Phase diagram of a Schelling segregation model

Abstract

The collective behavior in a variant of Schelling's segregation model is characterized with methods borrowed from statistical physics, in a context where their relevance was not conspicuous. A measure of segregation based on cluster geometry is defined and several quantities analogous to those used to describe physical lattice models at equilibrium are introduced. This physical approach allows to distinguish quantitatively several regimes and to characterize the transitions between them, leading to the building of a phase diagram. Some of the transitions evoke empirical sudden ethnic turnovers. We also establish links with 'spin-1' models in physics. Our approach provides generic tools to analyze the dynamics of other socio-economic systems.

References in corpus (4)

• Glassy dynamics of kinetically constrained models
• Ising, Schelling and Self-Organising Segregation
• Statistical physics of the Schelling model of segregation
• Self-organizing, two-temperature Ising model describing human segregation

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