. In health economics, ambiguity is usually handled through sensitivity analysis, which implicitly assumes that people are … neutral towards ambiguity. However, empirical evidence suggests that people are averse to ambiguity and react strongly to it …. This paper studies the effects of ambiguity aversion on two classical medical decision problems. If there is ambiguity …

affects probability weighting. More in general, this finding supports theories that represent ambiguity attitudes through …

. For both ambiguity averse and neutral subjects within this population, one significant channel is behavioral in nature … (anchoring). For ambiguity averse subjects, another channel of similar magnitude is hedging motivated by the desire to reduce … ambiguity. This channel is absent in the case of ambiguity neutral subjects. …

Sources of uncertainty appear to affect attitude towards ambiguity. For instance, when two advisors agree on a range of … the same. This study draws upon prospect theory and ambiguity research to empirically test how sources of uncertainty …. revealed beliefs). Findings support the predictions that the source of ambiguity matters in particular for low and high …

aversion, along with a coefficient for ambiguity aversion. These are estimated controlling for survey data of sociodemographic … related to loss aversion or ambiguity aversion. …

to information differences (sampling bias), to a feature of preferences (ambiguity sensitivity) or to aspects of …