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Unmediated communication with partially verifiable types

  • Wagner, P.Achim
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    Abstract This paper studies unmediated communication with partially verifiable types in N-player games of incomplete information. I show that with five or more players, all outcomes that are feasible with the help of a mediator can also be achieved with direct communication between players if verifiable information can be encrypted. Without encryption, the set of equilibrium outcomes attainable with direct communication is generally strictly smaller than the set of mediated equilibrium outcomes, independent of the number of players in the game.

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    File URL: http://www.sciencedirect.com/science/article/pii/S0304-4068(10)00103-5
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    Article provided by Elsevier in its journal Journal of Mathematical Economics.

    Volume (Year): 47 (2011)
    Issue (Month): 1 (January)
    Pages: 99-107

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    Handle: RePEc:eee:mateco:v:47:y:2011:i:1:p:99-107
    Contact details of provider: Web page: http://www.elsevier.com/locate/jmateco

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    1. Frédéric Koessler & Francoise Forges, 2008. "Long persuasion games," Post-Print hal-00360719, HAL.
    2. Amparo Urbano & Jose E. Vila, 2002. "Computational Complexity and Communication: Coordination in Two-Player Games," Econometrica, Econometric Society, vol. 70(5), pages 1893-1927, September.
    3. Forges, F., 1987. "Universal mechanisms," CORE Discussion Papers 1987004, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    4. Robert J. Aumann & Sergiu Hart, 2003. "Long Cheap Talk," Econometrica, Econometric Society, vol. 71(6), pages 1619-1660, November.
      • Robert J. Aumann & Sergiu Hart, 2002. "Long Cheap Talk," Discussion Paper Series dp284, The Federmann Center for the Study of Rationality, the Hebrew University, Jerusalem, revised Nov 2002.
    5. Dino Gerardi, 2002. "Unmediated Communication in Games with Complete and Incomplete Information," Cowles Foundation Discussion Papers 1371, Cowles Foundation for Research in Economics, Yale University.
    6. repec:dau:papers:123456789/168 is not listed on IDEAS
    7. repec:dau:papers:123456789/179 is not listed on IDEAS
    8. V. Crawford & J. Sobel, 2010. "Strategic Information Transmission," Levine's Working Paper Archive 544, David K. Levine.
    9. Vijay Krishna, R., 2007. "Communication in games of incomplete information: Two players," Journal of Economic Theory, Elsevier, vol. 132(1), pages 584-592, January.
    10. Forges, Francoise & Koessler, Frederic, 2005. "Communication equilibria with partially verifiable types," Journal of Mathematical Economics, Elsevier, vol. 41(7), pages 793-811, November.
    11. 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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