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Implementation of Communication Equilibria by Correlated Cheap Talk : the Two-Player Case

  • Forges, Françoise
  • Vida, Péter

We show that essentially every communication equilibrium of any finite Bayesian game with two players can be implemented as a strategic form correlated equilibrium of an extended game, in which before choosing actions as in the Bayesian game, the players engage in a possibly fin nitely long (but in equilibrium almost surely fi nite), direct, cheap talk.

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Paper provided by Paris Dauphine University in its series Economics Papers from University Paris Dauphine with number 123456789/8159.

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Date of creation: Jan 2013
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Publication status: Published in Theoretical Economics, 2013, Vol. 8, no. 1. pp. 95-123.Length: 28 pages
Handle: RePEc:dau:papers:123456789/8159
Contact details of provider: Web page: http://www.dauphine.fr/en/welcome.html
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  11. Heller, Yuval & Solan, Eilon & Tomala, Tristan, 2012. "Communication, correlation and cheap-talk in games with public information," Games and Economic Behavior, Elsevier, vol. 74(1), pages 222-234.
  12. Martin J Osborne & Ariel Rubinstein, 2009. "A Course in Game Theory," Levine's Bibliography 814577000000000225, UCLA Department of Economics.
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  18. Ben-Porath, Elchanan, 1998. "Correlation without Mediation: Expanding the Set of Equilibrium Outcomes by "Cheap" Pre-play Procedures," Journal of Economic Theory, Elsevier, vol. 80(1), pages 108-122, May.
  19. Gossner, Olivier & Vieille, Nicolas, 2001. "Repeated Communication Through the Mechanism And," Economics Papers from University Paris Dauphine 123456789/6031, Paris Dauphine University.
  20. Amparo Urbano & Jose Vila, 2004. "Computationally restricted unmediated talk under incomplete information," Economic Theory, Springer, vol. 23(2), pages 283-320, January.
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  24. Ben-Porath, Elchanan, 2003. "Cheap talk in games with incomplete information," Journal of Economic Theory, Elsevier, vol. 108(1), pages 45-71, January.
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  27. Robert J. Aumann & Sergiu Hart, 2003. "Long Cheap Talk," Econometrica, Econometric Society, vol. 71(6), pages 1619-1660, November.
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