Dynamic scaling regimes of collective decision making

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 c...

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Veröffentlicht in:EPL - Europhysics Letters 2008-01, Vol.81 (2), p.28003-28003 (6)
Hauptverfasser: Grönlund, A, Holme, P, Minnhagen, P
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:0295-5075
1286-4854
1286-4854
DOI:10.1209/0295-5075/81/28003