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. …

(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 …

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 … importance of excuse-driven behavior is comparable under ambiguity and under risk. Individuals exploit any type of uncertainty as …

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

interact in such situations. In this paper we provide experimental evidence on this question. In a first experiment givers are … the realized state of the world. In a second experiment, risk affects the earnings of givers but not of beneficiaries. We …

oder für andere Personen. Wir verwenden ein 'within-subjects' für unser Experiment, bei dem Vermögensverwalter in …