Diversification, Convex Preferences and Non-Empty Core

We show, in the Choquet expected utility model, that prefernece for diversification, that is, convex prefrences, 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 the core of the capacity be non-empty. The converse hodls under concavity of the utility index.

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Year of publication:	1998
Authors:	Tallon, J.-M. ; Chateauneuf, A.
Institutions:	Centre de recherche de mathématiques et économie mathématique (CERMSEM), Centre d'Économie de la Sorbonne
Subject:	UTILITY FUNCTION \| PREFERENCE CHOICES

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Series:	Papiers d'Economie Mathématique et Applications.
Type of publication:	Book / Working Paper
Notes:	14 pages
Classification:	D11 - Consumer Economics: Theory
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10005776550