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,