Tallon, Jean-Marc; Chateauneuf, Alain - In: Economic Theory 19 (2002) 3, pp. 509-523
We show, in the Choquet expected utility model, that preference for diversification, that is, convex preferences, is equivalent to a concave utility index and a convex capacity. We then introduce a weaker notion of diversification, namely "sure diversification." We show that this implies that...