✦ LIBER ✦

Opinion-structure changes in non-equilibrium model of social impact

✍ Scribed by Andrzej Janutka; Piotr Magnuszewski

Book ID: 102124226
Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 149 KB
Volume: 15
Category: Article
ISSN: 1076-2787
DOI: 10.1002/cplx.20310

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

We study relaxational dynamics of social systems within a kinetic binary‐choice (Ising‐like) model. On the basis of the assumptions of the deterministic social‐impact model in discrete time introduced by Nowak et al. (Psychol Rev 1990, 97, 362), we construct a probabilistic, continuous‐time description. Although there are no stationary (equilibrium) solutions of the model in general, the presence of strong leaders maintaining their opinions for a long‐time and strongly influencing other individuals leads to quasi‐stable (steady‐state) solutions. Analyzing closed individual chains, we discuss changes of the individual‐opinion structure while varying a global parameter of the model. Such a kind of a “critical” behaviour is possible although there is no true phase equilibrium. © 2010 Wiley Periodicals, Inc. Complexity, 2010

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