Page:Principles of Political Economy Vol 2.djvu/210

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190
book iii.chapter xxii.§ 3.

vertible bank notes, is in like manner produced by those extensions of credit, which, as was so fully shown in a preceding chapter, have the same effect on prices as an increase of the currency. Whenever circumstances have given such an impulse to the spirit of speculation as to occasion a great increase of purchases on credit, money prices rise, just as much as they would have risen if each person who so buys on credit had bought with money. All the effects, therefore, must be similar. As a consequence of high prices, exportation is checked and importation stimulated; though in fact the increase of importation seldom waits for the rise of prices which is the consequence of speculation, inasmuch as some of the great articles of import are usually among the things in which speculative overtrading first shows itself. There is, therefore, in such periods, usually a great excess of imports over exports; and when the time comes at which these must be paid for, the exchanges become unfavourable, and gold flows out of the country. In what precise manner this efflux of gold takes effect on prices, depends on circumstances of which we shall presently speak more fully; but that its effect is to make them recoil downwards, is certain and evident. The recoil, once begun, generally becomes a total rout, and the unusual extension of credit is rapidly exchanged for an unusual contraction of it. Accordingly, when credit has been imprudently stretched, and the speculative spirit carried to excess, the turn of the exchanges, and consequent pressure on the banks to obtain gold for exportation, are generally the proximate cause of the catastrophe. But these phenomena, though a conspicuous accompaniment, are no essential part, of the collapse of credit called a commercial crisis; which, as we formerly showed,[1] might happen to as great an extent, and is quite as likely to happen, in a country, if any such there were, altogether destitute of foreign trade.

  1. Supra, pp. 54–6.