We introduce a model of random ambiguity aversion. Choice is stochastic due to unobserved shocks to both information … and ambiguity aversion. This is modeled as a random set of beliefs in the maxmin expected utility model of Gilboa and … Schmeidler (1989). We characterize the model and show that the distribution of ambiguity aversion can be uniquely identified …

We propose and axiomatically characterize dynamically consistent update rules for decision making under ambiguity … of preferences over acts, to be able to reconcile typical behavior in the face of ambiguity (as exemplified by Ellsberg …’s paradox) with dynamic consistency for all non-null events. Updating takes the form of applying Bayes’ rule to subsets of the …

equivalent consistency under updating characterise a family of capacities, called Genralised Neo-Additive Capacities (GNAC). This …

regarding the realization likelihood of cash flows, the subjective attitude towards risk, and the attitude towards ambiguity …. While previous literature looks at the total price discount under ambiguity, this paper investigates with laboratory … belief effects, the risk premiums, and the ambiguity premiums from each other. Both methods lead to similar results: Overall …

The α-MEU model and the smooth ambiguity model are two popular models in decision making under ambiguity. However, the …

Observed individual behavior in the presence of ambiguity is characterized by insufficient responsiveness to changes in … subjective likelihoods. Such likelihood insensitivity under ambiguity is integral to theoretical models and predictive of … and determining factors. This paper investigates the role of beliefs in the form of ambiguity perception - the extent to …

This paper analyzes dynamic choice for ambiguity-sensitive decision makers. It demonstrates that unambiguous behavioral … decision models and updating rules, and delivers unambiguous welfare comparisons. As an example, a characterization of prior …-by-prior Bayesian updating and Consistent Planning for arbitrary maxmin-expected utility preferences is presented. The resulting …