The Wealth of Nations by Part 4 Chapter 7 Page 120

In order, however, to obtain this relative advantage in the colony trade, in order to execute the invidious and malignant project of excluding as much as possible other nations from any share in it, England, there are very probable reasons for believing, has not only sacrificed a part of the absolute advantage which she, as well as every other nation, might have derived from that trade, but has subjected herself both to an absolute and to a relative disadvantage in almost every other branch of trade.

When, by the Act of Navigation, England assumed to herself the monopoly of the colony trade, the foreign capitals which had before been employed in it were necessarily withdrawn from it. The English capital, which had before carried on but a part of it, was now to carry on the whole. The capital which had before supplied the