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Signaling Without Common Prior: An Experiment

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Author Info
Michalis Drouvelis
Wieland Muller
Alex Possajennikov

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Abstract

The common prior assumption is pervasive in game-theoretic models with incomplete information. This paper investigates experimentally the importance of inducing a common prior in a two-person signaling game. For a specific probability distribution of the sender's type, the long-run behavior without an induced common prior is shown to be different from the behavior when a common prior is induced, while for other distributions behavior is similar under both regimes. We also present a learning model that allows players to learn about the other players' strategies and the prior distribution of the sender's type. We show that this learning model accurately accounts for all main features of the data.

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Paper provided by Department of Economics, University of York in its series Discussion Papers with number 09/08.

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Date of creation: Apr 2009
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Handle: RePEc:yor:yorken:09/08

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  1. Dekel, Eddie & Fudenberg, Drew & Levine, David K., 2004. "Learning to play Bayesian games," Games and Economic Behavior, Elsevier, vol. 46(2), pages 282-303, February. [Downloadable!] (restricted)
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  2. Costa-Gomes, Miguel & Crawford, Vincent P & Broseta, Bruno, 2001. "Cognition and Behavior in Normal-Form Games: An Experimental Study," Econometrica, Econometric Society, vol. 69(5), pages 1193-1235, September.
    Other versions:
  3. David J. Cooper & Susan Garvin & John H. Kagel, 1997. "Signalling and Adaptive Learning in an Entry Limit Pricing Game," RAND Journal of Economics, The RAND Corporation, vol. 28(4), pages 662-683, Winter. [Downloadable!] (restricted)
  4. Guth, Werner & Ivanova-Stenzel, Radosveta, 2003. "Asymmetric auction experiments with(out) commonly known beliefs," Economics Letters, Elsevier, vol. 80(2), pages 195-199, August. [Downloadable!] (restricted)
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  5. Banks Jeffrey & Camerer Colin & Porter David, 1994. "An Experimental Analysis of Nash Refinements in Signaling Games," Games and Economic Behavior, Elsevier, vol. 6(1), pages 1-31, January. [Downloadable!] (restricted)
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  6. Brandts, Jordi & Holt, Charles A, 1992. "An Experimental Test of Equilibrium Dominance in Signaling Games," American Economic Review, American Economic Association, vol. 82(5), pages 1350-65, December. [Downloadable!] (restricted)
  7. Greiner, Ben, 2004. "An Online Recruitment System for Economic Experiments," MPRA Paper 13513, University Library of Munich, Germany. [Downloadable!]
  8. Brandts, Jordi & Holt, Charles A, 1993. "Adjustment Patterns and Equilibrium Selection in Experimental Signaling Games," International Journal of Game Theory, Springer, vol. 22(3), pages 279-302.
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This page was last updated on 2009-11-25.

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