Berlin 2012 – scientific programme

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 20: Social Systems, Opinion and Group Dynamics III

SOE 20.4: Talk

Thursday, March 29, 2012, 14:45–15:00, H 0110

Opinion diffussion on commuting populations — •Juan Fernández-Gracia, Víctor M. Eguíluz, and Maxi San Miguel — IFISC, Instituto de Física interdisciplinar y Sistemas Complejos (CSIC-UIB), Campus Universitat Illes Balears, E-07122 Palma de Mallorca, Spain

We model a network of interaction having into account explicitly commuting patterns, which accounts for most intracity mobility, and explore the effect of this interaction network on the dynamics of opinion competition. In particular we make use of a simple agent based model (the voter model) in which agents can have one of two equivalent opinions and they update their opinion by copying the opinion of another agent they come in touch with. Referring to the network of interaction, we have a substrate of cities and certain fluxes of commuting agents between them. We measure analitycally and numerically the impact on the evolution of the global opinion of different topologies such as lattices in one and two dimensions with (a) heterogeneous populations and (b) commuting patterns. Furthermore we asses the impact of the strength with which populations are mixed, which is a tunable parameter in the model.