Robust Implementation in General Mechanisms

Dirk Bergemann and Stephen Morris

Chapter 5 in Robust Mechanism Design:The Role of Private Information and Higher Order Beliefs, 2012, pp 195-239 from World Scientific Publishing Co. Pte. Ltd.

Abstract: AbstractA social choice function is robustly implemented if every equilibrium on every type space achieves outcomes consistent with it. We identify a robust monotonicity condition that is necessary and (with mild extra assumptions) sufficient for robust implementation.Robust monotonicity is strictly stronger than both Maskin monotonicity (necessary and almost sufficient for complete information implementation) and ex post monotonicity (necessary and almost sufficient for ex post implementation). It is equivalent to Bayesian monotonicity on all type spaces.

Keywords: Mechanism Design; Game Theory; Auction Theory; Implementation; Private Information; First and Higher-Order Belief; BayesNash Equilibrium; Ex Post Equilibrium; Rationalizability; Vickrey-Clarke-Groves Mechanisms; Private Value; Interdependent Value; Common Value; Belief-Free Mechanisms (search for similar items in EconPapers)
JEL-codes: C70 D0 (search for similar items in EconPapers)
Date: 2012
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Related works:
Journal Article: Robust implementation in general mechanisms (2011)
Working Paper: Robust Implementation in General Mechanisms (2010)
Working Paper: Robust Implementation in General Mechanisms (2010)
Working Paper: Robust Implementation in General Mechanisms (2008)
Working Paper: Robust Implementation in General Mechanisms (2008)
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