Probabilistic ambiguity, outcome ambiguity or both: Does it matter for the decision-maker?

Marielle Brunette (), Stéphane Couture () and Kene Boun My
Additional contact information
Marielle Brunette: BETA - Bureau d'Économie Théorique et Appliquée - AgroParisTech - UNISTRA - Université de Strasbourg - Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, université dauphine, Climate Economics Chair
Stéphane Couture: MIAT INRAE - Unité de Mathématiques et Informatique Appliquées de Toulouse - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement
Kene Boun My: BETA - Bureau d'Économie Théorique et Appliquée - AgroParisTech - UNISTRA - Université de Strasbourg - Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement

Post-Print from HAL

Abstract: Decisions under ambiguity are an integral part of the daily life of economic decision-makers. However, if ambiguity bears on the probability, on the outcome, or on both, making a decision then becomes non-trivial and the source of ambiguity can have a major impact on the decision. In this paper, we study how decision-makers react to these different sources of ambiguity. For that purpose, we implemented a lab experiment with 209 students. We found that decision-makers prefer risk over different sources of ambiguity. They also prefer outcome ambiguity to probabilistic ambiguity and double ambiguity. Interestingly, when ambiguity exists in both the outcome and probability, subjects prefer double ambiguity to probabilistic ambiguity.

Keywords: Risk Ambiguity; Experiments; Decision-making (search for similar items in EconPapers)
Date: 2025-08
References: Add references at CitEc
Citations:

Published in Journal of Behavioral and Experimental Economics, 2025, 117, pp.102390. ⟨10.1016/j.socec.2025.102390⟩

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-05164507

DOI: 10.1016/j.socec.2025.102390

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD ().