Document Detail

Degree mixing in multilayer networks impedes the evolution of cooperation.
MedLine Citation:
PMID:  25353850     Owner:  NLM     Status:  Publisher    
Traditionally, the evolution of cooperation has been studied on single, isolated networks. Yet a player, especially in human societies, will typically be a member of many different networks, and those networks will play different roles in the evolutionary process. Multilayer networks are therefore rapidly gaining on popularity as the more apt description of a networked society. With this motivation, we here consider two-layer scale-free networks with all possible combinations of degree mixing, wherein one network layer is used for the accumulation of payoffs and the other is used for strategy updating. We find that breaking the symmetry through assortative mixing in one layer and/or disassortative mixing in the other layer, as well as preserving the symmetry by means of assortative mixing in both layers, impedes the evolution of cooperation. We use degree-dependent distributions of strategies and cluster-size analysis to explain these results, which highlight the importance of hubs and the preservation of symmetry between multilayer networks for the successful resolution of social dilemmas.
Zhen Wang; Lin Wang; Matjaž Perc
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-27
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  89     ISSN:  1550-2376     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-10-29     Completed Date:  -     Revised Date:  2014-10-30    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  052813     Citation Subset:  -    
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