I typically don't use the distinction 'positive' and 'negative' liberty, because negative sounds bad and positive sounds good, and I don't think that the terminology ought to prejudice us one way or the other. So I think the more descriptive term is 'liberty rights' versus 'welfare rights'. So, liberty rights are freedom-of-action type rights, and welfare rights are rights-to-stuff, of various kinds...And, property rights are not rights-to-stuff. I think that's one of the key misunderstandings about property. Property rights are the rights to liberty within your jurisdiction.