Dynamics of two-group conflicts: A statistical physics model

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Abstract

We propose a “social physics” model for two-group conflict. We consider two disputing groups. Each individual i in each of the two groups has a preference s i regarding the way in which the conflict should be resolved. The individual preferences span a range between +M (prone to protracted conflict) and −M (prone to settle the conflict). The noise in this system is quantified by a “social temperature”. Individuals interact within their group and with individuals of the other group. A pair of individuals (i,j) within a group contributes -s i ∗s j to the energy. The inter-group energy of individual i is taken to be proportional to the product between s i and the mean value of the preferences from the other group’s members. We consider an equivalent-neighbor Renyi–Erdos network where everyone interacts with everyone. We present some examples of conflicts that may be described with this model.

Original languageAmerican English
JournalPhysica A: Statistical Mechanics and its Applications
Volume469
DOIs
StatePublished - Mar 1 2017

Keywords

  • Social system
  • Complexity
  • Statistical physics
  • Monte Carlo simulations
  • Networks

Disciplines

  • Urban Studies and Planning
  • Physical Sciences and Mathematics

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