failure, in this most precarious trade, are a set off against great occasional profits. If the corn-dealer were to sell his stores, during a dearth, at a lower price than that which the competition of the consumers assigns to him, he would make a sacrifice, to charity or philanthropy, of the fair profits of his employment, which may he quite as reasonably required from any other person of equal means. His business being a useful one, it is the interest of the public that the ordinary motives should exist for carrying it on, and that neither law nor opinion should prevent an operation beneficial to the public from being attended with as much private advantage as is compatible with full and free competition.
It appears, then, that the fluctuations of values and prices arising from variations of supply, or from alterations in real (as distinguished from speculative) demand, may be expected to become more moderate as society advances. With regard to those which arise from miscalculation, and especially from the alternations of undue expansion and excessive contraction of credit, which occupy so conspicuous a place among commercial phenomena, the same thing cannot be affirmed with equal confidence. Such vicissitudes, beginning with irrational speculation and ending with a commercial crisis, have not hitherto become either less frequent or less violent with the growth of capital and extension of industry. Rather they may be said to have become more so: in consequence, as is often said, of increased competition; but, as I prefer to say, of a low rate of profits and interest, which makes capitalists dissatisfied with the ordinary course of safe mercantile gains. The connexion of this low rate of profit with the advance of population and accumulation, is one of the points to be illustrated in the ensuing chapters.