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Related Experiment Video

Updated: Jul 1, 2025

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
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When selection pays: Structured public goods game with a generalized interaction mode.

Ju Han1, Xiaojie Chen1, Attila Szolnoki2

  • 1School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.

Chaos (Woodbury, N.Y.)
|March 14, 2024
PubMed
Summary
This summary is machine-generated.

Cooperation evolves more readily when individuals select a subset of neighbors for public goods games, rather than engaging all neighbors. This restricted interaction model promotes cooperation over defection in structured populations.

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Area of Science:

  • Evolutionary Game Theory
  • Social Dilemmas
  • Population Dynamics

Background:

  • The public goods game is a key model for studying cooperation in structured populations.
  • Traditional models assume all neighbors participate in every interaction.
  • Real-world interactions often involve selective participation.

Purpose of the Study:

  • To propose and analyze a model where individuals select a subset of neighbors for public goods games.
  • To investigate how interaction structure influences the evolution of cooperation.
  • To determine conditions favoring cooperation over defection.

Main Methods:

  • Utilizing a pair-approximation approach.
  • Analyzing the weak selection limit.
  • Theoretically examining the influence of total neighbors and group size on the critical enhancement factor.

Main Results:

  • A restricted interaction mode lowers the critical enhancement factor for cooperation.
  • Cooperation becomes dominant over defection under less stringent conditions compared to traditional models.
  • Theoretical predictions are validated by numerical calculations.

Conclusions:

  • Selective participation in public goods games enhances the evolution of cooperation.
  • Restricted interaction provides a more favorable environment for cooperative strategies.
  • This finding has implications for understanding cooperation in complex social structures.