期刊
PHYSICS LETTERS A
卷 377, 期 37, 页码 2333-2339出版社
ELSEVIER
DOI: 10.1016/j.physleta.2013.07.007
关键词
Opinion dynamics; CODA model; Trust
A model for the joint evolution of opinions and how much the agents trust each other is presented, using the framework of the Continuous Opinions and Discrete Actions (CODA) model. Instead of a fixed probability that the other agents will decide in the favor of the best choice, each agent considers that other agents might be one of two types: trustworthy or untrustworthy. Each agent its opinion and also the probability for each one of the other agents it interacts with being trustworthy. The dynamics of opinions and the evolution of the trust between the agents are studied. Clear evidences of the existence of two phases, one with strong polarization and the other tending to agreement, are observed. The transition shows signs of being a first-order transition. This happens despite the fact that the trust network evolves much slower than the opinion on the central issue. (C) 2013 Elsevier B.V. All rights reserved.
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