Note 1184 — Chapter II · : THE THEORY OF RENT AND ITS APPLICATIONS

“The sum paid for the use of land differs in no material respect from the sum paid for the use of other kinds of capital—a machine, for example. Although the land or the machine has to be returned to its rightful owner in the same condition as it was received, one ought to pay something just because such capitals are economically scarce; in other words, the amount existing at any one time or place is not greater than the demand. What differentiates land from machinery is that savings might easily be employed in turning out new machinery, but cannot very well increase the quantity of land in existence, or at any rate cannot transform existing soils in a manner that is profitable.” (Pareto, Cours d’Économie politique, vol. ii, § 759.) Marshall makes use of analogous terms: “If the supply of any factor of production is limited, and incapable of much increase by man’s effort in any given period of time, then the income to be derived from it is to be regarded as of the nature of rent rather than profits in inquiries as to the action of economic causes during that period; although for longer periods it may rightly be regarded as profits which are required to cover part of the expenses of production and which therefore directly enter into those expenses.” (Principles, 1st ed., Book VI, chap. 3, § 1.)