naa a22 4500 528784994 20180924065518.0 cr unu---uuuuu 180924e20080402xx s 000 0 eng 10.3929/ethz-b-000012319 doi 10.1371/journal.pone.0001892 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/12319 Lonzano Sergi Mesoscopic Structure Conditions the Emergence of Cooperation on Social Networks [Elektronische Daten] [Sergi Lonzano, Alex Arenas, Angel Sánchez] PLoS ONE Open access ethresearch Background We study the evolutionary Prisoner's Dilemma on two social networks substrates obtained from actual relational data. Methodology/Principal Findings We find very different cooperation levels on each of them that cannot be easily understood in terms of global statistical properties of both networks. We claim that the result can be understood at the mesoscopic scale, by studying the community structure of the networks. We explain the dependence of the cooperation level on the temptation parameter in terms of the internal structure of the communities and their interconnections. We then test our results on community-structured, specifically designed artificial networks, finding a good agreement with the observations in both real substrates. Conclusion Our results support the conclusion that studies of evolutionary games on model networks and their interpretation in terms of global properties may not be sufficient to study specific, real social systems. Further, the study allows us to define new quantitative parameters that summarize the mesoscopic structure of any network. In addition, the community perspective may be helpful to interpret the origin and behavior of existing networks as well as to design structures that show resilient cooperative behavior. Creative Commons Attribution 3.0 Unported http://creativecommons.org/licenses/by/3.0 ethresearch Arenas Alex joint author Sánchez Angel joint author PLoS ONE Lawrence : PubMed Central 3 (4), p. e1892 1932-6203 http://hdl.handle.net/20.500.11850/12319 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/12319 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 100 1- Lonzano Sergi ETHRESEARCH 700 1- Arenas Alex joint author ETHRESEARCH 700 1- Sánchez Angel joint author ETHRESEARCH 773 0- PLoS ONE Lawrence : PubMed Central 3 (4), p. e1892 1932-6203 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access