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Formation of Opinions under the Influence of Competing Agents — a Mean Field Approach

  • Conference paper
Traffic and Granular Flow ’99

Abstract

We study a model of opinion formation based on the theory of social impact and the concept of cellular automata. The case is considered when two strong agents influence the group: a strong leader and an external social impact acting uniformly on every individual. There are two basic stationary states of the system: cluster of the leader’s adherents and unification of opinions. In the deterministic limit the variation of parameters like the leader’s strength or external impact can change the size of the cluster or, when they reach some critical values, make the system jump to another phase. In the presence of noise (social temperature) the rapid changes can be regarded as the first order phase transitions. When both agents are in a kind of balance, a second order transition and critical behaviour can be observed. Analytical results obtained within a mean field approximation are well reproduced in computer simulations.

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Author information

Authors and Affiliations

  1. Max Planck Institute for Physics of Complex Systems, Nöthnitzer Str. 38, 01187, Dresden, Germany

    K. Kacperski

  2. Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00–662, Warsaw, Poland

    J. A. Holyst

Authors
  1. K. Kacperski
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  2. J. A. Holyst
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Editor information

Editors and Affiliations

  1. Institut für Wirtschaft und Verkehr, Technische Universität Dresden, 01062, Dresden, Germany

    Dirk Helbing

  2. ICA 1 Universität Stuttgart, Pfaffenwaldring 57/III, 70550, Stuttgart, Germany

    Hans J. Herrmann

  3. Physik von Transport und Verkehr, Gerhard-Mercator-Universität Duisburg, Lotharstraße 1, 47048, Duisburg, Germany

    Michael Schreckenberg

  4. Theoretische Physik, Gerhard-Mercator-Universität Duisburg, Lotharstraße 1, 47048, Duisburg, Germany

    Dietrich E. Wolf

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© 2000 Springer-Verlag Berlin Heidelberg

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Kacperski, K., Holyst, J.A. (2000). Formation of Opinions under the Influence of Competing Agents — a Mean Field Approach. In: Helbing, D., Herrmann, H.J., Schreckenberg, M., Wolf, D.E. (eds) Traffic and Granular Flow ’99. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-59751-0_6

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  • DOI: https://doi.org/10.1007/978-3-642-59751-0_6

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-64109-1

  • Online ISBN: 978-3-642-59751-0

  • eBook Packages: Springer Book Archive

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