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Interacting Agents and Continuous Opinions Dynamics

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Author Info

  • Gérard Weisbuch
  • Guillaume Deffuant
  • Frederic Amblard
  • Jean Pierre Nadal

Abstract

We present a model of opinion dynamics in which agents adjust continuous opinions as a result of random binary encoun ters whenever their difference in opinion is below a given threshold. High thresholds yield convergence of opinions towards an average opinion, whereas low thresholds result in several opinion clusters. The model is further generalized to network interactions, threshold heterogeneity, adaptive thresholds and binary strings of opinions.

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Bibliographic Info

Paper provided by Santa Fe Institute in its series Working Papers with number 01-11-072.

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Date of creation: Nov 2001
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Handle: RePEc:wop:safiwp:01-11-072

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Web page: http://www.santafe.edu/sfi/publications/working-papers.html
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Related research

Keywords: Dynamics; opinions; norms; bounded rationality; economic choices;

This paper has been announced in the following NEP Reports:

References

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  1. Follmer, Hans, 1974. "Random economies with many interacting agents," Journal of Mathematical Economics, Elsevier, vol. 1(1), pages 51-62, March.
  2. Cohen, Joel E. & Hajnal, John & Newman, Charles M., 1986. "Approaching consensus can be delicate when positions harden," Stochastic Processes and their Applications, Elsevier, vol. 22(2), pages 315-322, July.
  3. H. Peyton Young & Mary A. Burke, 2001. "Competition and Custom in Economic Contracts: A Case Study of Illinois Agriculture," American Economic Review, American Economic Association, vol. 91(3), pages 559-573, June.
  4. Orlean, Andre, 1995. "Bayesian interactions and collective dynamics of opinion: Herd behavior and mimetic contagion," Journal of Economic Behavior & Organization, Elsevier, vol. 28(2), pages 257-274, October.
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Cited by:
  1. Rainer Hegselmann, 2009. "Meinungsbildung in Gruppen: Wie tragfaehig sind vereinfachende Modellierungsansaetze?," Rationality, Markets and Morals, Frankfurt School Verlag, Frankfurt School of Finance & Management, vol. 0(8), November.
  2. Blanco, Iván, 2005. "The silence that precedes hypocrisy: a formal model of the spiral of silence theory," MPRA Paper 45452, University Library of Munich, Germany.

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