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Título

System size stochastic resonance in a model for opinion formation

Autor Tessone, Claudio J.; Toral, Raúl
Palabras clave [PACS] Dynamics of social systems
[PACS] Noise
[PACS] Stochastic processes
Fecha de publicación 5-ene-2005
EditorElsevier
Citación Physica A 351(1): 106-116 (2005)
ResumenWe 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.
Descripción 11 pages, 7 figures.-- PACS nrs.: 87.23.Ge; 05.40.Ca; 02.50.Ey.-- ArXiv pre-print available: http://arxiv.org/abs/cond-mat/0409620v1
Versión del editorhttp://dx.doi.org/10.1016/j.physa.2004.12.012
URI http://hdl.handle.net/10261/7504
DOI10.1016/j.physa.2004.12.012
ISSN0378-4371
Aparece en las colecciones: (IFISC) Artículos
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