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dc.contributor.authorTanimura, Emilyen_US
dc.date.accessioned2010-12-22T10:42:40Z-
dc.date.available2010-12-22T10:42:40Z-
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/10419/43476-
dc.description.abstractWhich types of networks favor the diffusion of innovations in the sense that an innovation whose intrinsic benefits are greater than those of an established choice will be able to replace the latter when it is initially used only by a small fraction of a large population? For deterministic and regular networks there are characterizations, based on a coordination game model of the diffusion of innovations. Here we study this question for a class of irregular random networks, Small world networks, which are of interest as more realistic models of social networks. We consider a random graph model based on a community structure, in which the choice of a parameter allows us to obtain as special cases several well known models, in particular Watts' Small world. We show that there are different types of Small World graphs some which favor diffusion, others that do not. Our study suggests that the kinds of ties that exist between different communities of an individual play an important role. We interpret Watts' Small World as one with high correlation between social spheres of individuals and favorable to diffusion. In other Small Worlds where the communities of individuals are uncorrelated diffusion succeeds only for very large payoff benefits in favor of the innovation.en_US
dc.language.isoengen_US
dc.publisherFondazione Eni Enrico Mattei (FEEM) Milanoen_US
dc.relation.ispartofseriesNota di lavoro // Fondazione Eni Enrico Mattei: Sustainable development 2010,126en_US
dc.subject.jelD85en_US
dc.subject.ddc330en_US
dc.subject.keywordDiffiusion of innovationsen_US
dc.subject.keywordSmall World Networksen_US
dc.subject.keywordContagion Thresholden_US
dc.subject.keywordCommunity Structureen_US
dc.subject.keywordSocial Networksen_US
dc.titleDiffusion of innovations on community based small worlds: the role of correlation between social spheresen_US
dc.typeWorking Paperen_US
dc.identifier.ppn641172117en_US
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen_US
Appears in Collections:FEEM Working Papers, Fondazione Eni Enrico Mattei

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