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Title

Nonequilibrium transition induced by mass media in a model for social influence

AuthorsGonzález-Avella, Juan Carlos ; Cosenza, Mario G.; Tucci, K.
KeywordsLarge-scale systems
Social sciences
Numerical analysis
Phase transformations
Statistical analysis
[PACS] Structures and organization in complex systems
[PACS] Dynamics of social systems
[PACS] Lattice theory and statistics including Ising, Potts models, etc
Issue Date1-Dec-2005
PublisherAmerican Physical Society
CitationPhysical Review E 72, 065102 (R) (2005)
AbstractWe study the effect of mass media, modeled as an applied external field, on a social system based on Axelrod's model for the dissemination of culture. The numerical simulations show that the system undergoes a nonequilibrium phase transition between an ordered phase (homogeneous culture) specified by the mass media and a disordered (culturally fragmented) one. The critical boundary separating these phases is calculated on the parameter space of the system, given by the intensity of the mass media influence and the number of options per cultural attribute. Counterintuitively, mass media can induce cultural diversity when its intensity is above some threshold value. The nature of the phase transition changes from continuous to discontinuous at some critical value of the number of options. A linear relation characterizing the change in the order of the phase transition is found.
Description4 pages, 4 figures.-- PACS nrs.: 89.75.Fb, 87.23.Ge, 05.50.+q.-- ArXiv pre-print available: http://arxiv.org/abs/nlin/0511013
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevE.72.065102
URIhttp://hdl.handle.net/10261/7498
DOI10.1103/PhysRevE.72.065102
ISSN1539-3755
Appears in Collections:(IFISC) Artículos
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