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Indexed by:会议论文

Date of Publication:2014-05-30

Included Journals:EI、Scopus

Volume:602-605

Page Number:3783-3786

Abstract:In this paper, basing on the prisoner's dilemma model proposed by M.A.Nowak, we present a model to research the action of temptation to defect in prison's dilemma model. Firstly, we determine whether a player changes its strategy depends on a Fermi equation which is related to the payoffs of the player and its neighbors. If the player changes its strategy next time step, it will select the strategy adopted by the one who gets the highest payoff among its neighbors as its own strategy. Form the results we find that when four neighbors are considered, the density of cooperators will present a downtrend. Well, when eight neighbors are considered, the density of cooperators will decline at the beginning and increase suddenly afterwards. When twelve neighbors are considered, if the density of cooperators is reduced to zero, cooperation will appear again. Thus, the increase of temptation to defect may promote cooperation. ? (2014) Trans Tech Publications, Switzerland.