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Holds enable one-shot reciprocal exchange.

Marcus Frean1, Stephen Marsland2

  • 1School of Engineering and Computer Science, Victoria University of Wellington, Wellington, New Zealand.

Proceedings. Biological Sciences
|August 10, 2022
PubMed
Summary
This summary is machine-generated.

Strangers can safely exchange goods using an "implicit" hold, where they believe they can stop a defection. This strategy enables cooperation and trade, even in one-off encounters without third-party enforcement.

Keywords:
cooperationreciprocitysocial dilemma

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Area of Science:

  • Behavioral Economics
  • Game Theory
  • Social Psychology

Background:

  • Human societies rely on reciprocal exchange between strangers.
  • Risk of defection (theft) is inherent in one-off exchanges without third parties.
  • Safe exchange mechanisms are crucial for facilitating cooperation.

Purpose of the Study:

  • To identify the minimum requirements for safe exchange between strangers.
  • To analyze the role of 'holds' in enabling cooperation.
  • To understand how implicit holds facilitate trade, such as purchasing.

Main Methods:

  • Game-theoretic modeling of agent interactions.
  • Analysis of payoff structures in exchange scenarios.
  • Examination of 'shared hold' as a condition for cooperation.

Main Results:

  • A shared hold (physical or perceived) is the minimum requirement for safe exchange.
  • Competing agents can reach an exchange optimum.
  • 'Implicit' holds, based on perceived ability to intervene, are sufficient for cooperation.
  • Purchasing with money is analyzed as a specific case.

Conclusions:

  • Implicit holds balance risk and convenience, enabling common human interactions.
  • Cooperation in one-off encounters is facilitated by perceived security, not just physical control.
  • Understanding these mechanisms is key to economic and social interactions.