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Are beliefs a matter of taste? A case for Objective Imprecise Information

  • Raphaël Giraud

    (CRESE - Centre de REcherches sur les Stratégies Economiques - UFC - UFC - Université de Franche-Comté)

  • Jean-Marc Tallon

    ()

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics)

We argue, in the spirit of some of Jean-Yves Jaffray's work, that explicitly incorporating the information, however imprecise, available to the decision maker is relevant, feasible, and fruitful. In particular, we show that it can lead us to know whether the decision maker has wrong beliefs and whether it matters or not, that it makes it possible to better model and analyze how the decision maker takes into account new information, even when this information is not an event and finally that it is crucial when attempting to identify and measure the decision maker's attitude toward imprecise information.

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File URL: https://halshs.archives-ouvertes.fr/halshs-00502781/document
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Paper provided by HAL in its series Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) with number halshs-00502781.

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Date of creation: 2011
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Publication status: Published in Theory and Decision, Springer Verlag, 2011, 71 (1), pp.23-32. <10.1007/s11238-010-9197-4>
Handle: RePEc:hal:cesptp:halshs-00502781
DOI: 10.1007/s11238-010-9197-4
Note: View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00502781
Contact details of provider: Web page: https://hal.archives-ouvertes.fr/

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  5. Thibault Gajdos & Takashi Hayashi & Jean-Marc Tallon & Jean-Christophe Vergnaud, 2006. "Attitude toward imprecise information," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00130179, HAL.
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