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Collective Threshold Model Based on Utility and Psychological Theories

In this paper the authors investigate critical phase transition characteristic of collective action by considering the mechanisms of both rational utility and psychological threshold based on the Granovetter 1978's threshold model. Numeric simulation is used to observe the collective dynamics with consideration of both spatial factor and social network friendship density. The authors observe that activation threshold model with both utility and psychological thresholds included shows more stable in phase transition than that in the classic model. The authors also find that spatial factor and friendship network density have trivial impact on final equilibrium of collective behavior.