Computer Simulations of Opinions

Details Computer Simulations of Opinions Computer Simulations of Opinions

2005-01-29

arxiv.org/abs/cond-mat/0501730v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

32 pages including 14 figs. For Springer book of Albeverio, Jentsch and Kantz

Scientific paper

We review the opinion dynamics in the computer models of Deffuant et al. (D), of Krause and Hegselmann (KH), and of Sznajd (S). All these models allow for consensus (one final opinion), polarization (two final opinions), and fragmentation (more than two final opinions), depending on how tolerant people are to different opinions. We then simulate the reactions of people to ex treme events, in that we modify the opinion of an individual and investigate how the dynamics of a consensus model diffuses this perturbation among the other members of a community. It often happens that the original shock induced by the extreme event influences the opinion of a big part of the society.

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