Multiple Equilibria in Asymmetric First-Price Auctions
AbstractMaskin and Riley (2003) and Lebrun (2006) prove that the Bayes-Nash equilibrium of first-price auctions is unique. This uniqueness requires the assumption that a buyer never bids above his value. We demonstrate that, in asymmetric first-price auctions (with or without a minimum bid), the relaxation of this assumption results in additional equilibria that are "substantial." Although in each of these additional equilibria no buyer wins with a bids above his value, the allocation of the object and the selling price may vary among the equilibria. Furthermore, we show that such phenomena can only occur under asymmetry in the distributions of values.
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Bibliographic InfoPaper provided by The Center for the Study of Rationality, Hebrew University, Jerusalem in its series Discussion Paper Series with number dp591.
Length: 17 pages
Date of creation: Nov 2011
Date of revision:
asymmetric auctions; first-price auctions; multiple equilibria;
Other versions of this item:
- Kaplan, Todd R & Zamir, Shmuel, 2011. "Multiple equilibria in asymmetric first-price auctions," MPRA Paper 34937, University Library of Munich, Germany.
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- D44 - Microeconomics - - Market Structure and Pricing - - - Auctions
This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-12-13 (All new papers)
- NEP-CTA-2011-12-13 (Contract Theory & Applications)
- NEP-GTH-2011-12-13 (Game Theory)
- NEP-MIC-2011-12-13 (Microeconomics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems
116, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
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