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25 September 2022
 
  » arxiv » physics/0504174

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Evolutionary prisoner's dilemma game with dynamic preferential selection
Zhi-Xi Wu ; Xin-Jian Xu ; Sheng-Jun Wang ; Ying-Hai Wang ;
Date 25 Apr 2005
Subject Physics and Society | physics.soc-ph
AbstractA modified prisoner’s dilemma game is numerically investigated on disordered square lattices characterized by a $phi$ portion of random rewired links with four fixed number of neighbors of each site. The players interacting with their neighbors can either cooperate or defect and update their states by choosing one of the neighboring and adopting its strategy with a probability depending on the payoff difference. The selection of the neighbor obeys a dynamic preferential rule: the more frequency a neighbor’s strategy was adopted in the previous rounds, the larger probability it was picked. It is found that this simple rule can promote greatly the cooperation of the whole population with disordered spatial distribution. Dynamic preferential selection are necessary to describe evolution of a society whose actions may be affected by the results of former actions of the individuals in the society. Thus introducing such selection rule helps to model dynamic aspects of societies.
Source arXiv, physics/0504174
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