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Une nouvelle approche expérimentale pour tester les modèles quantiques de l’erreur de conjonction


  • Sébastien Duchêne
  • Thomas Boyer-Kassem
  • Eric Guerci


In classical probability theory, the probability of the conjunction of two events is smaller than the probability of only one of these events.?Yet, agents do not always empirically judge in this way: this is the traditional conjunction fallacy.?One of the currently promising accounts of this paradox relies on so-called quantum-like models, which have been developed from mathematical tools used in quantum theory.?But are these models empirically adequate'Which versions of these models can be used'In particular, can the simplest versions, the non-degenerate ones, be sufficient'We propose here an original experimental protocol to test the quantum-like models for the conjunction fallacy in the lab.?The results we obtain suggest that the non-degenerate models are not empirically adequate, and that future research on quantum-like models should consider degenerate ones. Classification JEL?: C60, C91, D03.

Suggested Citation

  • Sébastien Duchêne & Thomas Boyer-Kassem & Eric Guerci, 2017. "Une nouvelle approche expérimentale pour tester les modèles quantiques de l’erreur de conjonction," Revue économique, Presses de Sciences-Po, vol. 68(5), pages 757-771.
  • Handle: RePEc:cai:recosp:reco_pr3_0096

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    JEL classification:

    • C60 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - General
    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles


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