Abstract

One response to Derek Parfit's invokes the relation of . Since parity is a form of in John Broome's terms, three doubts which Broome raises about accounts involving incommensurateness in Weighing Lives pose a challenge for this response. I discuss two of these. They emerge from a discussion of various intuitions about . I argue that an account based on parity may be no less consistent with Broome's intuitions than is his own vagueness view