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Published in:
2012 | OriginalPaper | Chapter
A Study of Collective Action Threshold Model Based on Utility and Psychological Theories
Authors : Zhenpeng Li, Xijin Tang
Published in: Active Media Technology
Publisher: Springer Berlin Heidelberg
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In this paper, we extend Granovetter’s classic threshold model by adding both utility and psychological threshold. We conduct simulations with the presented model while also considering the spatial factor and friendship influence strength. We observe that the equilibrium of collective dynamics is not closely related to the friendship impact. With no utility and psychological threshold, the equilibrium state of the model is sensitive to the fluctuation of the collective threshold distribution and displays critical phenomena. By comparison, the equilibrium state with considering utility and psychological threshold looks positively robust. Furthermore, we observe that both cases demonstrate group bi-polarization pattern with the increase of standard deviation of the threshold.