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Communication, coordination and efficiency in evolutionary one-population models

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  • Sjaak Hurkens
  • Karl H. Schlag

Abstract

We analyze the role of commitment in pre-play communication for ensuring efficient evolutionarily stable outcomes in coordination games. All players are a priori identical as they are drawn from the same population. In games where efficient outcomes can be reached by players coordinating on the same action we find commitment to be necessary to enforce efficiency. In games where efficienct outcomes only result from play of different actions, communication without commitment is most effective although efficiency can no longer be guaranteed. Only when there are many messages then inefficient outcomes are negligible as their basins of attraction become very small.

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Bibliographic Info

Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 387.

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Date of creation: Apr 1999
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Handle: RePEc:upf:upfgen:387

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Web page: http://www.econ.upf.edu/

Related research

Keywords: Evolutionarily stable sets; pure coordination; cheap talk;

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  1. Schlag, Karl H., 1999. "Which one should I imitate?," Journal of Mathematical Economics, Elsevier, vol. 31(4), pages 493-522, May.
  2. Karl H. Schlag, . "When Does Evolution Lead to Efficiency in Communication Games?," ELSE working papers 026, ESRC Centre on Economics Learning and Social Evolution.
  3. Balkenborg, Dieter & Karl H. Schlag, 1996. "On the Interpretation of Evolutionary Stable Sets," Discussion Paper Serie B 313, University of Bonn, Germany.
  4. K. Schlag, 2010. "Why Imitate, and if so, How? Exploring a Model of Social Evolution," Levine's Working Paper Archive 454, David K. Levine.
  5. Karl H. Schlag & Dieter Balkenborg, 2001. "Evolutionarily stable sets," International Journal of Game Theory, Springer, vol. 29(4), pages 571-595.
  6. Schlag,Karl, . "Cheap talk and evolutionary dynamics," Discussion Paper Serie B 242, University of Bonn, Germany.
  7. Kim, Yong-Gwan & Sobel, Joel, 1995. "An Evolutionary Approach to Pre-play Communication," Econometrica, Econometric Society, vol. 63(5), pages 1181-93, September.
  8. Matsui, Akihiko, 1992. "Best response dynamics and socially stable strategies," Journal of Economic Theory, Elsevier, vol. 57(2), pages 343-362, August.
  9. Aumann, Robert J. & Sorin, Sylvain, 1989. "Cooperation and bounded recall," Games and Economic Behavior, Elsevier, vol. 1(1), pages 5-39, March.
  10. Karl H. Schlag, . "Why Imitate, and if so, How? A Bounded Rational Approach to Multi- Armed Bandits," ELSE working papers 028, ESRC Centre on Economics Learning and Social Evolution.
  11. Swinkels, Jeroen M., 1992. "Evolutionary stability with equilibrium entrants," Journal of Economic Theory, Elsevier, vol. 57(2), pages 306-332, August.
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Cited by:
  1. Paola Manzini & Abdolkarim Sadrieh & Nicolaas J. Vriend, 2002. "On Smiles, Winks, and Handshakes as Coordination Devices," Working Papers 456, Queen Mary, University of London, School of Economics and Finance.

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