ambiguity may induce such behaviour.[...] …

A donation may have ambiguous costs or ambiguous benefits. Behavior in a laboratory experiment suggests that … individuals use this ambiguity strategically as a moral wiggle room to act less generously without feeling guilty. Such excuse … excuse-driven behavior is comparable under ambiguity and under risk. Individuals exploit any type of uncertainty as an excuse …

(KMM) interpret ambiguity aversion as aversion against second-order risks associated with ambiguous acts. We design an … experiment where the decision maker draws twice with replacement in the typical Ellsberg two-color urns, but with a different … experiments. It appears that the ambiguity premium is partially paid to avoid the ambiguity issue per se, which is distinct from …

be stable over time. In this paper, we analyze the stability of ambiguity preferences experimentally. We repeatedly … elicit ambiguity attitudes towards multiple 3-color Ellsberg urns over a period of two months. In our data, 57% of the …

This paper's objective is to design a laboratory experiment to explore the effect of ambiguity on a subject's search … faced with ambiguity over wage distributions. …

toward multiple‐prior uncertainties in terms of ambiguity and its corresponding compound risk. Our findings point to a shared …

We report a portfolio-choice experiment that enables us to estimate parametric models of ambiguity aversion at the … of ambiguity aversion, one kinked and one smooth, that encompass many of the theoretical models in the literature. Each … specification includes two parameters: one for ambiguity attitudes and another for risk attitudes. We also estimate a three …

This paper's objective is to design a laboratory experiment to explore the effect of ambiguity on a subject's search … faced with ambiguity over wage distributions. …

Many theories of updating under ambiguity assume either dynamic consistency or consequentialism to underpin … concepts, we conduct a dynamic extension of Ellsbergʼs 3-color experiment. We find that more subjects act in line with … consequentialism than with dynamic consistency and that this result is even stronger among ambiguity averse subjects. …