Does the Compelled Cooperation Determine the Structure of a Complex Network?

Xuan Qi, Li Yan-Jun and Wu Tie-Jun
Chinese Phys. Lett., 25(2 ), 363, 2008.

Cooperation among individuals is considered to play an important role in the evolution of complex networked systems in physical, biological, economical and even epidemiological worlds, but its effects on the development of the systems is not so clear. We consider a specific kind of primal cooperation in a group of individuals, i.e., an individual never cooperates with others except when compelled to do so. The lowest level of compelled cooperation, in which cooperators share no message or resources, is investigated in the background of complex networks driven by the simple game rock-paper-scissors. Simulation results show that with the evolution of the systems, the cooperation will spread all over the networks, and finally results in systems with modular structures and a scale-free property.

This paper in Chinese Physics Letters

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