Law Commons^™

Aggregating Moral Preferences, Matthew D. Adler

Faculty Scholarship

Preference-aggregation problems arise in various contexts. One such context, little explored by social choice theorists, is metaethical. “Ideal-advisor” accounts, which have played a major role in metaethics, propose that moral facts are constituted by the idealized preferences of a community of advisors. Such accounts give rise to a preference-aggregation problem: namely, aggregating the advisors’ moral preferences. Do we have reason to believe that the advisors, albeit idealized, can still diverge in their rankings of a given set of alternatives? If so, what are the moral facts (in particular, the comparative moral goodness of the alternatives) when the advisors do diverge? …

Book Review, Matthew D. Adler

Faculty Scholarship

No abstract provided.

Harsanyi 2.0, Matthew D. Adler

Faculty Scholarship

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 interpersonal comparability. A different branch of welfare economics, for example optimal tax theory, uses “social welfare functions” (SWFs) to compare social states and governmental policies. Interpersonally comparable utility numbers provide the input for SWFs. But this scholarly tradition has never adequately explained the basis for these numbers.

John Harsanyi, in his work on so-called “extended preferences,” advanced a fruitful …

Inequality And Uncertainty: Theory And Legal Applications, Matthew D. Adler, Chris William Sanchirico

Faculty Scholarship

"Welfarism" is the principle that social policy should be based solely on individual well-being, with no reference to 'fairness" or "rights." The propriety of this approach has recently been the subject of extensive debate within legal scholarship. Rather than contributing (directly) to this debate, we identify and analyze a problem within welfarism that has received far too little attentioncall this the "ex ante/ex post" problem. The problem arises from the combination of uncertainty-an inevitable feature of real policy choice-and a social preference for equality. If the policymaker is not a utilitarian, but rather has a "social welfare function" that is …