Publications

14 Jan 2010
Working Paper Summaries

Optimal Auction Design and Equilibrium Selection in Sponsored Search Auctions

Keywords: by Benjamin G. Edelman & Michael Schwarz

May 2010
Article

Optimal Auction Design and Equilibrium Selection in Sponsored Search Auctions

By: Benjamin Edelman and Michael Schwarz

We characterize the optimal (revenue maximizing) auction for sponsored search advertising. We show that a search engine's optimal reserve price is independent of the number of bidders and independent of the rate at which click-through rate declines over positions. We... View Details

Keywords: Auctions; Revenue; Advertising; Search Technology; Price; Bids and Bidding

Article

Learning and Equilibrium as Useful Approximations: Accuracy of Prediction on Randomly Selected Constant Sum Games

By: Ido Erev, Alvin E. Roth, R. Slonim and Greg Barron

Keywords: Learning; Forecasting and Prediction; Outcome or Result

2006
Working Paper

Learning and Equilibrium As Useful Approximations: Accuracy of Prediction on Randomly Selected Constant Sum Games

By: Ido Erev, Alvin E. Roth, Robert L. Slonim and Greg Barron

July 2014
Article

Convergence of Position Auctions under Myopic Best-Response Dynamics

By: Matthew Cary, Aparna Das, Benjamin Edelman, Ioannis Giotis, Kurtis Heimerl, Anna Karlin, Scott Duke Kominers, Claire Mathieu and Michael Schwarz

We study the dynamics of multi-round position auctions, considering both the case of exogenous click-through rates and the case in which click-through rates are determined by an endogenous consumer search process. In both contexts, we demonstrate that the dynamic... View Details

Keywords: Sponsored Search; Advertising; Google; Equilibrium Selection; Online Advertising; Advertising Industry

Summer 2014
Article

When Does a Platform Create Value by Limiting Choice?

By: Ramon Casadesus-Masanell and Hanna Halaburda

We present a theory for why it might be rational for a platform to limit the number of applications available on it. Our model is based on the observation that even if users prefer application variety, applications often also exhibit direct network effects. When there... View Details

Keywords: Platform Governance; Direct Network Effects; Indirect Network Effects; Complements; Tragedy Of The Commons; Equilibrium Selection; Coordination; Foresight; Strategy; Value Creation; Digital Platforms; Balance and Stability; Decision Choices and Conditions; Consumer Behavior; Applications and Software; Network Effects

March 2005
Article

Sovereign Debt As a Contingent Claim: A Quantitative Approach

By: Laura Alfaro and Fabio Kanczuk

We construct a dynamic equilibrium model with contingent service and adverse selection to quantitatively study sovereign debt. In the model, benefits of defaulting are tempered by higher future interest rates. For a wide set of parameters, the only equilibrium is one... View Details

Keywords: Sovereign Finance; Borrowing and Debt; Interest Rates; Balance and Stability; Risk and Uncertainty; Risk Management; Mathematical Methods; Management Style; Segmentation; Debt Securities; Banking Industry

Research Summary

Sovereign Debt as a Contingent Claim: A Quantitative Approach (joint with Fabio Kanczuk)

By: Laura Alfaro

We construct a dynamic equilibrium model with contingent service and adverse selection to quantitatively study sovereign debt. In the model, benefits of defaulting are tempered by higher future interest rates. For a wide parameter, the only equilibrium is one in which... View Details

2020
Working Paper

Arbitration with Uninformed Consumers

By: Mark Egan, Gregor Matvos and Amit Seru

This paper studies the impact of the arbitrator selection process on consumer outcomes by examining roughly 9,000 consumer arbitration cases in the securities industry. Securities disputes present a good laboratory: arbitration is mandatory for all disputes,... View Details

Keywords: Arbitration; Financial Advisers; Financial Advisors; Brokers; Consumer Finance; Financial Misconduct; Fraud; Personal Finance; Conflict and Resolution; Information; Fairness

2019
Working Paper

Does Apple Anchor a Shopping Mall? The Effect of the Technology Stores on the Formation of Market Structure

By: Doug J. Chung, Kyoungwon Seo and Reo Song

This study examines the effect of technology stores—company-owned Apple and Microsoft retail stores—on mall configuration. We formulate a structural model that considers the endogenous location decisions of retail stores, taking into account both market characteristics... View Details

Keywords: Apple Store; New Anchor Store; Discrete Game; Complete Information; Multiple Equilibria; GPGPU Technology; Simulator; Bayesian Estimation; Shopping Mall; Spillover

Article

Choosing Between Lotteries: Remarkable Coordination Without Communication

By: Yoella Bereby-Meyer, Simone Moran, Brit Grosskopf and Dolly Chugh

The current research examines tacit coordination behavior in a lottery selection task. Two hundred participants in each of three experiments and 100 in a fourth choose to participate in one of two lotteries, where one lottery has a larger prize than the other.... View Details

Research Summary

Bricks and Clicks: The Effect of Store Assortment on E-tail Format (with R. Lal and E. Ofek)

An often neglected aspect in existing studies of the Internet selling process is the high volume of product returns. Such returns reflect a major logistic expenditure on behalf of companies that sell over the net. The problem is reduced when consumers shop in physical... View Details

02 May 2013
Working Paper Summaries

Innovation, Reallocation, and Growth

Keywords: by Daron Acemoglu, Ufuk Akcigit, Nicholas Bloom & William Kerr

2008
Working Paper

Minimally Altruistic Wages and Unemployment in a Matching Model

By: Julio J. Rotemberg

This paper presents a model in which firms recruit both unemployed and employed workers by posting vacancies. Firms act monopsonistically and set wages to retain their existing workers as well as to attract new ones. The model differs from Burdett and Mortensen (1998)... View Details

Keywords: Retention; Selection and Staffing; Employment; Wages; Mathematical Methods

2021
Working Paper

Hunting for Talent: Firm-Driven Labor Market Search in the United States

By: Ines Black, Sharique Hasan and Rembrand Koning

This article analyzes the phenomenon of firm-driven labor market search—or outbound recruiting—where recruiters are increasingly “hunting for talent” rather than passively relying on workers to search for and apply to job vacancies. Our research methodology leverages... View Details

Keywords: Hiring; Referrals; Outbound Recruiting; Labor Markets; Selection and Staffing; Networks; Recruitment; Strategy; United States

2014
Working Paper

Multinational Firms, Labor Market Discrimination, and the Capture of Competitive Advantage by Exploiting the Social Divide

By: Jordan I. Siegel, Lynn Pyun and B.Y. Cheon

The organizational theory of the multinational firm holds that foreignness is a liability, and specifically that lack of embeddedness in host-country social networks is a source of competitive disadvantage; meanwhile the literature on labor market discrimination... View Details

Keywords: Prejudice and Bias; Human Capital; Selection and Staffing; Multinational Firms and Management; Competitive Advantage; Markets; Profit; Gender; South Korea