While searching through old posts at Against Politics, one of my common haunts, I came across an interview featuring Jan Narveson, professor of philosophy emeritus at the University of Waterloo. Dr. Narveson, whose work I encountered via the work of Robert Nozick and David Gauthier, is an anarcho-capitalist and the author of the influential The Libertarian Idea. Among other things, Dr. Narveson addresses in the interview why natural rights should be rejected and offers his list of the most influential texts in libertarian political philosophy. Here is the link to the interview, a significant portion of which I excerpt here:
The contractarian and utilitarian approaches to libertarianism are often confused. What are the differences between these two views?
Contractarian is not the same as utilitarian, and does not give similar results. The Utilitarian, as in Bentham and Mill, holds that (1) everyone’s utility is cardinally measurable, in principle, and (2) for social and moral purposes, we should count an equal amount of anyone’s utility as equal to anyone else’s, intrinsically.
Utilitarianism is, actually, equivalent to another natural rights perspective—that’s why I stopped being a utilitarian.