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Observability of Partners’ Past Play and Cooperation: Experimental Evidence

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Listed:
  • Kenju Kamei
  • Hajime Kobayashi
  • Tiffany Tsz Kwan Tse

Abstract

The observability of partners’ past play is known to theoretically improve cooperation in an infinitely repeated prisoner’s dilemma game under random matching. This paper presents evidence from an incentivized experiment that reputational information per se may not improve cooperation. A structural estimation suggests that a certain percentage of players act according to the “Always Defect” strategy, whether or not the reputational information is available. The remaining players adopt available cooperative strategies: specifically, the tit-for-tat strategy when reputational information is not available, and a strategy that conditions on the matched partner’s past play when reputational information is available.

Suggested Citation

  • Kenju Kamei & Hajime Kobayashi & Tiffany Tsz Kwan Tse, 2021. "Observability of Partners’ Past Play and Cooperation: Experimental Evidence," ISER Discussion Paper 1145, Institute of Social and Economic Research, Osaka University.
    • Handle: RePEc:dpr:wpaper:1145
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    References listed on IDEAS

    as
    1. Kamei, Kenju, 2017. "Endogenous reputation formation under the shadow of the future," Journal of Economic Behavior & Organization, Elsevier, vol. 142(C), pages 189-204.
    2. Gabriele Camera & Marco Casari, 2018. "Monitoring institutions in indefinitely repeated games," Experimental Economics, Springer;Economic Science Association, vol. 21(3), pages 673-691, September.
    3. Camera, Gabriele & Casari, Marco & Bigoni, Maria, 2012. "Cooperative strategies in anonymous economies: An experiment," Games and Economic Behavior, Elsevier, vol. 75(2), pages 570-586.
    4. Gabriele Camera & Marco Casari, 2009. "Cooperation among Strangers under the Shadow of the Future," American Economic Review, American Economic Association, vol. 99(3), pages 979-1005, June.
    5. Drew Fudenberg & David G. Rand & Anna Dreber, 2012. "Slow to Anger and Fast to Forgive: Cooperation in an Uncertain World," American Economic Review, American Economic Association, vol. 102(2), pages 720-749, April.
    6. Takahashi, Satoru, 2010. "Community enforcement when players observe partners' past play," Journal of Economic Theory, Elsevier, vol. 145(1), pages 42-62, January.
    7. Martin A. Nowak & Karl Sigmund, 1998. "Evolution of indirect reciprocity by image scoring," Nature, Nature, vol. 393(6685), pages 573-577, June.
    8. M.A. Nowak & K. Sigmund, 1998. "Evolution of Indirect Reciprocity by Image Scoring/ The Dynamics of Indirect Reciprocity," Working Papers ir98040, International Institute for Applied Systems Analysis.
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    10. Kenju Kamei & Artem Nesterov, 2020. "Endogenous Monitoring through Gossiping in an Infinitely Repeated Prisoner’s Dilemma Game: Experimental Evidence," Working Papers 2020_02, Durham University Business School.
    11. Stahl, Dale O., 2013. "An experimental test of the efficacy of a simple reputation mechanism to solve social dilemmas," Journal of Economic Behavior & Organization, Elsevier, vol. 94(C), pages 116-124.
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    More about this item

    JEL classification:

    • C92 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Group Behavior
    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D70 - Microeconomics - - Analysis of Collective Decision-Making - - - General

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