Full Idea
Hare has suggested that a fairly tight form of utilitarianism can be obtained from universalised prescriptivism.
Gist of Idea
Universalised prescriptivism could be seen as implying utilitarianism
Source
report of Richard M. Hare (Freedom and Reason [1963]) by Philippa Foot - Does Moral Subjectivism Rest on a Mistake? p.191
Book Reference
Foot,Philippa: 'Moral Dilemmas' [OUP 2002], p.191
A Reaction
All the benefits of Bentham, Kant and Hume, in one neat package! Since I take all three of them to be wrong about ethics, that counts against this idea.