It is not self-evident why the result of labor mixing should be a gain of property rights in the object rather than a loss of the labor itself

Locke’s argument is not without difficulties. Jeremy Waldron (1983) argued that the idea of mixing one’s labor is incoherent—actions cannot be mixed with objects. P. J. Proudhon (1840) argued that if labor was important, the second labor on an object should ground a property right in an object as reliably as the first labor. Nozick (1974) asked why labor mixing generated property rights rather than a loss of labor. Waldron (1983) and Perry (1978) have argued that mixing one’s labor with an unown