Segregation in Networks
AbstractSchelling (1969, 1971, 1971, 1978) considered a simple model with individual agents who only care about the types of people living in their own local neighborhood. The spatial structure was represented by a one- or two-dimensional lattice. Schelling showed that an integrated society will generally unravel into a rather segregated one even though no individual agent strictly prefers this. We make a first step to generalize the spatial proximity model to a proximity model of segregation. That is, we examine models with individual agents who interact 'locally' in a range of network structures with topological properties that are different from those of regular lattices. Assuming mild preferences about with whom they interact, we study best-response dynamics in random and regular non-directed graphs as well as in small-world and scale-free networks. Our main result is that the system attains levels of segregation that are in line with those reached in the lattice-based spatial proximity model. In other words, mild proximity preferences can explain segregation not just in regular spatial networks but also in more general social networks. Furthermore, segregation levels do not dramatically vary across different network structures. That is, Schelling's original results seem to be robust also to the structural properties of the network.
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Bibliographic InfoPaper provided by Queen Mary, University of London, School of Economics and Finance in its series Working Papers with number 549.
Date of creation: Nov 2005
Date of revision:
Spatial proximity model; Social segregation; Schelling; Proximity preferences; Social networks; Undirected graphs; Best-response dynamics;
Find related papers by JEL classification:
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
- D62 - Microeconomics - - Welfare Economics - - - Externalities
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-12-09 (All new papers)
- NEP-NET-2005-12-09 (Network Economics)
- NEP-SOC-2005-12-09 (Social Norms & Social Capital)
- NEP-URE-2005-12-09 (Urban & Real Estate Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Federico Echenique & Roland G. Fryer Jr., 2005.
"On the Measurement of Segregation,"
Labor and Demography
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