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Intergroup Conflict Escalation Leads to More Extremism
Empirical findings in the intergroup conflict literature show that individuals’ beliefs that mark differentiation from out-groups become radicalized as intergroup tensions escalate. They also show that this differentiation is proportional to tension escalation. In this paper, we are interested to develop an agent-based model which captures these findings in order to explore the effect of perceived intergroup conflict escalation on the average number of emergent extremists and opinion clusters in the population. The proposed model builds on the 2-dimensional bounded confidence model proposed by Huet et al (2008). The results show that the average number of extremists has a negative correlation with intolerance threshold and positive correlation with the amount of opinion movement when two agents are to reject each other’s belief. In other words, the more tensions exist between groups, the more individuals getting extremists. We also found that intergroup conflict escalation leads to lower opinion diversity in the population compared with normal situations
Zaller-Deffuant model of mass opinion
Recent formulation of the Zaller model of mass opinion is generalized to
include the interaction between agents. The mechanism of interaction is close
to the bounded confidence model. The outcome of the simulation is the
probability distribution of opinions on a given issue as dependent on the
mental capacity of agents. Former result was that a small capacity leads to a
strong belief. Here we show that an intensive interaction between agents also
leads to a consensus, accepted without doubts.Comment: 9 pages, 10 figures (in 23 eps files), RevTeX
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