'Unearned income' is a term coined by
Henry George to popularize the economic concept of
land rent and
'rent' generally. George modified
John Stuart Mill's term '
unearned increment of land' to broaden the concept to include all land rent, not just increases in land price. In
economics, 'unearned income' has different meanings and implications depending on the theoretical framework used. To
classical economists, with their emphasis on dynamic competition, income not subject to competition, mainly income from land titles, is '
economic rent' or unearned income. According to certain conceptions of the
Labor Theory of Value, it may refer to all income that is not an immediate result of labor. In a
neoclassical framework, it may mean income not attributable to the normal return to a factor of production. Generally, it may refer to
windfall profits, such as when population growth increases the value of a plot of land. Classical political economists, such as
Adam Smith and
John Locke, viewed land as distinct from other forms of property because humans did not produce it. Land ownership, in the sense of political economy, could refer to ownership over any natural phenomena, including
air rights,
water rights,
drilling rights, or
spectrum rights. Classics like
John Stuart Mill were also concerned about monopolies, both
natural monopolies and artificial ones, and didn't consider their incomes entirely earned. In
Marxian economics and related schools, unearned income originates from the
surplus value produced by an economy, where "surplus value" refers to value beyond what is needed for subsistence. As such, individuals and groups who subsist on unearned income are characterized as being in an exploitative relationship because the unearned income they receive is not generated by their effort or contribution (hence why their income is "unearned"). The existence of unearned income from property ownership underpins the Marxist class analysis of
capitalism, in which unearned income and exploitation are viewed as inherent to capitalist production. ==United States==