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Intergroup conflict and rational decision making.

Vicente Martínez-Tur1, Vicente Peñarroja1, Miguel A Serrano2

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Intergroup conflict impairs rational decision-making. However, engaging in group discussions post-conflict enhances decision rationality for both groups and individuals.

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Area of Science:

  • Social Psychology
  • Behavioral Economics
  • Conflict Resolution

Background:

  • Post-conflict processes and cooperative decision-making remain under-researched.
  • Understanding human behavior in post-conflict scenarios is crucial for societal challenges.

Purpose of the Study:

  • To investigate the rationality of cooperative decision-making following intergroup conflict.
  • To examine how in-group deliberative discussion influences post-conflict cooperation.

Main Methods:

  • Laboratory experiment examining cooperative decision-making after simulated intergroup conflict.
  • Measurement of negative affect state and heart rate as indicators of conflict activation.
  • Comparison of decision-making rationality with and without in-group deliberative discussion.

Main Results:

  • Intergroup conflict negatively impacts decision-making rationality over time, evidenced by negative affect and increased heart rate.
  • Decision-making rationality improves significantly after groups engage in in-group deliberative discussion.
  • Enhanced group decision rationality following deliberation transfers to subsequent individual decision-making.

Conclusions:

  • Intergroup conflict hinders rational cooperation, leading to sub-optimal outcomes.
  • In-group deliberation serves as a mechanism to restore and enhance decision-making rationality after conflict.
  • Deliberative processes can foster more rational cooperative behaviors in post-conflict settings.