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Equilibria in Infinite Games of Incomplete Information

Listed author(s):
  • Oriol Carbonell-Nicolau

    ()

    (Rutgers University)

The notion of communication equilibrium extends Aumann’s [3] correlated equilibrium concept for complete information games to the case of incomplete information. This paper shows that this solution concept has the following property: for the class of incomplete information games with compact metric type and action spaces and payoff functions jointly measurable and continuous in actions, limits of Bayes-Nash equilibria of finite approximations to an infinite game are communication equilibria (and in general not Bayes-Nash equilibria) of the limit game. Another extension of Aumann’s [3] solution concept to the case of incomplete information fails to satisfy this condition.

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Paper provided by Rutgers University, Department of Economics in its series Departmental Working Papers with number 201702.

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Length: 25 pages
Date of creation: 20 Feb 2017
Handle: RePEc:rut:rutres:201702
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  1. Philip J. Reny, 2011. "On the Existence of Monotone Pure‐Strategy Equilibria in Bayesian Games," Econometrica, Econometric Society, vol. 79(2), pages 499-553, 03.
  2. Philip Reny, 2011. "Strategic approximations of discontinuous games," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 48(1), pages 17-29, September.
  3. Aumann, Robert J., 1974. "Subjectivity and correlation in randomized strategies," Journal of Mathematical Economics, Elsevier, vol. 1(1), pages 67-96, March.
  4. Oriol Carbonell-Nicolau & Richard McLean, 2014. "On the existence of Nash equilibrium in Bayesian games," Departmental Working Papers 201402, Rutgers University, Department of Economics.
  5. Philip J. Reny, 1999. "On the Existence of Pure and Mixed Strategy Nash Equilibria in Discontinuous Games," Econometrica, Econometric Society, vol. 67(5), pages 1029-1056, September.
  6. FORGES, Françoise, "undated". "Five legitimate definitions of correlated equilibrium in games with incomplete informations," CORE Discussion Papers RP 1071, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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  12. Paul R. Milgrom & Robert J. Weber, 1985. "Distributional Strategies for Games with Incomplete Information," Mathematics of Operations Research, INFORMS, vol. 10(4), pages 619-632, November.
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  18. He, Wei & Yannelis, Nicholas C., 2016. "Existence of equilibria in discontinuous Bayesian games," Journal of Economic Theory, Elsevier, vol. 162(C), pages 181-194.
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