This paper proposes and characterises a model of uncertainty averse preferences that can simultaneously accommodate three divergences from subjective expected utility: imprecision of beliefs (or ambiguity), imprecision of tastes (or multi utility), and state dependence of utility. Moreover, it...

We study portfolio allocation and characterize contracts issued by firms in the international financial market when investors exhibit ambiguity aversion and perceive ambiguity in assets issued in foreign locations. Increases in the variance of their risky production process cause firms to issue...

Using a model of bivariate decision under risk of disease, with separates the financial losses from the health losses, we analyse the curative demand for healthcare and the determinants of overconsumption care problem. We also study the demand for self-protection and the demand for...