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Cheap Talk with Correlated Signals

Author

Listed:
  • A.K.S. Chand

    (University of Venice, Italy)

  • Sergio Currarini

    (University of Leicester, University of Venice and CMCC, Italy)

  • Giovanni Ursino

    (Catholic University of Milan, Italy)

Abstract

We consider a game of information transmission, with one informed decision maker gathering information from one or more informed senders. Private information is (conditionally) correlated across players, and communication is cheap talk. For the one sender case, we show that correlation unambiguously tightens the existence conditions for a truth-telling equilibrium. We then generalize the model to an arbitrary number of senders, and we find that, in this case, the effect of correlation on the incentives to report information truthfully is non monotone, and correlation may discipline senders' equilibrium behavior, making it easier to sustain truth-telling.

Suggested Citation

  • A.K.S. Chand & Sergio Currarini & Giovanni Ursino, 2013. "Cheap Talk with Correlated Signals," Working Papers 2013.77, Fondazione Eni Enrico Mattei.
    • Handle: RePEc:fem:femwpa:2013.77
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    References listed on IDEAS

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    5. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-1451, November.
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    More about this item

    Keywords

    Cheap Talk; Multiple Senders; Correlation;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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