This paper aims at exploring, in a formal way, Bentham's statement that “the pleasure of gaining is not equal to the evil of losing”, which belongs to those aspects of the principle of utility left aside by Jevon's reconstruction. Consequently, the agent's preference order will be viewed as...

Utilitarianism represents a major reference to which Sen's writings refer back when it comes to the ethics of collective choices. Which utilitarianism is it; Sentham and Sidgwick's historical utilitarianism, the utilitarianism impregnated with marginal calculation a la Edgeworth, or the...