TY - JOUR
T1 - Spatial prisoner's dilemma optimally played in small-world networks
AU - Masuda, Naoki
AU - Aihara, Kazuyuki
N1 - Funding Information:
This work is supported by the Japan Society for the Promotion of Science, by the Advanced and Innovational Research program in Life Sciences from the Ministry of Education, Culture, Sports, Science, and Technology, the Japanese Government, and by Superrobust Computation Project in 21st Century COE Program on Information Science and Technology Strategic Core.
PY - 2003/6/23
Y1 - 2003/6/23
N2 - Cooperation is commonly found in ecological and social systems even when it apparently seems that individuals can benefit from selfish behavior. We investigate how cooperation emerges with the spatial prisoner's dilemma played in a class of networks ranging from regular lattices to random networks. We find that, among these networks, small-world topology is the optimal structure when we take into account the speed at which cooperative behavior propagates. Our results may explain why the small-world properties are self-organized in real networks.
AB - Cooperation is commonly found in ecological and social systems even when it apparently seems that individuals can benefit from selfish behavior. We investigate how cooperation emerges with the spatial prisoner's dilemma played in a class of networks ranging from regular lattices to random networks. We find that, among these networks, small-world topology is the optimal structure when we take into account the speed at which cooperative behavior propagates. Our results may explain why the small-world properties are self-organized in real networks.
KW - Evolution of cooperation
KW - Game theory
KW - Small-world networks
KW - Spatial prisoner's dilemma
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U2 - 10.1016/S0375-9601(03)00693-5
DO - 10.1016/S0375-9601(03)00693-5
M3 - Article
AN - SCOPUS:0038343466
SN - 0375-9601
VL - 313
SP - 55
EP - 61
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1-2
ER -