This article considers measures of individual welfare change for projects that change the state distribution of prices and incomes. For a consumer whose preferences satisfy the expected utility hypothesis, we investigate whether there is an increasing function of the state-contingent...

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...