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Regret and the rationality of choices

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  • Sacha Bourgeois-Gironde

    (IJN - Institut Jean-Nicod - DEC - Département d'Etudes Cognitives - ENS Paris - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - CdF (institution) - Collège de France - CNRS - Centre National de la Recherche Scientifique - Département de Philosophie - ENS Paris - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres)

Abstract

Regrat helps to optimize decision-behaviour. It can be defined as a rational emotion. Several recent neurobiological studies have confirmed the interface between emotion and cognition at which regret is located and documented its role in decision behaviour. The data give credibility to the incorporation of regret in decision-theory that had been proposed by economists in the 1980s. However, finer distinctions are required in order to get a better grasp of how regret and behaviour influence each other. Regret can be defined as a predictive error signal but this signal does not necessarily transpose into a decision-weight influencing behaviour. Clinical studies on several types of patients show that the processing of an error-signal and its influence on subsequent behaviour can be dissociated. We propose a general understanding of how regret and decision-making are connected in terms of regret being modulated by rational antecedents of choice. Regret and the modification of behaviour on its basis will depend on the criteria of rationality involved in decision-making. We indicate current and prospective lines of research in order to refine our views on how regret contributes to optimal decision-making.

Suggested Citation

  • Sacha Bourgeois-Gironde, 2009. "Regret and the rationality of choices," Post-Print ijn_00432308, HAL.
  • Handle: RePEc:hal:journl:ijn_00432308
    Note: View the original document on HAL open archive server: https://hal.science/ijn_00432308
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    References listed on IDEAS

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    1. Loomes, Graham & Sugden, Robert, 1982. "Regret Theory: An Alternative Theory of Rational Choice under Uncertainty," Economic Journal, Royal Economic Society, vol. 92(368), pages 805-824, December.
    2. Sergiu Hart & Andreu Mas-Colell, 2013. "A Simple Adaptive Procedure Leading To Correlated Equilibrium," World Scientific Book Chapters, in: Simple Adaptive Strategies From Regret-Matching to Uncoupled Dynamics, chapter 2, pages 17-46, World Scientific Publishing Co. Pte. Ltd..
    3. Leland, Jonathan W. & Grafman, Jordan, 2005. "Experimental tests of the Somatic Marker hypothesis," Games and Economic Behavior, Elsevier, vol. 52(2), pages 386-409, August.
    4. Daniel Kahneman & Amos Tversky, 2013. "Prospect Theory: An Analysis of Decision Under Risk," World Scientific Book Chapters, in: Leonard C MacLean & William T Ziemba (ed.), HANDBOOK OF THE FUNDAMENTALS OF FINANCIAL DECISION MAKING Part I, chapter 6, pages 99-127, World Scientific Publishing Co. Pte. Ltd..
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    Cited by:

    1. Louis Anthony (Tony) Cox, 2015. "Overcoming Learning Aversion in Evaluating and Managing Uncertain Risks," Risk Analysis, John Wiley & Sons, vol. 35(10), pages 1892-1910, October.
    2. Fang Liu, 2021. "Regret theory under fear of the unknown," Papers 2108.01825, arXiv.org.
    3. Khalil, Elias L., 2015. "Temptations as Impulsivity: How far are Regret and the Allais Paradox from Shoplifting?," Economic Modelling, Elsevier, vol. 51(C), pages 551-559.

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