European Business Schools Librarian's Group

Les Cahiers de Recherche,
HEC Paris

No 955: The relevance of utilirianism

Philipppe Mongin () and Marc Fleurbaey
Additional contact information
Philipppe Mongin: HEC Paris

Abstract: Author's abstract. Harsanyi invested his Aggregation Theorem and Impartial Observer Theorem with deep utilitarian sense, but Sen redescribed them as "representation theorems" with little ethical import. This negative view has gained wide acquiescence in economics. Against it, we support the utilitarian interpretation by a novel argument relative to the Aggregation Theorem. We suppose that a utilitarian observer evaluates non-risky alternatives by the sum of individual utilities and investigate his von Neumann-Morgenstern (VNM) preference on risky alternatives. Adding some technical assumptions to Harsanyi’s, we conclude that (i) this observer would use the utility sum as a VNM utility function, and crucially, (ii) any social observer would evaluate both risky and non-risky alternatives in terms of a weighted utility sum. Hence, pace Sen, VNM theory can give some interesting support to utilitarianism. The argument is conveyed by means of three theorems that encapsulate Harsanyi’s original one as a particular step.

Keywords: utilitarianism; aggregation theorem; impartial observer theorem; cardinal utility; vnm utility; harsanyi; sen.

26 pages, November 26, 2011

Full text files

CR_955_Mongin.pdf PDF-file 

Download statistics

Questions (including download problems) about the papers in this series should be directed to Antoine Haldemann ()
Report other problems with accessing this service to Sune Karlsson ().

This page generated on 2018-02-22 16:53:00.