Sanctions triggered by jealousy help promote the cooperation in spatial prisoner's dilemma games

Ryo Matsuzawa and Jun Tanimoto

Chaos, Solitons & Fractals, 2018, vol. 110, issue C, 239-243

Abstract: Human beings have a natural tendency to feel jealous of those who have more than themselves. A previous report found that harmful behavior stemming from jealousy can actually encourage cooperation. The present study considers the efficiency of jealousy-motivated sanctions and the appropriate balance of sanctions and enforcement costs to best encourage cooperation. Through a series of numerical simulations of a spatial prisoner's dilemma game, we find that in the case of a lattice population structure, stronger sanctions and higher sanction efficiency ultimately result in more robust cooperation. In contrast, in the case of a scale-free population structure, higher sanction costs cause the cooperation level to rise.

Keywords: Punishment; Sanction with jealousy; Prisoner's dilemma (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:110:y:2018:i:c:p:239-243

DOI: 10.1016/j.chaos.2018.03.029

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