John Locke qualified his statement that we own what we produce with his famous "proviso" that there be "as much and as good left in common for others." A few pages later, writing in the last decade of the seventeenth century, he said that private appropriations of land are actually not restricted, because anyone who is dissatisfied with the land available to him in Europe can always go to America, where there is plenty of unclaimed land.[12] Locke does not address the issue of rights to land when land is scarce.

One tradition in classical liberalism concerning claims to land is that of the "homesteading libertarians," as exemplified by Murray Rothbard, who say that there is really no need to be concerned with Locke's proviso. Natural opportunities belong to whoever first appropriates them, regardless of whether opportunities of equal value are available to others.

The other tradition is that of the "geoists," as inspired if not exemplified by Henry George, who say that, whenever natural opportunities are scarce, each person has an obligation to ensure that the per capita value of the natural opportunities that he leaves for others is as great as the value of the natural opportunities that he claims for himself. Any excess in one's claim generates an obligation to compensate those who thereby have less. George actually proposed the nearly equivalent idea, that all or nearly all of the rental value of land should be collected in taxes, and all other taxes should be abolished. The geoist position as I have expressed it emphasizes the idea that, at least when value generated by public services is not an issue, rights to land are fundamentally rights of individuals, not rights of governments.

The second fundamental problem with the position of the homesteading libertarians is that, even if there were previously unsettled land to be allocated, say a new continent emerging from the ocean, first grabbing would make no sense as a criterion for allocating land.

It would be inefficient, for one thing, as people stampeded to do whatever was necessary to establish their claims. But that is not decisive because, if we are concerned with justice, it might be necessary for us to tolerate inefficiency. But the homesteading libertarian view makes no sense in terms of justice. "I get it all because I got here first," isn't justice.

Justice -- the balancing of the scales -- is the geoist position, "I get exclusive access to this natural opportunity because I have left natural opportunities of equal value for you." (How one compares, in practice, the value of different natural opportunities is a bit complex. If you really want to know, you can invite me back for another lecture.)

Justice is thus a regime in which persons have the greatest possible individual liberty, and all acknowledge an obligation to share equally the value of natural opportunities. Justice is economic reform--the abolition of all taxes on labor and capital, the acceptance of individual responsibility, the creation of institutions that will provide equal sharing the value of natural opportunities....   Read the entire article

Fred E. Foldvary — The Ultimate Tax Reform: Public Revenue from Land Rent

The libertarian thinker Murray Rothbard thought it was impossible to tax rent, since doing so would drive land prices to zero, also eradicating rent. But that proposition would apply equally to private rent collection by landlords of mobile homes, who would by that logic be unable to collect rent. Rent in fact does not get reduced when taxed. (See the book Critics of Henry George (ed. Robert Andelson) for an analysis of how Murray Rothbard, Spencer Heath, Friedrich Hayek, Ludwig von Mises, and other libertarians viewed and criticized public revenue from land rent.) My suggestion to tap 80 percent of the rent would avoid the Rothbard criticism. Even Henry George proposed the owner keep some of the rent. The accusation that land value must drop to zero is not an argument against taxing some or even most of the geo-rent. ... read the whole document