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Dynamic scaling regimes of collective decision making

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Published 6 December 2007 Europhysics Letters Association
, , Citation A. Grönlund et al 2008 EPL 81 28003 DOI 10.1209/0295-5075/81/28003

0295-5075/81/2/28003

Abstract

We investigate a social system of agents faced with a binary choice. We assume there is a correct, or beneficial, outcome of this choice. Furthermore, we assume agents are influenced by others in making their decision, and that the agents can obtain information that may guide them towards making a correct decision. The dynamic model we propose is of nonequilibrium type, converging to a final decision. We run it on random graphs and scale-free networks. On random graphs, we find two distinct regions in terms of the finalizing time —the time until all agents have finalized their decisions. On scale-free networks, on the other hand, there do not seem to be such distinct scaling regions.

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10.1209/0295-5075/81/28003