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Aspiration induced interdependence leads to optimal cooperation level.

Yini Geng1, Kaipeng Hu1, Chen Shen1

  • 1School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming 650221, China.

Chaos (Woodbury, N.Y.)
|September 2, 2019
PubMed
Summary

This study introduces a novel network coupling method for interdependent networks. Moderate aspiration levels foster cooperation by enabling players to seek support across networks, enhancing system diversity.

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Area of Science:

  • Complex Systems
  • Network Science
  • Game Theory

Background:

  • Interdependent networks rely on coupling mechanisms like information sharing and payoff coupling.
  • Existing coupling methods have limitations in promoting cooperation.
  • Understanding how to effectively link distinct networks is crucial for emergent behaviors.

Purpose of the Study:

  • To propose and evaluate a new network coupling strategy for interdependent networks.
  • To investigate the role of aspiration levels in influencing player behavior and cooperation.
  • To analyze how external links impact cooperative dynamics.

Main Methods:

  • Introduction of a novel coupling mode based on an aspiration threshold for seeking inter-network support.
  • Simulation of player strategies within interdependent networks under the proposed coupling mode.
  • Analysis of the impact of moderate aspiration levels on cooperation and system diversity.
  • Examination of the role of boundary players in cooperative cluster formation and expansion.

Main Results:

  • A moderate aspiration level successfully introduces diversity and promotes cooperation.
  • The proposed network coupling mechanism supports the evolution of cooperation.
  • Players with external links on the boundaries of cooperative clusters protect internal cooperators.
  • Preferential selection rules, combined with external links, attract more players to cooperate.

Conclusions:

  • The novel coupling strategy effectively enhances cooperation in interdependent networks.
  • Aspiration levels are critical in balancing individual strategy selection and inter-network support.
  • External links and preferential selection play a significant role in stabilizing and expanding cooperative behaviors.