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Voluntarily Separable Repeated Games with Social Norms


  • Takako Fujiwara-Greve

    (Department of Economics, Keio University)

  • Masahiro Okuno-Fujiwara

    (Faculty of Economics, University of Tokyo)

  • Nobue Suzuki

    (Faculty of Economics, Komazawa University)


We extend the voluntarily separable repeated Prisoner's Dilemma (Fujiwara-Greve and Okuno-Fujiwara, 2009) to continuous actions. We show that there is a (constrained) efficient bimorphic equilibrium which is robust under evolutionary pressure. It consists of a cooperative strategy and a myopic defection strategy so that our model provides a foundation to incomplete information models as well.

Suggested Citation

  • Takako Fujiwara-Greve & Masahiro Okuno-Fujiwara & Nobue Suzuki, 2010. "Voluntarily Separable Repeated Games with Social Norms," CIRJE F-Series CIRJE-F-715, CIRJE, Faculty of Economics, University of Tokyo.
  • Handle: RePEc:tky:fseres:2010cf715

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    References listed on IDEAS

    1. Matsui, Akihiko, 1991. "Cheap-talk and cooperation in a society," Journal of Economic Theory, Elsevier, vol. 54(2), pages 245-258, August.
    2. Rafael Rob & Huanxing Yang, 2010. "Long-term relationships as safeguards," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 43(2), pages 143-166, May.
    3. Takako Fujiwara-Greve & Masahiro Okuno-Fujiwara, 2009. "Voluntarily Separable Repeated Prisoner's Dilemma," Review of Economic Studies, Oxford University Press, vol. 76(3), pages 993-1021.
    4. Swinkels, Jeroen M., 1992. "Evolutionary stability with equilibrium entrants," Journal of Economic Theory, Elsevier, vol. 57(2), pages 306-332, August.
    5. Kranton, Rachel E, 1996. "Reciprocal Exchange: A Self-Sustaining System," American Economic Review, American Economic Association, vol. 86(4), pages 830-851, September.
    6. Okuno-Fujiwara, Masahiro, 1987. "Monitoring cost, agency relationships, and equilibrium modes of labor contracts," Journal of the Japanese and International Economies, Elsevier, vol. 1(2), pages 147-167, June.
    7. Shapiro, Carl & Stiglitz, Joseph E, 1984. "Equilibrium Unemployment as a Worker Discipline Device," American Economic Review, American Economic Association, vol. 74(3), pages 433-444, June.
    8. Kranton, Rachel E, 1996. "The Formation of Cooperative Relationships," Journal of Law, Economics, and Organization, Oxford University Press, vol. 12(1), pages 214-233, April.
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