Behavioral and Topological Heterogeneities in Network Versions of Schelling’s Segregation Model

Will Deter and Hiroki Sayama

Complexity, 2025, vol. 2025, 1-14

Abstract: Agent-based models of residential segregation have been of persistent interest to various research communities since their origin with James Sakoda and popularization by Thomas Schelling. Frequently, these models have sought to elucidate the extent to which the collective dynamics of individual preferences may cause segregation to emerge. This open question has sustained relevance in U.S. jurisprudence. Previous investigation that incorporated heterogeneity of behaviors (preferences) showed reductions in segregation. Meanwhile, previous investigation that incorporated heterogeneity of social network topologies showed no significant impact to observed segregation levels. In the present study, we examined the effects of the concurrent presence of both behavioral and topological heterogeneities in network segregation models. Simulations were conducted using both homogeneous and heterogeneous preference models on 2D lattices with varied levels of densification to create topological heterogeneities (i.e., clusters and hubs). Results show a richer variety of outcomes, including novel differences in resultant segregation levels and hub composition. Notably, with concurrent increased representations of heterogeneous preferences and heterogeneous topologies, reduced levels of segregation emerge. Simultaneously, we observe a novel dynamic of segregation between tolerance levels as highly tolerant nodes take residence in dense areas and push intolerant nodes to sparse areas mimicking the urban–rural divide.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:1260708

DOI: 10.1155/cplx/1260708

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