dorsal/arxiv
View SchemaThe importance of selection rate in the evolution of cooperation
| Authors | Carlos P. Roca, Jose A. Cuesta, Angel Sanchez |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0512045 |
| URL | https://arxiv.org/abs/q-bio/0512045 |
Abstract
How cooperation emerges in human societies is still a puzzle. Evolutionary game theory has been the standard framework to address this issue. In most models, every individual plays with all others, and then reproduce and die according to what they earn. This amounts to assuming that selection takes place at a slow pace with respect to the interaction time scale. We show that, quite generally, if selection speeds up, the evolution outcome changes dramatically. Thus, in games such as Harmony, where cooperation is the only equilibrium and the only rational outcome, rapid selection leads to dominance of defectors. Similar non trivial phenomena arise in other binary games and even in more complicated settings such as the Ultimatum game. We conclude that the rate of selection is a key element to understand and model the emergence of cooperation, and one that has so far been overlooked.
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"abstract": "How cooperation emerges in human societies is still a puzzle. Evolutionary\ngame theory has been the standard framework to address this issue. In most\nmodels, every individual plays with all others, and then reproduce and die\naccording to what they earn. This amounts to assuming that selection takes\nplace at a slow pace with respect to the interaction time scale. We show that,\nquite generally, if selection speeds up, the evolution outcome changes\ndramatically. Thus, in games such as Harmony, where cooperation is the only\nequilibrium and the only rational outcome, rapid selection leads to dominance\nof defectors. Similar non trivial phenomena arise in other binary games and\neven in more complicated settings such as the Ultimatum game. We conclude that\nthe rate of selection is a key element to understand and model the emergence of\ncooperation, and one that has so far been overlooked.",
"arxiv_id": "q-bio/0512045",
"authors": [
"Carlos P. Roca",
"Jose A. Cuesta",
"Angel Sanchez"
],
"categories": [
"q-bio.PE",
"cond-mat.stat-mech",
"nlin.AO",
"physics.soc-ph",
"q-bio.QM"
],
"title": "The importance of selection rate in the evolution of cooperation",
"url": "https://arxiv.org/abs/q-bio/0512045"
},
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