Diversity of reproduction time scale promotes cooperation in spatial prisoner's dilemma games

Details Diversity of reproduction time scale promotes cooperation in spatial prisoner's dilemma games Diversity of reproduction time scale promotes cooperation in spatial prisoner's dilemma games

2009-08-13

arxiv.org/abs/0908.1855v1

Phys.Rev.E 80, 036106 (2009).

Physics

Physics and Society

7 pages, 8 figures

Scientific paper

10.1103/PhysRevE.80.036106

We study an evolutionary spatial prisoner's dilemma game where the fitness of the players is determined by both the payoffs from the current interaction and their history. We consider the situation where the selection timescale is slower than the interaction timescale. This is done by implementing probabilistic reproduction on an individual level. We observe that both too fast and too slow reproduction rates hamper the emergence of cooperation. In other words, there exists an intermediate selection timescale that maximizes cooperation. Another factor we find to promote cooperation is a diversity of reproduction timescales.

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