Randomness enhances cooperation: A resonance-type phenomenon in evolutionary games

Ren, Jie; Wang, Wen-Xu; Qi, Feng

doi:10.1103/PhysRevE.75.045101

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Journal article

Randomness enhances cooperation: A resonance-type phenomenon in evolutionary games

Ren, Jie Department of Physics, University of Fribourg, Switzerland
Wang, Wen-Xu Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR, China
Qi, Feng Biotechnology and Bioengineering Center and Department of Physiology, Medical College of Wisconsin, Milwaukee, USA

02.04.2007

Published in:

Physical Review E. - 2007, vol. 75, p. 045101

English We investigate the effect of randomness in both relationships and decisions on the evolution of cooperation. Simulation results show, in such randomness' presence, the system evolves more frequently to a cooperative state than in its absence. Specifically, there is an optimal amount of randomness, which can induce the highest level of cooperation. The mechanism of randomness promoting cooperation resembles a resonancelike fashion, which could be of particular interest in evolutionary game dynamics in economic, biological, and social systems.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language