As to the alternative so frequently discussed, whether it is preferable to make a large percentage of profit on the sale of a small quantity of goods, or a small percentage on a large quantity, we find that, in the lower stages of civilization, the former is preferred, and the latter in the higher.(648) And, indeed, the latter is not only more humane, but, in the long run, it is more profitable to the person who adopts it as his rule in business. In the case of commodities, he now runs but little risk from a change of fashion, because the fashions of the masses change much less rapidly than those of the upper circles of society. In the case of indispensable goods, on the other hand, he may now calculate with more certainty on the increase of population, and, therefore, on a future market for his wares. Competition, which in former times, devoted all its efforts to bringing about the exclusion, by law, of all rivals, is now engaged, principally, in devising means of surpassing them by superiority of workmanship, and in thus increasing the power of the real sources of a nation’s wealth. Section CIX. Effect Of A Decline Of Price Below Cost. If the market price sinks below the cost of production, the producer naturally suffers a loss, and diminishes his stock as soon as possible. That whole establishments engaged in industry should forsake a branch of it which is suffering from depression and enter a flourishing one, must ever remain a rare exception.(649) But the discouraged manufacturer may delay renewing his stock on hand,(650) replacing his machinery by new machinery; he may dismiss some of his workmen and diminish the number of days during which the others shall work. Moreover, most industries are operated by means of borrowed capital, capital which must therefore, be returned to the lender. Under certain circumstances, however, the industry may be continued for some time, even at a real loss,(651) so long as the loss of interest etc., which would follow the entire suspension of the work, exceeds the loss produced by the lowering of price, but hardly any longer. If the supply of the commodity the price of which has fallen has been diminished, the subsequent result depends on the causes which, in the first place, brought about the fall in price. If the diminution in price was caused solely by a too great supply, when this superabundant supply is gotten rid of, the price will rise again.(652) If it were produced by a decrease in the value in use of the commodity, the diminution of the supply can restore the former state of things only in so far as at least a part of the purchasers ascribe to the commodity the same value in use as before.(653) Lastly, if the lowering of the price came from a decrease in the number of buyers, or from a decrease in their ability to purchase, the former price will be restored when production has been adapted to a