Interest is determined by the equation between the demands of borrowers and the supply of capital offered by lenders. Or, if we take what is given as the law of profits, it is determined by wages, falling as wages rise and rising as wages fall—or, to use the phrase of Mill, by the cost of labor to the capitalist.
The bringing together of these current statements of the laws of the distribution of wealth shows at a glance that they lack the relation to each other which the true laws of distribution must have. They do not correlate and co-ordinate. Hence, at least two of these three laws are either wrongly apprehended or wrongly stated. This tallies with what we have already seen, that the current apprehension of the law of wages, and, inferentially, of the law of interest, will not bear examination. Let us, then, seek the true laws of the distribution of the produce of labor into wages, rent, and interest. The proof that we have found them will be in their correlation—that they meet, and relate, and mutually bound each other.
With profits this inquiry has manifestly nothing to do. We want to find what it is that determines the division of their joint produce between land, labor, and capital; and profits is not a term that refers exclusively to any one of these three divisions. Of the three parts into which profits are divided by political economists—namely, compensation for risk, wages of superintendence, and return for the use of capital—the latter falls under the term interest, which includes all the returns for the use of capital, and excludes everything else; wages of superintendence falls under the term wages, which includes all returns for human exertion, and excludes everything else; and compensation for risk has no place whatever, as risk is eliminated when all the transactions of a community are taken together. I shall, therefore, consistently with the definitions of political economists, use the term
