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dc.contributor.authorGallo, Edoardoen_US
dc.date.accessioned2011-12-15T11:34:21Z-
dc.date.available2011-12-15T11:34:21Z-
dc.date.issued2009en_US
dc.identifier.urihttp://hdl.handle.net/10419/53389-
dc.description.abstractMany social networks have the following properties: (i) a short average distance between any two individuals; (ii) a high clustering coefficient; (iii) segregation patterns; the presence of (iv) brokers and (v) hubs. (i) and (ii) define a small world network. This paper develops a strategic network formation model where agents have heterogeneous knowledge of the network: cognizant agents know the whole network, while ignorant ones are less knowledgeable. For a broad range of parameters, all pairwise Nash (PN) networks have properties (i)-(iv). There are some PN networks with one hub. Cognizant agents have higher betweenness centrality: they are the brokers who connect different parts of the network. Ignorant agents cause the emergence of segregation patterns. The results are robust to varying the number of cognizant agents and to increasing the knowledge level of ignorant ones. An application shows the relevance of the results to assessing the welfare impact of an increase in network knowledge due to, e.g., improved access to social networking tools.en_US
dc.language.isoengen_US
dc.publisherFondazione Eni Enrico Mattei Milanoen_US
dc.relation.ispartofseriesNota di lavoro // Fondazione Eni Enrico Mattei: Sustainable development 34.2009en_US
dc.subject.jelC72en_US
dc.subject.jelD85en_US
dc.subject.ddc330en_US
dc.subject.keywordNetworken_US
dc.subject.keywordCognitive Networken_US
dc.subject.keywordSmall Worlden_US
dc.subject.keywordBrokeren_US
dc.subject.keywordSegregationen_US
dc.titleSmall world networks with segregation patterns and brokersen_US
dc.typeWorking Paperen_US
dc.identifier.ppn645057843en_US
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen_US
Appears in Collections:FEEM Working Papers, Fondazione Eni Enrico Mattei

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