Reciprocity: weak or strong? What punishment experiments do (and do not) demonstrate.

@article{Guala2012ReciprocityWO,
  title={Reciprocity: weak or strong? What punishment experiments do (and do not) demonstrate.},
  author={Francesco Guala},
  journal={The Behavioral and brain sciences},
  year={2012},
  volume={35 1},
  pages={1-15}
}
Economists and biologists have proposed a distinction between two mechanisms--"strong" and "weak" reciprocity--that may explain the evolution of human sociality. Weak reciprocity theorists emphasize the benefits of long-term cooperation and the use of low-cost strategies to deter free-riders. Strong reciprocity theorists, in contrast, claim that cooperation in social dilemma games can be sustained by costly punishment mechanisms, even in one-shot and finitely repeated games. To support this… CONTINUE READING