Berlin 2018 – scientific programme
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 12: Focus Session: Opinion Formation and Voter Models
SOE 12.7: Talk
Tuesday, March 13, 2018, 15:30–15:45, MA 001
Cooperation dynamics reflecting social dilemmas and social conformity in multiplex structured networks — •Yui Murayama1, Ohashi Hirotada1, and Kaj-Kolja Kleineberg2 — 1Dept. Systems Innovation, The University of Tokyo, 7-3-1 Hongo,Bunkyo-ku, Tokyo, Japan — 2Computational Social Science, ETH Zurich, Clausiusstrasse 50, CH-8092,Zurich, Switzerland
Solving many important economical or environmental challenges require large-scale cooperation. Cooperation is surprisingly common even in situations where defection seems the logical choice. Individual behavior, however, is not only determined by the strategic interactions, but also by social influence. Our interest is in how cooperation evolves among networked agents who make decision in dilemmatic situations and what are conditions attaining full cooperation.
We employ two-layer networks; one layer corresponds to strategic interactions and the other layer represents social conformity. In strategic interactions layer, agents play prisoner's dilemma or public goods games. In the social conformity layer, agents change their behavior playing voter games or majority votes with their neighbors. Each layer comprises the same set of nodes but has different link structure.
We identify under which conditions cooperation thrives and when the system becomes stuck in a state with distinct groups of cooperators and defectors. Finally, we propose measures that promote full cooperation and hence successfully overcome the persistence of defectors.