produce of domestic industry, replaces, too, by every such operation, two distinct capitals; but one of them only is employed in supporting domestic industry. The capital which sends British goods to Portugal, and brings back Portuguese goods to Great Britain, replaces by every such operation only one British capital. The other is a Portuguese one. Though the returns, therefore, of the foreign trade of consumption should be as quick as those of the home trade, the capital employed in it will give but one half the encouragement to the industry or productive labor of the country.
But the returns of the foreign trade of consumption are very seldom so quick as those of the home trade. The returns of the home trade generally come in before the end of the year, and sometimes three or four times in the year. The returns of the foreign trade of consumption seldom come in before the end of the year, and sometimes not till after two or three years. A capital, therefore, employed in the home trade will sometimes make twelve operations, or be sent out and returned twelve times, before a capital employed in the foreign trade of consumption has made one. If the capitals are equal, therefore, the one will give four-and-twenty times more encouragement and support to the industry of the country than the other.
The foreign goods for home consumption may sometimes be purchased, not with the produce of domestic industry, but with some other foreign goods. These last, however, must have been purchased either immediately with the produce of domestic industry, or with something else that had been purchased with it; for, the case of war and conquest excepted, foreign goods can never be acquired, but in exchange for something that had been produced at home,
