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Imitation, Local Interactions and Efficiency
Economics Letters (2006)
  • Carlos Alós-Ferrer, University of Konstanz
  • Simon Weidenholzer, University of Vienna

We consider a model of evolution and local interactions in a circular city as in Ellison (1993) [Ellison, G., 1993. Learning, Local Interaction, and Coordination. Econometrica 61, 1047-1071], where agents follow imitation rules rather than myopic best-response. If interaction is limited to the two immediate neighbors, in the short run the process has a large number of absorbing states where both equilibria coexist, but risk-dominant equilibria are selected in the long run. Contrary to Ellison's model, though, payoff-efficient equilibria, and not risk-dominant ones, might be uniquely selected in the long run when players interact with neighbors further away.

  • Learning,
  • Networks,
  • Risk dominance
Publication Date
Citation Information
Carlos Alós-Ferrer and Simon Weidenholzer. "Imitation, Local Interactions and Efficiency" Economics Letters Vol. 93 Iss. 2 (2006)
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