ambiguity averse relation. First, we define two notions of more ambiguous with respect to such a class. A more ambiguous (I) act … makes an ambiguity averse decision maker (DM) worse off but does not affect the welfare of an ambiguity neutral DM. A more … ambiguous (II) act adversely affects a more ambiguity averse DM more, as measured by the compensation they require to switch …

Ambiguity refers to a decision situation under uncertainty when there is incomplete information about the likelihood of … ambiguity and ambiguity aversion. …

differences lies in the dichotomy between first-order and second-order ambiguity aversion which I define here. My definition and …-order ambiguity aversion a positive exposure to ambiguity is optimal if and only if there is a subjective belief such that the actś … expected outcome is positive. With first-order ambiguity aversion, zero exposure to ambiguity can be optimal. Examples in …

This paper provides a systematic analysis of individual attitudes towards ambiguity, based on laboratory experiments …. The design of the analysis allows to capture individual behavior across various levels of ambiguity, ranging from low to … high. Attitudes towards risk and attitudes towards ambiguity are disentangled, providing pure measures of ambiguity …