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Cooperative Behavior and the Frequency of Social Interaction

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  • John Duffy
  • Jack Ochs

Abstract

We report results from an experiment that examines play in an indefinitely repeated, 2-player Prisoner’s Dilemma game. Each experimental session involves N subjects and a sequence of indefinitely repeated games. The main treatment consists of whether agents are matched in fixed pairings or matched randomly in each indefinitely repeated game. Within the random matching treatment, we vary the information that players have about their opponents. Contrary to a theoretical possibility suggested by Kandori (1992), a cooperative norm does not emerge in the treatments where players are matched randomly. On the other hand, in the fixed pairings treatment, the evidence suggests that a cooperative norm does emerge as players gain more experience.

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Bibliographic Info

Paper provided by University of Pittsburgh, Department of Economics in its series Working Papers with number 274.

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Date of creation: Jun 2006
Date of revision: Jul 2008
Handle: RePEc:pit:wpaper:274

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  16. Greif, Avner, 1989. "Reputation and Coalitions in Medieval Trade: Evidence on the Maghribi Traders," The Journal of Economic History, Cambridge University Press, Cambridge University Press, vol. 49(04), pages 857-882, December.
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