 Classical libertarians such as Nozick usually advocate a system in which there are exclusive property rights, with the role of the government restricted to the protection of these property rights. The property rights commonly rule out taxation for purposes other than raising the funds necessary to protect property rights. One of the strongest critiques of any attempt to institute such a system of legally protected strong property rights comes, as we have seen, from Nozick’s theory itself—there seems no obvious reason to give strong legal protection to property rights which have arisen through violations of the just principles of acquisition and transfer. But putting this critique to one side for a moment, what other arguments are made in favor of exclusionary property rights?