Agent-Based Modelling of Collective Identity: Testing Constructivist Theory

Ian Lustick ()
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Ian Lustick: http://www.polisci.upenn.edu/index.php?option=com_content&task=view&id=25&Itemid=26

Journal of Artificial Societies and Social Simulation, 2000, vol. 3, issue 1, 1

Abstract: Agent-based modeling is an alternative and complementary approach to the study of political identities, including ethnicity and nationalism. By generating many runs with different initial conditions large data sets of virtual histories can be accumulated. This paper presents the ABIR (Agent-Based Identity Repertoire) model which seeks to refine, elaborate, and test constructivist theories of identity and identity change. In this model agents with activated identities interact on a landscape. These agents have repertoires of latent identities. A simple set of micro rules, conforming to constructivist theory's standard propositions about the fluidity, multiplicity, and institutionalizability of identities, as well as their responsiveness to changing incentive structures, determines in any particular interaction what identities will be activated, deactivated, or maintained. Macro-patterns that emerge from these myriad micro-interactions can then be systematically studied. Experiments reported in this paper focus how variation in the size of agent repertoires can affect tension reduction and aggregation across the landscape. Results suggest that tipping and cascade effects are much more likely when a small number of exclusivist identities are present in a population.

Keywords: Agent-Based Modeling; Identity; Constructivism (search for similar items in EconPapers)
Date: 2000-01-31
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