Abstract
In 1776 Adam Smith argued that if a country could produce a good cheaper than a second country, and if the second country could produce a different good more cheaply than the first, it would be to the advantage of both countries if they specialised in the good they could produce cheapest, and traded. For example, the tropics are more suited to growing bananas than the temperate zone and with the same amount of labour the tropics can produce far more bananas than can the U.K. On the other hand the U.K. is more suited to producing machine goods and with the same amount of labour the U.K. can produce more machinery than can a tropical country. It will be of obvious advantage to both countries to employ the division of labour and to produce the good in which each has an absolute advantage and undertake international exchange. The qualification ‘absolute’ is necessary because the question arises, as Torrens and Ricardo pointed out:1 what if a country can produce both goods in greater amount with the same labour as a second country – will trade cease under these circumstances? Ricardo argued that under these conditions it would be to the (possible) advantage of both countries if they specialised in the good in which they had a comparative advantage.
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Notes
R. Torrens, The Economists Refuted (1808), and
D. Ricardo, Principles of Political Economy (1817) chap. 7.
J. S. Mill, Principles of Political Economy (1848), bk III, chap 18;
A. Marshall, The Pure Theory of Foreign Trade (1879);
F. Y. Edgeworth, The Theory of International Values (1894).
It was discussed by Marshall in his Pure Theory of Foreign Trade (1879) and was given a mathematical treatment by P. A. Samuelson in his Foundations of Economic Analysis (Harvard U.P., Cambridge, Mass.; Oxford U.P., 1947) pp. 266-8.
The importance of this distinction with reference to the stability/instability problem in the balance of payments was first put forward by I. F. Pearce in his article, ‘The Problem of the Balance of Payments’, International Economic Review, II (1961) 1–28.
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© 1972 R. Shone
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Shone, R. (1972). Comparative Advantage. In: The Pure Theory of International Trade. Macmillan Studies in Economics. Palgrave, London. https://doi.org/10.1007/978-1-349-01405-7_2
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