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Article Dans Une Revue Risk, Decision and Policy Année : 2000

An Experimental Study of Updating Ambiguous Beliefs

Michèle D. Cohen
  • Fonction : Auteur
Itzhak Gilboa
  • Fonction : Auteur
David Schmeidler
  • Fonction : Auteur

Résumé

‘Ambiguous beliefs’ are beliefs which are inconsistent with a unique, additive prior. The problem of their update in face of new information has been dealt with in the theoretical literature, and received several contradictory answers. In particular, the ‘maximum likelihood update’ and the ‘full Bayesian update’ have been axiomatized. This experimental study attempts to test the descriptive validity of these two theories by using the Ellsberg experiment framework.
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Dates et versions

hal-01195655 , version 1 (08-09-2015)

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  • HAL Id : hal-01195655 , version 1

Citer

Michèle D. Cohen, Itzhak Gilboa, Jean-Yves Jaffray, David Schmeidler. An Experimental Study of Updating Ambiguous Beliefs. Risk, Decision and Policy, 2000, 5 (2), pp.123-133. ⟨hal-01195655⟩
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