Evolution of Cooperation among Mobile Agents
Abstract
We study the effects of mobility on the evolution of cooperation among mobile players, which imitate collective motion of biological flocks and interact with neighbors within a prescribed radius . Adopting the prisoner's dilemma game and the snowdrift game as metaphors, we find that cooperation can be maintained and even enhanced for low velocities and small payoff parameters, when compared with the case that all agents do not move. But such enhancement of cooperation is largely determined by the value of , and for modest values of , there is an optimal value of velocity to induce the maximum cooperation level. Besides, we find that intermediate values of or initial population densities are most favorable for cooperation, when the velocity is fixed. Depending on the payoff parameters, the system can reach an absorbing state of cooperation when the snowdrift game is played. Our findings may help understanding the relations between individual mobility and cooperative behavior in social systems.
Cite
@article{arxiv.1006.0772,
title = {Evolution of Cooperation among Mobile Agents},
author = {Zhuo Chen and Jian-Xi Gao and Yun-Ze Cai and Xiao-Ming Xu},
journal= {arXiv preprint arXiv:1006.0772},
year = {2011}
}
Comments
15 pages, 5 figures