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Two-Speed Evolution of Strategies and Preferences In Symmetric Games

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  • Alex Possajennikov

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Abstract

Agents in a large population are randomly matched to play a certain game, payoffs in which represent fitness. Agents may have preferences that are different from fitness. They learn strategies according to their preferences, and evolution changes the preference distribution in the population according to fitness. When agents know the preferences of the opponent in a match, only efficient symmetric strategy profiles of the fitness game can be stable. When agents do not know the preferences of the opponent, only Nash equilibria of the fitness game can be stable. For 2 × 2 symmetric games I characterize preferences that are stable. Copyright Springer 2004

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File URL: http://hdl.handle.net/10.1007/s11238-005-0282-z
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Bibliographic Info

Article provided by Springer in its journal Theory and Decision.

Volume (Year): 57 (2004)
Issue (Month): 3 (November)
Pages: 227-263

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Handle: RePEc:kap:theord:v:57:y:2004:i:3:p:227-263

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Web page: http://www.springerlink.com/link.asp?id=100341

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Keywords: Evolutionary stability; Symmetric games; Two-speed evolution;

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  1. Possajennikov, Alex, 2002. "Cooperative Prisoners and Aggressive Chickens: Evolution of Strategies and Preferences in 2x2 Games," Sonderforschungsbereich 504 Publications 02-04, Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim.
  2. Possajennikov, Alex, 2000. "On the evolutionary stability of altruistic and spiteful preferences," Journal of Economic Behavior & Organization, Elsevier, vol. 42(1), pages 125-129, May.
  3. Bolle, Friedel, 2000. "Is altruism evolutionarily stable? And envy and malevolence?: Remarks on Bester and Guth," Journal of Economic Behavior & Organization, Elsevier, vol. 42(1), pages 131-133, May.
  4. Werner Güth & Hartmut Kliemt & Bezalel Peleg, 2000. "Co-evolution of Preferences and Information in Simple Games of Trust," German Economic Review, Verein für Socialpolitik, vol. 1(1), pages 83-110, 02.
  5. Kliemt, Hartmut, 2001. "Rationality and Reality," Kyklos, Wiley Blackwell, vol. 54(2-3), pages 309-16.
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Cited by:
  1. Possajennikov, Alex, 2002. "Cooperative Prisoners and Aggressive Chickens: Evolution of Strategies and Preferences in 2x2 Games," Sonderforschungsbereich 504 Publications 02-04, Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim.
  2. Schipper, Burkhard C., 2005. "The Evolutionary Stability of Optimism, Pessimism and Complete Ignorance," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 68, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.

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