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Heterogeneity of link weight and the evolution of cooperation
July 24, 2015 Β· Declared Dead Β· π arXiv.org
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Authors
M. Iwata, E. Akiyama
arXiv ID
1507.06746
Category
physics.soc-ph
Cross-listed
cs.SI,
q-bio.PE
Citations
26
Venue
arXiv.org
Last Checked
3 months ago
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.
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