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Cycles of Conditional Cooperation in a Real-Time Voluntary Contribution Mechanism

  • M. Vittoria Levati

    (Max Planck Institute of Economics, Kahlaische Strasse 10, D-07745 Jena, Germany)

  • Ro’i Zultan


    (Department of Cognitive, Perceptual and Brain Sciences, University College London, 26 Bedford Way, London WC1H 0AP, UK)

This paper provides a new way to identify conditional cooperation in a real-time version of the standard voluntary contribution mechanism. We define contribution cycles as the number of contributors a player waits for before committing to a further contribution, and use a permutation test on contribution cycles to assign a measure of conditional cooperation to each group play. The validity of the measures is tested in an experiment. We find that roughly 20% of the plays exhibit dynamics of conditional cooperation. Moreover, notwithstanding a decline in contributions, conditional cooperation is found to be stable over time.

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Article provided by MDPI, Open Access Journal in its journal Games.

Volume (Year): 2 (2011)
Issue (Month): 1 (January)
Pages: 1-15

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Handle: RePEc:gam:jgames:v:2:y:2011:i:1:p:1-15:d:10959
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