Caballé, Jordi; Esteban, Joan - Departament d'Economia i Història Econòmica, … - 2003
In this paper we propose the in?mum of the Arrow-Pratt index of absolute risk aversion as a measure of global risk aversion of a utility function. We show that, for any given arbitrary pair of distributions, there exists a threshold level of global risk aversion such that all increasing concave...