Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
976248 | Physica A: Statistical Mechanics and its Applications | 2010 | 10 Pages |
Abstract
We study how initial network structure affects the evolution of cooperation in a spatial prisoner's dilemma game. The network structure is characterized by various statistical properties. Among those properties, we focus on the variance of the degree distribution, and inquire how it affects the evolution of cooperation by three methods of imitation. For every method, it was found that a scale-free network does not always promote the evolution of cooperation, and that there exists an appropriate value of the variance, at which cooperation is optimal.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Ei Tsukamoto, Susumu Shirayama,