values and consumer preferences, the latter being frequently described using value functions, also known as utility functions …

In most economics textbooks there is a gap between the non-existence of utility functions and the existence of … continuous utility functions, although upper semi-continuity is sufficient for many purposes. Starting from a simple constructive … the existence of upper semi-continuous utility functions on a wide class of domains. Although links between utility theory …

)-expected utility theory. When individual preference satisfies a given invariance property, his utility function is solution of a … utility function and its invariance property. More precisely, invariance with respect to two transformations uniquely … determines the individual utility function. We provide examples of such transformations for CARA or CRRA utility, but also with …

: they consider that utilitarianism deals with 'utility' but disregards justice. Such an interpretation appears when they …

utilitarianism to preferences utilitarianism and towards post-welfarist approaches is the following. Utility is defi-ned normatively …

this theorem to explain the well-known problems of utility and decision theories, such as risk aversion, the underweighting …