Damage Spreading and Opinion Dynamics on Scale Free Networks
Abstract
We study damage spreading among the opinions of a system of agents, subjected to the dynamics of the Krause-Hegselmann consensus model. The damage consists in a sharp change of the opinion of one or more agents in the initial random opinion configuration, supposedly due to some external factors and/or events. This may help to understand for instance under which conditions special shocking events or targeted propaganda are able to influence the results of elections. For agents lying on the nodes of a Barabasi-Albert network, there is a damage spreading transition at a low value epsilond of the confidence bound parameter. Interestingly, we find as well that there is some critical value epsilons above which the initial perturbation manages to propagate to all other agents.
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