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Efficiency and Mechanisms with No Regret

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  • Chakravorti, Bhaskar

Abstract

Can the author always design a game form so that all its Bayesian equilibrium outcomes are either interim individually rational efficient or interim envy-free efficient in asymmetric information economies? The author shows that the answer is no. Given that such games exist in complete information economies, can this gap be filled by games that leak information endogenously without enlarging the equilibrium set? The author adopts two approaches. First, he introduces a theory of "cheap play" as a natural model of such games. The second is an extreme approach that adopts an ex post viewpoint. Neither yields a possibility result. Copyright 1992 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.

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  • Chakravorti, Bhaskar, 1992. "Efficiency and Mechanisms with No Regret," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 33(1), pages 45-59, February.
    • Handle: RePEc:ier:iecrev:v:33:y:1992:i:1:p:45-59
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    Cited by:

    1. Serrano, Roberto & Vohra, Rajiv, 2010. "Multiplicity of mixed equilibria in mechanisms: A unified approach to exact and approximate implementation," Journal of Mathematical Economics, Elsevier, vol. 46(5), pages 775-785, September.
    2. Georgy Artemov & Takashi Kunimoto & Roberto Serrano, 2007. "Robust Virtual Implementation with Incomplete Information: Toward a Reinterpretation of the Wilson Doctrine," Working Papers 2007-6, Brown University, Department of Economics.
    3. Serrano, Roberto & Vohra, Rajiv, 2005. "A characterization of virtual Bayesian implementation," Games and Economic Behavior, Elsevier, vol. 50(2), pages 312-331, February.
    4. Chakravorty, Bhaskar & Corchon, Luis C. & Wilkie, Simon, 2006. "Credible implementation," Games and Economic Behavior, Elsevier, vol. 57(1), pages 18-36, October.
    5. Roberto Serrano, 2003. "The Theory of Implementation of Social Choice Rules," Working Papers 2003-19, Brown University, Department of Economics.

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