Costly punishment does not always increase cooperation

  • Jia-Jia Wua, Yi Taoa
  • Published 2009


In a pairwise interaction, an individual who uses costly punishment must pay a cost in order that the opponent incurs a cost. It has been argued that individuals will behave more cooperatively if they know that their opponent has the option of using costly punishment. We examined this hypothesis by conducting two repeated two-player Prisoner’s Dilemma… (More)


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