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Extreme Events in Nature and Society pp 233–257Cite as

Computer Simulations of Opinions and their Reactions to Extreme Events

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Part of the book series: The Frontiers Collection ((FRONTCOLL))

Summary

We review the opinion dynamics in the computer models of Deffuant et al. (D), of Krause and Hegselmann (KH), and of Sznajd (S). All of 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 Xevents, 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 Xevent influences the opinion of a large part of society.

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Author information

Authors and Affiliations

  1. Institut für Physik, Universität Bielefeld, Bielefeld, Germany

    Santo Fortunato

  2. Institut für Theoretische Physik, Universität zu Köln, Köln, Germany

    Dietrich Stauffer

Authors
  1. Santo Fortunato
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  2. Dietrich Stauffer
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Editor information

Editors and Affiliations

  1. Interdisziplinäres Zentrum für Komplexe Systeme und Institut für Angewandte Mathematik, Universität Bonn, Wegelerstraße 6, 53115, Bonn, Germany

    Sergio Albeverio  & Volker Jentsch  & 

  2. Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, 01187, Dresden, Germany

    Holger Kantz

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© 2006 Center for Frontier Sciences

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Cite this chapter

Fortunato, S., Stauffer, D. (2006). Computer Simulations of Opinions and their Reactions to Extreme Events. In: Albeverio, S., Jentsch, V., Kantz, H. (eds) Extreme Events in Nature and Society. The Frontiers Collection. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-28611-X_11

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