Timothy Lee on the Cato blog notes that
The latest issue of Regulation magazine has a fantastic article by Peter Menell discussing the divisions in libertarian theory on copyright and patent issues. One one side is what Menel dubs the Property Rights Movement, of which Richard Epstein is a leading theoretician. They see intellectual property and more traditional property rights as fundamentally similar, and apply libertarian insights about the importance of strong property rights in tangible goods to debates over patent and copyright law. For theorists like Epstein, the need to reward the fruits of labor lie at the heart of the libertarian case for property rights, and as a consequence the argument for strong intellectual property rights is identical to the argument for tangible property rights. The other camp sees copyright and patent law as fundamentally different from tangible property rights. It includes F.A. Hayek, many “cyberlibertarians,” and Menell himself. For this camp, the fundamental argument for property rights is not about rewarding creativity so much as managing scarcity. We need strong property rights in tangible property so people can make plans about the use of scarce resources. Since inventions and creative works are non-rivalrous once created, the argument goes, property-like restrictions on their use are at best a necessary evil.The paper cited is Intellectual Property and the Property Rights Movement by Peter S. Menell.