Advertising and irreversible opinion spreading in complex social networks

Details Advertising and irreversible opinion spreading in complex social networks Advertising and irreversible opinion spreading in complex social networks

2009-02-07

arxiv.org/abs/0902.1217v1

Int. J. Mod. Phys. C 20, 799 (2009)

Physics

Physics and Society

20 pages, 11 figures. To appear in IJMPC

Scientific paper

Irreversible opinion spreading phenomena are studied on small-world and scale-free networks by means of the magnetic Eden model, a nonequilibrium kinetic model for the growth of binary mixtures in contact with a thermal bath. In this model, the opinion of an individual is affected by those of their acquaintances, but opinion changes (analogous to spin flips in an Ising-like model) are not allowed. We focus on the influence of advertising, which is represented by external magnetic fields. The interplay and competition between temperature and fields lead to order-disorder transitions, which are found to also depend on the link density and the topology of the complex network substrate. The effects of advertising campaigns with variable duration, as well as the best cost-effective strategies to achieve consensus within different scenarios, are also discussed.

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