§ 2. Distinction between Variations in the Exchanges which are self-adjusting and those which can only be rectified through Prices.

It might be supposed at first sight that when the exchange is unfavorable, or, in other words, when bills are at a premium, the premium must always amount to a full equivalent for the cost of transmitting money. But a small excess of imports above exports, or any other small amount of debt to be paid to foreign countries, does not usually affect the exchanges to the full extent of the cost and risk of transporting bullion. The length of credit allowed generally permits, on the part of some of the debtors, a postponement [pg 416] of payment, and in the mean time the balance may turn the other way, and restore the equality of debts and credits without any actual transmission of the metals. And this is the more likely to happen, as there is a self-adjusting power in the variations of the exchange itself. Bills are at a premium because a greater money value has been imported than exported. But the premium is itself an extra profit to those who export. Besides the price they obtain for their goods, they draw for the amount and gain the premium. It is, on the other hand, a diminution of profit to those who import. Besides the price of the goods, they have to pay a premium for remittance. So that what is called an unfavorable exchange is an encouragement to export, and a discouragement to import. And if the balance due is of small amount, and is the consequence of some merely casual disturbance in the ordinary course of trade, it is soon liquidated in commodities, and the account adjusted by means of bills, without the transmission of any bullion. Not so, however, when the excess of imports above exports, which has made the exchange unfavorable, arises from a permanent cause. In that case, what disturbed the equilibrium must have been the state of prices, and it can only be restored by acting on prices. It is impossible that prices should be such as to invite to an excess of imports, and yet that the exports should be kept permanently up to the imports by the extra profit on exportation derived from the premium on bills; for, if the exports were kept up to the imports, bills would not be at a premium, and the extra profit would not exist. It is through the prices of commodities that the correction must be administered.

Disturbances, therefore, of the equilibrium of imports and exports, and consequent disturbances of the exchange, may be considered as of two classes: the one casual or accidental, which, if not on too large a scale, correct themselves through the premium on bills, without any transmission of the precious metals; the other arising from the general state of prices, which can not be corrected without the subtraction [pg 417] of actual money from the circulation of one of the countries, or an annihilation of credit equivalent to it.

It remains to observe that the exchanges do not depend on the balance of debts and credits with each country separately, but with all countries taken together. The United States may owe a balance of payments to England; but it does not follow that the exchange with England will be against the United States, and that bills on England will be at a premium; because a balance may be due to the United States from Holland or Hamburg, and she may pay her debts to England with bills on those places; which is technically called arbitration of exchange. There is some little additional expense, partly commission and partly loss of interest in settling debts in this circuitous manner, and to the extent of that small difference the exchange with one country may vary apart from that with others.

A common use of bills of exchange is that by which, when three countries are concerned, two of them may strike a balance through the third, if both countries have dealings with that third country. New York merchants may buy of China, but China may not be buying of New York, although both may have dealings with London.

A, we will suppose, is a buyer of £1,000 worth of tea from F, in Hong-Kong; B is an exporter of wheat (£1,000) to C in London; D has sent £1,000 worth of cotton goods to E in Hong-Kong. A can now pay F through London without the transmission of coin. A buys B's claim on C for £1,000, and sends it to F. E wishes to pay D in London for the cotton goods he bought of him; therefore, he buys from F for £1,000 the claim he now holds (i.e., a bill of exchange on London) against C for £1,000. E sends it to D, and, when D collects it from C, the whole circle of exchanges is completed without the transmission of the precious metals.

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