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Communication, Renegotiation and Coordination with Private Values (Extended Version)

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  • Heller, Yuval
  • Kuzmics, Christoph

Abstract

An equilibrium is communication-proof if it is unaffected by new opportunities to communicate and renegotiate. We characterize the set of equilibria of coordination games with pre-play communication in which players have private preferences over the feasible coordinated outcomes. Communication-proof equilibria provide a narrow selection from the large set of qualitatively diverse Bayesian Nash equilibria in such games. Under a communication-proof equilibrium, players never miscoordinate, play their jointly preferred outcome whenever there is one, and communicate only the ordinal part of their preferences. Moreover, such equilibria are robust to changes in players' beliefs, interim Pareto efficient, and evolutionarily stable.

Suggested Citation

  • Heller, Yuval & Kuzmics, Christoph, 2020. "Communication, Renegotiation and Coordination with Private Values (Extended Version)," MPRA Paper 102926, University Library of Munich, Germany, revised 26 Jul 2021.
    • Handle: RePEc:pra:mprapa:102926
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    More about this item

    Keywords

    cheaptalk; communication-proofness; renegotiation-proofness; secrethandshake; incomplete information; evolutionary robustness;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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