Dynamic scaling regimes of collective decision making

Details Dynamic scaling regimes of collective decision making Dynamic scaling regimes of collective decision making

2006-05-25

arxiv.org/abs/q-bio/0605043v3

Europhys. Lett. 81, (2008) 28003

Biology

Quantitative Biology

Populations and Evolution

Scientific paper

10.1209/0295-5075/81/28003

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 does not seem to be any such distinct scaling regions.

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