Physics – Physics and Society
Scientific paper
2008-12-18
Physics
Physics and Society
6 pages, 5 figures
Scientific paper
In real world, individual rationality varies for the sake of the diversity of people's individuality. In order to investigate how diversity of agent's rationality affects the evolution of cooperation, we introduce the individual rationality proportional to the $\beta$th power of the each agent's degree. Simulation results on heterogeneous scale-free network show that the dynamic process is greatly affected by the diversity of rationality. Both promotion and inhibition of cooperative behavior can be observed at different region of parameter $\beta$. We present explanation to these results by quantitative and qualitative analysis. The nodes with middle degree value are found to play a critical role in the evolutionary processes. The inspiration from our work may provide us a deeper comprehension towards some social phenomenon.
Chen Ya-Zheng
Huang Zeng-Guang
Wang Shun-Jin
Wang Ying-Hai
Zhang Yajing
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