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This study explores economic principles in communication games. Participants followed Horn's rule for costly signals, aligning with focal point theory, but evolutionary game theory explained behavior in costless signaling scenarios.

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Area of Science:

  • Behavioral Economics
  • Game Theory
  • Experimental Economics

Background:

  • Communication games involve senders and receivers with shared interests.
  • Theories predict efficient signaling equilibria, like Horn's rule, especially with costly signals.
  • Understanding which economic principles drive signaling behavior is crucial.

Purpose of the Study:

  • To experimentally investigate how economic principles influence communication in sender-receiver games.
  • To test whether Horn's rule or other theories best explain signaling behavior under different conditions (costly vs. costless signals).
  • To examine the impact of priming on signaling strategies.

Main Methods:

  • Designed and implemented variants of the sender-receiver game.
  • Varied signal costs (costly vs. costless) and introduced priming conditions.
  • Analyzed participant behavior to identify adherence to Horn's rule and compare theoretical predictions.

Main Results:

  • Participants predominantly followed Horn's rule in costly signaling games, best explained by focal point theory.
  • In costless signaling, evolutionary game theory best explained results, with priming significantly affecting coordination on separating equilibria.
  • Priming effects were also observed in costly signaling scenarios.

Conclusions:

  • Focal point theory explains adherence to Horn's rule in costly signaling.
  • Evolutionary game theory is key to understanding costless signaling and priming effects.
  • Behavioral economics principles, including priming, significantly impact communication strategies even when signals are costly.