OPINION FORMATION MODELS BASED ON GAME THEORY

Alessandro Di Mare () and Vito Latora ()
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Alessandro Di Mare: Scuola Superiore di Catania, Catania, I-95123, Italy
Vito Latora: Dipartimento di Fisica e Astronomia, Universitá di Catania, and INFN, Sezione di Catania, Catania, I-95123, Italy

International Journal of Modern Physics C (IJMPC), 2007, vol. 18, issue 09, 1377-1395

Abstract: A way to simulate the basic interactions between two individuals with different opinions, in the context of strategic game theory, is proposed. Various games are considered, which produce different kinds of opinion formation dynamics. First, by assuming that all individuals (players) are equals, we obtain the bounded confidence model of continuous opinion dynamics proposed by Deffuantet al.In such a model a tolerance threshold is defined, such that individuals with difference in opinion larger than the threshold can not interact. Then, we consider that the individuals have different inclinations to change opinion and different abilities in convincing the others. In this way, we obtain the so-called "Stubborn individuals and Orators" (SO) model, a generalization of the Deffuantet al.model, in which the threshold tolerance is different for every couple of individuals. We explore, by numerical simulations, the dynamics of the SO model, and we propose further generalizations that can be implemented.

Keywords: Sociophysics; opinion dynamics; game theory (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (12)

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DOI: 10.1142/S012918310701139X

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