期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 336, 期 1-2, 页码 56-62出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2004.01.010
关键词
opinion dynamics; diffusion-reaction; minority spreading
A model for the dynamics of opinion forming in democratic public debate is presented. Using concepts and techniques from the physics of disorder the dynamics of social refusal spreading is studied within a perfect world, where the minority holds neither better arguments nor lobbying backing. The one-person-one-vote rule, together with local majority rules, are used to determine the outcome of local group discussions. In case of a local tie, the group decides on keeping the Status Quo. The geometry of social life shaped by offices, houses, bars, and restaurants is shown to determine the distribution size of these discussion groups. It is found to yield very asymmetric unstable thresholds to the total spreading of one opinion at the benefit of the refusal one. The associated dynamics is rather quick and completed within few days. This democratic paradox of public debate driven majority opinion reversal is discussed in light of some European construction issues. The model may apply to rumor and fear propagation. (C) 2003 Elsevier B.V. All rights reserved.
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