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Rock–Scissors–Paper and evolutionarily stable strategies

Simon Loertscher ()

Economics Letters, 2013, vol. 118, issue 3, 473-474

Abstract: This paper argues that Rock–Scissors–Paper is a stochastic game with discounting. Provided that the discount factor is less than 1, it has an evolutionarily stable strategy (ESS). This result contrasts with the one-shot normal form game, which is the customary representation of Rock–Scissors–Paper. It reconciles the finding that mutant players who tie against each other forever are never observed in real-world play of Rock–Scissors–Paper with a basic prediction of evolutionary game theory.

Keywords: Rock–Scissors–Paper; ESS; Stochastic games with discounting (search for similar items in EconPapers)
JEL-codes: C72 D72 (search for similar items in EconPapers)
Date: 2013
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