  We propose, develop, and analyze a mathematical model of intergroup attitudes
in a community that is divided between two distinct social groups (which may be
distinguished by religion, ethnicity, or some other socially distinguishing
factor). The model is based on very simple premises that are both intuitive and
justified by sociological research. We investigate the behavior of the model in
various special cases, for various model configurations. We discuss the
stability of the model, and the continuous or discontinuous dependence of model
behavior on various parameters. Finally, we discuss possible implications for
strategies to improve intergroup affinity, and to defuse tension and prevent
deterioration of intergroup relationships.
