In most medical decisions probabilities are ambiguous and not objectively known. Empirical evidence suggests that people's preferences are affected by ambiguity. Health economic analyses generally ignore ambiguity preferences and assume that they are the same as preferences under risk. We show...

Higher order risk preferences are important determinants of economic behaviour. We apply behavioural insights to this topic: we measure higher order risk preferences for pure gains and pure losses by controlling the reference point. We find a reflection effect not only for second order risk...