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Published on: October 29, 2016
Cyclic coevolution of cooperative behaviors and network structures
Reiji Suzuki1, Masanori Kato, Takaya Arita
1Graduate School of Information Science, Nagoya University, Nagoya, Japan. reiji@nagoya-u.jp
Summary
Cooperative behaviors and network structures coevolve. Evolutionary models show cycles of cooperation and network change occur when temptation and cost are moderate.
Area of Science:
- Evolutionary game theory
- Network science
- Computational social science
Background:
- Cooperation is crucial for social structures.
- Understanding the interplay between behavior and network topology is key.
Purpose of the Study:
- To investigate the coevolutionary dynamics between cooperative strategies and interaction network structures.
- To identify conditions favoring the emergence and maintenance of cooperation.
Main Methods:
- Developed an evolutionary model incorporating strategies for both Prisoner's Dilemma and network structure modification.
- Conducted evolutionary experiments with varying payoff matrix parameters.
Main Results:
- Observed recurring coevolutionary cycles between individual cooperative behaviors and network structures.
- These cycles were prominent under moderate temptation to defect and moderate game costs.
Conclusions:
- Cooperation and network structure are dynamically linked.
- Moderate game parameters facilitate cyclical coevolution, promoting complex social dynamics.
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