Heterogeneity of link weight and the evolution of cooperation
Physics and Society
2016-02-17 v3 Social and Information Networks
Populations and Evolution
Abstract
In this paper, we investigate the effect of "heterogeneity of link weight", heterogeneity of the frequency or amount of interactions among individuals, on the evolution of cooperation. Based on an analysis of the evolutionary prisoner's dilemma game on a weighted one-dimensional lattice network with "intra-individual heterogeneity", we confirm that moderate level of link-weight heterogeneity can facilitate cooperation. Furthermore, we identify two key mechanisms by which link-weight heterogeneity promotes the evolution of cooperation: mechanisms for spread and maintenance of cooperation. We also derive the corresponding conditions under which the mechanisms can work through evolutionary dynamics.
Keywords
Cite
@article{arxiv.1507.06746,
title = {Heterogeneity of link weight and the evolution of cooperation},
author = {M. Iwata and E. Akiyama},
journal= {arXiv preprint arXiv:1507.06746},
year = {2016}
}
Comments
35 pages, 37 figures, Submitted to Physica A