Cost-benefit analysis is routinely used by government agencies in order to evaluate projects, but it remains controversial among academics. The standard defense appeals to the Pareto standard or the Kaldor-Hicks standard, and assumes that agencies should respect people's actual preferences, as...

How should we make interpersonal comparisons of well-being levels and differences? One branch of welfare economics eschews such comparisons, which are seen as impossible or unknowable; normative evaluation is based upon criteria such as Pareto or Kaldor-Hicks efficiency that require no...

This chapter reviews a range of topics connected to the justification of government regulation, including: the definition of “regulation”; welfarism, Kaldor-Hicks efficiency, and the Pareto principles; the fundamental theorems of welfare economics and the “market failure” framework for...

We introduce a new "different lives" survey format, which asks respondents to rank hypothetical lives described in terms of longevity, health, happiness, income, and other elements of the quality of life. In this short paper, we show that the format is of policy relevance whether a mental state,...

Decision theory seems to offer a very attractive normative framework for individual and social choice under uncertainty. The decisionmaker should think of her choice situation, at any given moment, in terms of a set of possible outcomes, that is, specifications of the possible consequences of...

Should equality be viewed from a lifetime or "sublifetime" perspective? In measuring the inequality of income, for example, should we measure the inequality of lifetime income or of annual income? In characterizing a tax as "progressive" or "regressive," should we look to whether the annual tax...

Standard cost-benefit analysis (CBA) is insensitive to distributional concerns. A policy that improves the lives of the rich, and makes the poor yet worse off, will be approved by CBA as long as the policy’s aggregate monetized benefits are positive. Distributional weights offer an apparent...

The Pigou-Dalton (PD) principle recommends a non-leaky, non-rank-switching transfer of goods from someone with more goods to someone with less. This Article defends the PD principle as an aspect of distributive justice — enabling the comparison of two distributions, neither completely equal,...

Can we measure inequity? Can we arrive at a number or numbers capturing the extent to which a given society is equitable or inequitable? Sometimes such questions are answered with a “no”: equity is a qualitative, non-numerical consideration. This Article offers a different perspective. The...