Essays on Some Unsettled Questions of Political Economy

Essay I.

OF THE LAWS OF INTERCHANGE BETWEEN NATIONS; AND THE DISTRIBUTION OF THE GAINS OF COMMERCE AMONG THE COUNTRIES OF THE COMMERCIAL WORLD.

Of the truths with which political economy has been enriched by Mr. Ricardo, none has contributed more to give to that branch of knowledge the comparatively precise and scientific character which it at present bears, than the more accurate analysis which he performed of the nature of the advantage which nations derive from a mutual interchange of their productions. Previously to his time, the benefits of foreign trade were deemed, even by the most philosophical enquirers, to consist in affording a vent for surplus produce, or in enabling a portion of the national capital to replace itself with a profit. The futility of the theory implied in these and similar phrases, was an obvious consequence from the speculations of writers even anterior to Mr. Ricardo. But it was he who first, in the chapter on Foreign Trade, of his immortal Principles of Political Economy and Taxation, substituted for the former vague and unscientific, if not positively false, conceptions with regard to the advantage of trade, a philosophical exposition which explains, with strict precision, the nature of that advantage, and affords an accurate measure of its amount.

He shewed, that the advantage of an interchange of commodities between nations consists simply and solely in this, that it enables each to obtain, with a given amount of labour and capital, a greater quantity of all commodities taken together. This it accomplishes by enabling each, with a quantity of one commodity which has cost it so much labour and capital, to purchase a quantity of another commodity which, if produced at home, would have required labour and capital to a greater amount. To render the importation of an article more advantageous than its production, it is not necessary that the foreign country should be able to produce it with less labour and capital than ourselves. We may even have a positive advantage in its production: but, if we are so far favoured by circumstances as to have a still greater positive advantage in the production of some other article which is in demand in the foreign country, we may be able to obtain a greater return to our labour and capital by employing none of it in producing the article in which our advantage is least, but devoting it all to the production of that in which our advantage is greatest, and giving this to the foreign country in exchange for the other. It is not a difference in the absolute cost of production, which determines the interchange, but a difference in the comparative cost. It may be to our advantage to procure iron from Sweden in exchange for cottons, even although the mines of England as well as her manufactories should be more productive than those of Sweden; for if we have an advantage of one-half in cottons, and only an advantage of a quarter in iron, and could sell our cottons to Sweden at the price which Sweden must pay for them if she produced them herself, we should obtain our iron with an advantage of one-half, as well as our cottons. We may often, by trading with foreigners, obtain their commodities at a smaller expense of labour and capital than they cost to the foreigners themselves. The bargain is still advantageous to the foreigner, because the commodity which he receives in exchange, though it has cost us less, would have cost him more. As often as a country possesses two commodities, one of which it can produce with less labour, comparatively to what it would cost in a foreign country, than the other; so often it is the interest of the country to export the first mentioned commodity and to import the second; even though it might be able to produce both the one and the other at a less expense of labour than the foreign country can produce them, but not less in the same degree; or might be unable to produce either except at a greater expense, but not greater in the same degree.

On the contrary, if it produces both commodities with greater facility, or both with greater difficulty, and greater in exactly the same degree, there will be no motive to interchange.

"If the cloth and the corn, each of which required 100 days' labour in Poland, required each 150 days' labour in England; it would follow, that the cloth of 150 days' labour in England, if sent to Poland, would be equal to the cloth of 100 days' labour in Poland: if exchanged for corn, therefore, it would exchange for the corn of only 100 days' labour. But the corn of 100 days' labour in Poland, was supposed to be the same quantity with that of 150 days' labour in England. With 150 days' labour in cloth, therefore, England would only get as much corn in Poland as she could raise with 150 days' labour at home; and she would, in importing it, have the cost of carriage besides. In these circumstances no exchange would take place.

"If, on the other hand, while the cloth produced with 100 days' labour in Poland was produced with 150 days' labour in England, the corn which was produced in Poland with 100 days' labour could not be produced in England with less than 200 days' labour; an adequate motive to exchange would immediately arise. With a quantity of cloth which England produced with 150 days' labour, she would be able to purchase as much corn in Poland as was there produced with 100 days' labour; but the quantity, which was there produced with 100 days' labour, would be as great as the quantity produced in England with 200 days' labour.

"The power of Poland would be reciprocal. With a quantity of corn which cost her 100 days' labour, equal to the quantity produced in England by 200 days' labour, she could in the supposed case purchase in England the produce of 200 days' labour in cloth." But "the produce of 150 days' labour in England in the article of cloth would be equal to the produce of 100 days' labour in Poland ."

The remainder of what Mr. Ricardo has done for the philosophical exposition of the principles of foreign trade, is to shew, that the truth of the propositions now recapitulated is not affected by the introduction of money as a medium of exchange; the precious metals always tending to distribute themselves in such a manner throughout the commercial world, that every country shall import all that it would have imported, and export all that it would have exported, if exchanges had taken place, as in the example above supposed, by barter.

To this branch of the subject we shall, in the sequel of this essay, return. At present it will be more convenient that we should continue to suppose, that exchanges take place by the direct trucking of one commodity against another.

It is established, that the advantage which two countries derive from trading with each other, results from the more advantageous employment which thence arises, of the labour and capital--for shortness let us say the labour--of both jointly. The circumstances are such, that if each country confines itself to the production of one commodity, there is a greater total return to the labour of both together; and this increase of produce forms the whole of what the two countries taken together gain by the trade.

It is the purpose of the present essay to inquire, in what proportion the increase of produce, arising from the saving of labour, is divided between the two countries.

This question was not entered into by Mr. Ricardo, whose attention was engrossed by far more important questions, and who, having a science to create, had not time, or room, to occupy himself with much more than the leading principles. When he had done enough to enable any one who came after him, and who took the necessary pains, to do all the rest, he was satisfied. He very rarely followed out the principles of the science into the ramifications of their consequences. But we believe that to no one, who has thoroughly entered into the spirit of his discoveries, will even the minutiae of the science offer any difficulty but that which is constituted by the necessity of patience and circumspection in tracing principles to their results.

Mr. Ricardo, while intending to go no further into the question of the advantage of foreign trade than to show what it consisted of, and under what circumstances it arose, unguardedly expressed himself as if each of the two countries making the exchange separately gained the whole of the difference between the comparative costs of the two commodities in one country and in the other. But, the whole gain of both countries together, consisting in the saving of labour; and the saving of labour being exactly equal to the difference between the costs, in the two countries, of the one commodity as compared with the other; the two countries taken together gain no more than this difference: and if either country gains the whole of it, the other country derives no advantage from the trade.

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