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Testing the TASP: An experimental investigation of learning in games with unstable equilibria

  • Cason, Timothy N.
  • Friedman, Daniel
  • Hopkins, Ed

We report experiments studying mixed strategy Nash equilibria that are theoretically stable or unstable under learning. The Time Average Shapley Polygon (TASP) predicts behavior in the unstable case. We study two versions of Rock-Paper-Scissors that include a fourth strategy, Dumb. The unique Nash equilibrium is identical in the two games, but the predicted frequency of Dumb is much higher in the game where the NE is stable. Consistent with TASP, the observed frequency of Dumb is lower and play is further from Nash in the high payoff unstable treatment. However, Dumb is played too frequently in all treatments.

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Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 145 (2010)
Issue (Month): 6 (November)
Pages: 2309-2331

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Handle: RePEc:eee:jetheo:v:145:y:2010:i:6:p:2309-2331
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/622869

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