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Communication Can Destroy Common Learning

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  • Jakub Steiner
  • Colin Stewart

Abstract

We show by example that communication can generate a failure of common knowledge acquisition. In the absence of communication, agents acquire approximate common knowledge of some parameter, but with communication they do not.

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Bibliographic Info

Paper provided by University of Toronto, Department of Economics in its series Working Papers with number tecipa-330.

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Length: 11 pages
Date of creation: 27 Aug 2008
Date of revision:
Handle: RePEc:tor:tecipa:tecipa-330

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Keywords: Common knowledge; communication;

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  1. Koessler, Frederic, 2001. "Common knowledge and consensus with noisy communication," Mathematical Social Sciences, Elsevier, vol. 42(2), pages 139-159, September.
  2. Martin W. Cripps & Jeffrey C. Ely & George J. Mailath & Larry Samuelson, 2008. "Common Learning," Econometrica, Econometric Society, vol. 76(4), pages 909-933, 07.
  3. Parikh, Rohit & Krasucki, Paul, 1990. "Communication, consensus, and knowledge," Journal of Economic Theory, Elsevier, vol. 52(1), pages 178-189, October.
  4. Heifetz, Aviad, 1996. "Comment on Consensus without Common Knowledge," Journal of Economic Theory, Elsevier, vol. 70(1), pages 273-277, July.
  5. Monderer, Dov & Samet, Dov, 1989. "Approximating common knowledge with common beliefs," Games and Economic Behavior, Elsevier, vol. 1(2), pages 170-190, June.
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