dorsal/arxiv
View SchemaParticipation costs dismiss the advantage of heterogeneous networks in evolution of cooperation
| Authors | Naoki Masuda |
|---|---|
| Categories | |
| ArXiv ID | physics/0702017 |
| URL | https://arxiv.org/abs/physics/0702017 |
| Journal | Proc. R. Soc. B, 274, 1815-1821 (2007) |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
Real social interactions occur on networks in which each individual is connected to some, but not all, of others. In social dilemma games with a fixed population size, heterogeneity in the number of contacts per player is known to promote evolution of cooperation. Under a common assumption of positively biased payoff structure, well-connected players earn much by playing frequently, and cooperation once adopted by well-connected players is unbeatable and spreads to others. However, maintaining a social contact can be costly, which would prevent local payoffs from being positively biased. In replicator-type evolutionary dynamics, it is shown that even a relatively small participation cost extinguishes the merit of heterogeneous networks in terms of cooperation. In this situation, more connected players earn less so that they are no longer spreaders of cooperation. Instead, those with fewer contacts win and guide the evolution. The participation cost, or the baseline payoff, is irrelevant in homogeneous populations but is essential for evolutionary games on heterogeneous networks.
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"abstract": "Real social interactions occur on networks in which each individual is\nconnected to some, but not all, of others. In social dilemma games with a fixed\npopulation size, heterogeneity in the number of contacts per player is known to\npromote evolution of cooperation. Under a common assumption of positively\nbiased payoff structure, well-connected players earn much by playing\nfrequently, and cooperation once adopted by well-connected players is\nunbeatable and spreads to others. However, maintaining a social contact can be\ncostly, which would prevent local payoffs from being positively biased. In\nreplicator-type evolutionary dynamics, it is shown that even a relatively small\nparticipation cost extinguishes the merit of heterogeneous networks in terms of\ncooperation. In this situation, more connected players earn less so that they\nare no longer spreaders of cooperation. Instead, those with fewer contacts win\nand guide the evolution. The participation cost, or the baseline payoff, is\nirrelevant in homogeneous populations but is essential for evolutionary games\non heterogeneous networks.",
"arxiv_id": "physics/0702017",
"authors": [
"Naoki Masuda"
],
"categories": [
"physics.soc-ph",
"cond-mat.dis-nn"
],
"journal_ref": "Proc. R. Soc. B, 274, 1815-1821 (2007)",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Participation costs dismiss the advantage of heterogeneous networks in evolution of cooperation",
"url": "https://arxiv.org/abs/physics/0702017"
},
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