Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15476
Title: Mutual punishment promotes cooperation in the spatial public goods game
Authors: Yang, HX
Rong, Z
Keywords: Cooperation
Public goods game
Punishment
Issue Date: 2015
Publisher: Pergamon Press
Source: Chaos, solitons and fractals, 2015, v. 77, 7696, p. 230-234 How to cite?
Journal: Chaos, solitons and fractals 
Abstract: Abstract Punishment has been proved to be an effective mechanism to sustain cooperation among selfish individuals. In previous studies, punishment is unidirectional: an individual i can punish j but j cannot punish i. In this paper, we propose a mechanism of mutual punishment, in which the two individuals will punish each other if their strategies are different. Because of the symmetry in imposing the punishment, one might expect intuitively the strategy to have little effect on cooperation. Surprisingly, we find that the mutual punishment can promote cooperation in the spatial public goods game. Other pertinent quantities such as the time evolution of cooperator density and the spatial distribution of cooperators and defectors are also investigated.
URI: http://hdl.handle.net/10397/15476
ISSN: 0960-0779
EISSN: 1873-2887
DOI: 10.1016/j.chaos.2015.06.002
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