System size stochastic resonance in a model for opinion formation
We study a model for opinion formation, which incorporates three basic ingredients for the evolution of the opinion held by an individual: imitation, influence of fashion and randomness. We show that in the absence of fashion, the model behaves as a bistable system with random jumps between the two stable states with a distribution of times following Kramer's law. We also demonstrate the existence of system size stochastic resonance, by which there is an optimal value for the number of individuals N for which the average opinion follows better the fashion.
Year of publication: |
2005
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Authors: | Tessone, Claudio J. ; Toral, Raúl |
Published in: |
Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 351.2005, 1, p. 106-116
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Publisher: |
Elsevier |
Saved in:
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