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Prisoner’s Dilemma and Cooperation

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Encyclopedia of Evolutionary Psychological Science
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Synonyms

Evolution of cooperation; Evolutionary game theory; Social dilemma; Strategies for successful cooperation

Brief Definition

The prisoner’s dilemma (PD) is a two-player game where there is a conflict between individual and group interests. Overall, both players do better if they both cooperate, yet each individual player does better if they defect. However, if both players defect, then they do worse than if they both cooperate, hence the dilemma. This deceptively simple game has been used extensively to explore the conditions under which cooperation can evolve.

Introduction

The widespread evidence for cooperation in the natural world is often seen as an evolutionary puzzle. This is because, all else being equal, it is fitness-enhancing to reap the rewards of others’ cooperation without paying any of the costs. In a group of cooperators who freely help anyone else, selfish strategies possess increased fitness relative to cooperative strategies, and consequently spread through the...

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Correspondence to Daniel Smith .

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Smith, D. (2019). Prisoner’s Dilemma and Cooperation. In: Shackelford, T., Weekes-Shackelford, V. (eds) Encyclopedia of Evolutionary Psychological Science. Springer, Cham. https://doi.org/10.1007/978-3-319-16999-6_3757-2

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  • DOI: https://doi.org/10.1007/978-3-319-16999-6_3757-2

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  • Print ISBN: 978-3-319-16999-6

  • Online ISBN: 978-3-319-16999-6

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Chapter history

  1. Latest

    Prisoner’s Dilemma and Cooperation
    Published:
    25 July 2019

    DOI: https://doi.org/10.1007/978-3-319-16999-6_3757-2

  2. Original

    Prisoner’s Dilemma and Cooperation
    Published:
    29 September 2018

    DOI: https://doi.org/10.1007/978-3-319-16999-6_3757-1