Page:Principles of Political Economy Vol 1.djvu/553

Rh it. If a few persons had steam-engines of superior power to all others in existence, but limited by physical laws to a number short of the demand, the rent which a manufacturer would be willing to pay for one of these steam-engines could not be looked upon as an addition to his outlay, because by the use of it he would save in his other expenses the equivalent of what it cost him: without it he could not do the same quantity of work, unless at an additional expense equal to the rent. The same thing is true of land. The real expenses of production are those incurred on the worst land, or by the capital employed in the least favourable circumstances. This land or capital pays, as we have seen, no rent; but the expenses to which it is subject, cause all other land or agricultural capital to be subjected to an equivalent expense in the form of rent. Whoever does pay rent gets back its full value in extra advantages, and the rent which he pays does not place him in a worse position than, but only in the same position as, his fellow-producer who pays no rent, but whose instrument is one of inferior efficiency.

We have now completed the exposition of the laws which regulate the distribution of the produce of land, labour, and capital, as far as it is possible to discuss those laws independently of the instrumentality by which in a civilized society the distribution is effected; the machinery of Exchange and Price. The more complete elucidation and final confirmation of the laws which we have laid down, and the deduction of their most important consequences, must be preceded by an explanation of the nature and working of that machinery—a subject so extensive and complicated as to require a separate Book.