Effects of Inertia on Evolutionary Prisoner's Dilemma Game

Considering the inertia of individuals in real life, we propose a modified Fermi updating rule, where the inertia of players is introduced into evolutionary prisoner's dilemma game (PDG) on square lattices. We mainly focus on how the inertia affects the cooperative behavior of the system. Inter...

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Bibliographic Details
Published in:Communications in theoretical physics 2012-09, Vol.58 (3), p.451-455
Main Authors: Du, Wen-Bo, Cao, Xian-Bin, Liu, Run-Ran, Wang, Zhen
Format: Article
Language:English
Subjects:
Cooperation
Evolutionary
Games
Inertia
Lattices
Noise
Players
Strategy
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Summary:Considering the inertia of individuals in real life, we propose a modified Fermi updating rule, where the inertia of players is introduced into evolutionary prisoner's dilemma game (PDG) on square lattices. We mainly focus on how the inertia affects the cooperative behavior of the system. Interestingly, we find that the cooperation level has a nonmonotonic dependence on the inertia: with small inertia, cooperators will soon be invaded by defectors; with large inertia, players are unwilling to change their strategies and the cooperation level remains the same as the initial state; while a moderate inertia can induce the highest cooperation level. Moreover, effects of environmental noise and individual inertia are studied. Our work may be helpful in understanding the emergence and persistence of cooperation in nature and society.
ISSN:0253-6102
DOI:10.1088/0253-6102/58/3/23