boards, analysts, rating agencies, the press and other parties. Once public, firms are subject to greater regulatory scrutiny and penalties. From the point of releasing the public prospectus document onwards, IPO firms face a greater threat of shareholder litigation and regulatory action if they do not meet higher reporting standards. The evidence is overwhelmingly in favor of this hypothesis. We show that the evidence reported by Teoh, Welch and Wong (1998) in support of the alternative hypothesis, that IPO firms opportunistically inflate earnings to influence the IPO price, is unreliable for a variety of reasons. We provide cleaner evidence, from samples of U.K. and U.S. IPOs, that IPO prospectus financials are conservative by several standards. We conjecture that the types of bias we observe in conventional estimates of “discretionary” accruals occur in a broad genre of studies on earnings management around large transactions and events.
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July 26,
2006
1:15 PM - 2:30 PM (Wednesday)
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Raja Kali
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University of Arkansas and Indian School of Business
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Financial Contagion on the International Trade Network |
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Abstract:
We combine data on international trade linkages with a network approach to map the global trading system as an interdependent complex network. This enables us to obtain indicators of how well connected a country is into the global trading system. We use these network-based measures of connectedness to explain stock market returns during recent episodes of financial crisis. We find that a crisis is amplified if the epicenter country is better integrated into the trade network. However, target countries affected by such a shock are in turn better able to dissipate the impact if they are well integrated into the network. A network approach can help explain why the Mexican, Asian and Russian financial crises were highly contagious, while the crises that originated in Venezuela and Argentina did not have such a virulent effect. We suggest that a network approach incorporating the cascading and diffusion of interdependent ripples when a shock hits a specific part of the global trade network provides us with an improved explanation of financial contagion.
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July 21,
2006
1:15 PM - 2:30 PM (Friday)
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Sridhar Moorthy
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University of Toronto and Indian School of Business
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Measuring Brand Value in an Equilibrium Framework |
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Abstract:
We propose a structural approach to measuring brand value in an equilibrium framework
using observational data. Brand value is defined as the difference in equilibrium profit between the brand in question and its counterfactual unbranded equivalent on search at-
tributes. Our structural model allows us to make this computation rigorously, taking into
account competitors’ and retailers’ reactions in the real and in the counterfactual situations. We illustrate our method on aggregate and individual-level data in two product categories, ready-to-eat cereal and ketchup, and compare our brand value estimates with those obtained from previously offered reduced-form methods.
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June 16,
2006
12:30 PM - 2:00 PM (Friday)
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Sridhar Moorthy
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University of Toronto
Indian School of Business
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Selling through a vertically integrated retailer |
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June 2,
2006
12:30 PM - 2:00 PM (Friday)
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Sudip Gupta
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Indian School of Business
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A Copula based estimation of first price auction models |
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May 5,
2006
12:30 PM - 2:00 PM (Friday)
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Push-Pull Effects in Rx Pharmaceutical Promotion |
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