Win-stay, lose-shift strategies for repeated games-memory length, aspiration levels and noise.

  title={Win-stay, lose-shift strategies for repeated games-memory length, aspiration levels and noise.},
  author={Martin Posch},
  journal={Journal of theoretical biology},
  volume={198 2},
  • Martin Posch
  • Published 1999 in Journal of theoretical biology
Win-stay, lose-shift, the principle to retain a successful action is a simple and general learning rule that can be applied to all types of repeated decision problems. In this paper I consider win-stay, lose-shift strategies with diverse memory sizes and strategies that adapt their aspiration levels, i.e. the payoff level considered as "success". I study their evolution for the Prisoner's Dilemma, as well as in a rapidly changing environment, where a randomly selected game is assigned to the… CONTINUE READING
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