HETEROGENEOUS ASPIRATIONS PROMOTE COOPERATION IN THE PUBLIC GOODS GAME

作者：Sun, Lei^*; Yang, Han-Xin; Chen, Shao-Min; Chen, Ya-Shan

来源：International Journal of Modern Physics C, 2013, 24(1): 1250089.

DOI：10.1142/S0129183112500891

• PGG
• aspiration
• cooperation

We study the impact of heterogeneous aspirations on the spatial public goods game (PGG) in a square lattice. An aspiration parameter u is introduced to decide who will be more probably to become the potential strategy source in structured population. Individuals are divided into two groups A (u > 0) and B(u = 0) by fraction v and 1 - v. We study how u and v affect cooperation in the PGG. For low values of u, the cooperation level monotonously increases as v increases. However, for large values of u, there exist an intermediate v approximate to 0: 5 for which cooperation thrives best. The influence of noise is also investigated. We find that the highest threshold of phase transition is reached at the middle value of noise.

• 出版日期2013-1
• 单位福州大学