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The (non-) robustness of influential cheap talk equilibria

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  • Diehl, Christoph

    (Center for Mathematical Economics, Bielefeld University)

  • Kuzmics, Christoph

    (Center for Mathematical Economics, Bielefeld University)

Abstract

Chakraborty and Harbaugh (2010) prove the existence of influential cheap talk equilibria in one sender one receiver games when the state is multidimensional and the preferences of the sender are state-independent. We show that only the babbling equilibrium survives the introduction of any small degree of uncertainty about the sender’s preferences in the spirit of Harsanyi (1973). None of the influential equilibria are robust to this kind of uncertainty.

Suggested Citation

  • Diehl, Christoph & Kuzmics, Christoph, 2014. "The (non-) robustness of influential cheap talk equilibria," Center for Mathematical Economics Working Papers 489, Center for Mathematical Economics, Bielefeld University.
    • Handle: RePEc:bie:wpaper:489
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    File URL: https://pub.uni-bielefeld.de/download/2700696/2901858
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    References listed on IDEAS

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    1. Dirk Bergemann & Stephen Morris, 2012. "Robust Mechanism Design," World Scientific Book Chapters, in: Robust Mechanism Design The Role of Private Information and Higher Order Beliefs, chapter 2, pages 49-96, World Scientific Publishing Co. Pte. Ltd..
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      • Archishman Chakraborty & Rick Harbaugh, 2006. "Persuasion by Cheap Talk," Working Papers 2006-10, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy, revised Oct 2009.
    3. Goltsman, Maria & Hörner, Johannes & Pavlov, Gregory & Squintani, Francesco, 2009. "Mediation, arbitration and negotiation," Journal of Economic Theory, Elsevier, vol. 144(4), pages 1397-1420, July.
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    5. Morgan, John & Stocken, Phillip C, 2003. "An Analysis of Stock Recommendations," RAND Journal of Economics, The RAND Corporation, vol. 34(1), pages 183-203, Spring.
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    Cited by:

    1. Miura, Shintaro & Yamashita, Takuro, 2018. "Divergent Interpretation and Divergent Prediction in Communication," TSE Working Papers 18-939, Toulouse School of Economics (TSE).

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