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Social evolution leads to persistent corruption.

Joung-Hun Lee1,2, Yoh Iwasa2,3, Ulf Dieckmann4,5

  • 1Institute of Decision Science for a Sustainable Society, Kyushu University, 819-0395 Fukuoka, Japan.

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Summary
This summary is machine-generated.

Institutions that punish free-riders can sustain cooperation but risk corruption without monitoring. Transparency is key to reducing endemic corruption and maintaining institutional integrity for long-term cooperation.

Keywords:
cooperationcorruptionevolutionary game theorypunishmentsocial contract

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Area of Science:

  • Socio-economics
  • Game Theory
  • Institutional Analysis

Background:

  • Cooperation is vital for societal functioning but susceptible to free-riding.
  • Institutions that enforce cooperation through punishment are prone to corruption if unmonitored.
  • Monitoring cooperation mechanisms is costly, creating a temptation to neglect it.

Purpose of the Study:

  • To model the dynamic interplay between cooperation, punishment, monitoring, and corruption.
  • To investigate the conditions under which institutions maintain or lose integrity.
  • To analyze the impact of transparency on corruption and cooperation.

Main Methods:

  • Evolutionary game theory modeling.
  • Analytical mathematical methods.
  • Numerical simulations of institutional dynamics.

Main Results:

  • The model demonstrates that neglecting monitoring leads to corruption and cooperation breakdown.
  • Oscillatory patterns (sustained or damped) emerge in institutional integrity and cooperation levels.
  • Corruption is shown to be endemic, with transparency significantly mitigating its prevalence.

Conclusions:

  • Sustained cooperation requires vigilant monitoring to prevent corruption.
  • The temptation to forgo monitoring, despite its costs, inevitably leads to institutional decay.
  • Transparency is a critical factor in combating endemic corruption and ensuring stable cooperation.