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Strategy evolution on dynamic networks
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DOI：10.1038/s43588-023-00509-z.png)
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Models of strategy evolution on static networks help us understand how population structure can promote the spread of traits like cooperation. One key mechanism is the formation of altruistic spatial clusters, where neighbors of a cooperative individual are likely to reciprocate, which protects prosocial traits from exploitation. However, most real-world interactions are ephemeral and subject to exogenous restructuring, so that social networks change over time. Strategic behavior on dynamic networks is difficult to study, and much less is known about the resulting evolutionary dynamics. Here we provide an analytical treatment of cooperation on dynamic networks, allowing for arbitrary spatial and temporal heterogeneity. We show that transitions among a large class of network structures can favor the spread of cooperation, even if each individual social network would inhibit cooperation when static. Furthermore, we show that spatial heterogeneity tends to inhibit cooperation, whereas temporal heterogeneity tends to promote it. Dynamic networks can have profound effects on the evolution of prosocial traits, even when individuals have no agency over network structures.
Keyword:
COMMUNITY STRUCTURE
SOCIAL NETWORKS
COOPERATION
EMERGENCE
SELECTION
BEHAVIOR
期刊
IF:
18.3
论文数:
3.1K
被引数:
4.0K
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Humans display a 'cooperative phenotype' that is domain general and temporally stable.png)
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