This paper reviews the welfarist approach to population ethics. We provide an overview of the critical-level utilitarian population principles and their generalized counterparts, examine important properties of these principles and discuss their relationships to other variable-population...

A number of studies have evaluated the social welfare impact of price and income changes using equivalent incomes that are computed at some reference price vector, and an aggregator with these equivalent incomes as arguments in place of a social welfare function. This paper investigates the...

Employing a general equilibrium framework, Blackorby and Murty [2007] prove that, with a monopoly and under one hundred percent profit taxation and uniform lump-sum transfers, the utility possibility sets of economies with unit and ad valorem taxes are identical. This welfare-equivalence is in...

Intertemporal social-evaluation rules provide us with social criteria that can be used to assess the relative desirability of utility distributions across generations. The trade-offs between the well-being of different generations implicit in each such rule reflect the underlying ethical...

This article presents a proof of Arrow's Theorem which highlights the theorem's relationship to welfarism and which emphasizes its underlying geometric structure. In addition, this method of proof is adapted to provide a proof of a single-preference-profile version of Arrow's Theorem. The...