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No imitation - on local and group interaction, learning and reciprocity in prisoners\

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  • Kirchkamp, Oliver

    ()
    (Sonderforschungsbereich 504)

  • Nagel, Rosemarie

    ()
    (Dep.of Economics, Universitat Pompeu Fabra)

Abstract

This study disentangles experimentally imitation, reinforcement, and reciprocity in repeated prisoners' dilemmas. We compare a simple situation in which players interact only with their neighbours (local interaction) with one where players interact with all members of the population (group interaction). We observe choices under different information conditions and estimate parameters of a learning model. We find that imitation, while assumed to be a driving force in many models of spatial evolution, is often a negligible factor in the experiment. Behaviour is predominantly driven by reinforcement learning.

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Bibliographic Info

Paper provided by Sonderforschungsbereich 504, Universität Mannheim & Sonderforschungsbereich 504, University of Mannheim in its series Sonderforschungsbereich 504 Publications with number 03-04.

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Length: 27 pages
Date of creation: 25 Feb 2003
Date of revision:
Handle: RePEc:xrs:sfbmaa:03-04

Note: Financial support from the Deutsche Forschungsgemeinschaft, SFB 504, at the University of Mannheim and the Spanish DGIC Tecnica PB95-0983is gratefully acknowledged.
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Keywords: Local interaction; experiments; prisoner's dilemma; learning; reinforcement; repeated games;

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  1. Kirchkamp, Oliver, 1996. "Simultaneous Evolution of Learning Rules and Strategies," Discussion Paper Serie B 379, University of Bonn, Germany.
  2. repec:att:wimass:9612 is not listed on IDEAS
  3. Antoni Bosch-Domènech & Nicolaas J. Vriend, 1998. "Imitation of succesful behavior in Cournot markets," Economics Working Papers 269, Department of Economics and Business, Universitat Pompeu Fabra, revised May 1999.
  4. Eshel, I. & Samuelson, L. & Shaked, A., 1996. "Altruists, Egoists and Hooligans in a Local Interaction Model," Working papers, Wisconsin Madison - Social Systems 9612r, Wisconsin Madison - Social Systems.
  5. Glen Ellison, 2010. "Learning, Local Interaction, and Coordination," Levine's Working Paper Archive 391, David K. Levine.
  6. Erev, Ido & Roth, Alvin E, 1998. "Predicting How People Play Games: Reinforcement Learning in Experimental Games with Unique, Mixed Strategy Equilibria," American Economic Review, American Economic Association, vol. 88(4), pages 848-81, September.
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