2009, English, Article edition: Cycles of cooperation and free-riding in social systems Ma, Yiping; Gonçalves, Sebastian; Mignot, Sylvain; ...

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Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Cycles of cooperation and free-riding in social systems
Author
  • Ma, Yiping
  • Gonçalves, Sebastian
  • Mignot, Sylvain
  • Nadal, Jean-Pierre
  • Gordon, Mirta B.
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • Basic evidences on non-profit making and other forms of benevolent-based organizations reveal a rough partition of members between somepure consumers of the public good (free-riders) and benevolent individuals (cooperators). We study the relationship between the community size and the level of cooperation in a simple model where the utility of joining the community is proportional to its size. We assume an idiosyncratic willingness to join the community ; cooperation bears a fixed cost while free-riding bears a (moral) idiosyncratic cost proportional to the fraction of cooperators. We show that the system presents two types of equilibria: fixed points (Nash equilibria) with a mixture of cooperators and free-riders and cycles where the size of the community, as well as the proportion of cooperators and free-riders, vary periodically.
  • HAL:hal-00349642, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00349642/​en/​
Language
  • English
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