Analyzing Cooperation Dynamics of Group Interaction on Two Kinds of Scale-Free Networks

摘要

Based on the celebrated public goods game with group interaction, we study the evolution of cooperation on two kinds of scale-free networks with similar degree distribution and clustering coefficient. It is showed that there are different evolution routes in the structured population. The metric clusters existing on the popularity-similarity network let cooperation diffuse in local regions. Whereas, cooperators on the clustered scale-free network tend to invade hubs firstly, and then spread from hubs to leaves with a top-down pattern, which leads to the higher cooperation level on the clustered scale-free network than that on the popularity-similarity network.