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Regensburg 2019 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 7: Social Systems, Opinion and Group Formation I

SOE 7.3: Vortrag

Montag, 1. April 2019, 16:30–16:45, H17

Argument Exchange Dynamics in a Population with Divergent Mindsets — •Sven Banisch, Tat Dat Tran, and Eckehard Olbrich — Max-Planck Institut für Mathematik in den Naturwissenschaften, Leipzig

We present a simple model of argument communication, which allows to analyze the effects of different world views. In the model, agents exchange beliefs about facts. Agents evaluate these facts and form an attitudinal judgement on an issue through their cultural glasses. Facts may, if believed, contribute positively or negatively to this judgement in a way borrowed from expectancy value theory. The interaction probability of two agents depends on two types of homophily: one based on the difference of their attitudes and the other one based on whether they belong to the same culture. This allows for an analysis of the effects that the interplay of opinion homophily and cultural segregation may have on the dynamics of opinion formation by argument persuasion. We analytically show that cultural diversity may play a depolarizing role in argument exchange processes.

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