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The Lockean proviso is a feature of John Locke's labour theory of property which says that, whilst individuals have a right to homestead private property from nature by working on it, they can do so only "...at least where there is enough, and as good, left in common for others". The phrase "Lockean proviso" was coined by libertarian political philosopher Robert Nozick in ''Anarchy, State, and Utopia''.〔Nozik, Robert (1971). ''Anarchy, State, and Utopia''. p. 175.〕 It is based on the ideas elaborated by John Locke in his ''Second Treatise of Government''—that self-ownership allows a person the freedom to mix his or her labor with natural resources, thus converting common property into private property. Locke concludes that people need to be able to protect the resources they are using to live on, their property, and that this is a natural right. Nozick used this idea to form his Lockean proviso which governs the initial acquisition of property in a society. But in order for his ideas of ownership of property to get off the ground and be cogent, he devised the criterion to determine what makes property acquisition just, which is the proviso. The proviso says that though every appropriation of property is a diminution of another's rights to it, it is acceptable as long as it does not make anyone worse off than they would have been without any private property. 〔http://plato.stanford.edu/entries/social-minimum/#2.2〕 Locke's proviso has been used by geoists and socialists to point to land acquisition as illegitimate without compensation. In geoism, the possession of land is proper only so long as the market rent is paid to the relevant community. If a plot of land has a positive rent, that implies that there is not land of similar quality freely available to others. Libertarians such as Murray Rothbard have accepted Locke's other views on property whilst rejecting the Lockean proviso. == See also == *Georgism *Geolibertarianism 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lockean proviso」の詳細全文を読む スポンサード リンク
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