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Ethics and Illusions: How Ethical Declarations Shape Market Behavior

Author

Listed:
  • John M. Barrios
  • Jeremy Bertomeu
  • Radhika Lunawat
  • Ibrahima Sall

Abstract

We examine the impacts of ethical declarations on market transactions through a controlled laboratory experiment, where privately-informed sellers issue a public report prior to a first-price auction. We find that while signing an ethical statement does not reduce misreporting by sellers, it significantly increases buyer trust, often skewing the terms of the trade in favor of sellers. Contrary to rational expectations, buyers consistently struggle to undo the bias. In counterfactual scenarios, from our structural analysis, we find that price efficiency improves when buyers rationally process uncertainty about sellers' ethical preferences, yet bias persists even when buyers have more accurate perceptions of sellers'’ ethical standards. Overall, our results suggests that disclosure interventions aimed at enhancing ethical conduct in market settings may not necessarily lead to more efficient pricing or reduced bias, and in some instances, may even disadvantage certain market participants.

Suggested Citation

  • John M. Barrios & Jeremy Bertomeu & Radhika Lunawat & Ibrahima Sall, 2024. "Ethics and Illusions: How Ethical Declarations Shape Market Behavior," NBER Working Papers 32385, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:32385
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    More about this item

    JEL classification:

    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G4 - Financial Economics - - Behavioral Finance
    • G41 - Financial Economics - - Behavioral Finance - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making in Financial Markets

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