Essays on some unsettled Questions of Political Economy. Джон Стюарт Милль
Читать онлайн книгу.
adjustment with other nations, on the principle of reciprocity. Until, by the common consent of nations, all restrictions upon trade are done away, a nation cannot be required to abolish those from which she derives a real advantage, without stipulating for an equivalent.
7. The case which we have just examined, is an example in how remarkable a manner every cause which materially influences exports, operates upon the prices of imports. According to the ancient theory of the balance of trade, and to the associations of the generality of what are termed practical men to this day, the sole benefit derived from commerce consists in the exports, and imports are rather an evil than otherwise. Political economists, seeing the folly of these views, and clearly perceiving that the advantage of commerce consists and must consist solely of the imports, have occasionally suffered themselves to employ language evincing inattention to the fact, that exports, though unimportant in themselves, are important by their influence on imports. So real and extensive is this influence, that every new market which is opened for any of our goods, and every increase in the demand for our commodities in foreign countries, enables us to supply ourselves with foreign commodities at a smaller cost.
Let us revert to our earliest and simplest example, but which displays the real law of interchange more luminously than any formula into which money enters; the case of simple barter. We showed, that if at the rate of 10 yards of cloth for 17 of linen, the demand of Germany amounted to 1000 times 10 yards of cloth, the two nations will trade together at that rate of interchange, provided that the linen required in England be exactly 1000 times 17 yards, neither more nor less. For the cloth and the linen will then exactly pay for one another, and nobody on either side will be obliged to offer what he has to sell at a lower rate, in order to procure what he wants to buy.
Now if the increase of wealth and population in Germany should greatly increase the demand in that country for cloth, the demand for linen in England not increasing in the same ratio, – if, for instance, Germany became willing, at the above rate, to take 1500 times 10 yards; is it not evident, that to induce England to take in exchange for this the only article which Germany by supposition has to give, the latter must offer it at a rate more advantageous to England – at 18, or perhaps 19 yards, for 10 of cloth? So that the division of the advantage becomes more and more favourable to a country, in proportion as the demand for its commodities increases in foreign countries.
It is not even necessary that the country which takes its goods, should supply it with any commodity whatever. Suppose that a country should be opened to our merchants, disposed to buy from us in abundance, but which can sell to us scarcely anything, as every commodity which it affords could be got cheaper by us from some other quarter. Nevertheless, our trade with this country will enable us to obtain from all other countries their commodities at a lower price. At the first opening of this commerce of mere exportation, we must have received in payment a large quantity of money; for which our customer will have been indemnified by other countries, in exchange for her commodities. Prices must consequently be lower in all other countries, and higher with us, than before the opening of the new branch of trade; and we therefore obtain the commodities of other countries at a less cost, both as we pay less money for them, and as that money is lower in value.
8. Another obvious application of the same principle will enable us to explain, and to bring within the dominion of strict science, the rivality of one exporting nation and another, or what is called, in the language of the mercantile system, underselling: a subject which political economists have taken little trouble to elucidate, from the habit before alluded to of disregarding almost entirely, in their purely scientific inquiries, those circumstances which affect the trade of a country by operating immediately upon the exports.
Let us revert to our old example, and to our old figures. Suppose that the trade between England and Germany in cloth and linen is established, and that the rate of interchange is 10 yards of cloth for 17 of linen. Now suppose that there arises in another country, in Flanders, for example, a linen manufacture; and that the same causes, the working of which in England and Germany has made 10 yards exchange for 17, would in England and Flanders, putting Germany out of the question, have made the rate of interchange 10 for 18. It is evident that Germany also must give 18 yards of linen for 10 of cloth, and so carry on the trade with a diminished share of the advantage, or lose it altogether. If the play of demand in England and Flanders had made the rate of interchange not 10 for 18 but 10 for 21, (10 to 20 being in Germany the comparative cost of production,) it is evident that Germany could not have maintained the competition, and would have lost, not part of her share of the advantage, but all advantage, and the trade itself.
It would be no answer to say, that Germany could probably still have found the means of importing cloth from England, by exporting something else. If she had purchased cloth with anything else, she would have purchased it dearer: as is proved by the fact, that having free choice, she found it most advantageous to purchase it with linen. When she could get 10 yards of cloth for 17 of linen, that was the mode in which she could get it with least labour. Being pressed by competition, she gave successively 17, 18, 18; but rather than give 19 yards of linen, she perhaps would prefer to give, as costing her rather less labour, 10 yards of silk, (which we will suppose to be the quantity which in England will purchase 10 yards of cloth.) It is obvious that, although Germany has found the means of supplying herself with cloth, by exporting a different article from that in which she was undersold, yet the advantage of the trade between her and England is now shared in a proportion much less favourable to Germany.
There is no difficulty in showing that the same series of consequences takes place in exactly the same manner through the agency of money. The trade in cloth and linen between England and Germany being supposed to exist as before, Flanders produces linen at a lower price than that at which Germany has hitherto afforded it. The exportation from Germany is suspended; and Germany, continuing to import cloth, pays for it in money. By so doing she lowers her own prices, and raises those in England: she has to pay more money for cloth, and to pay it in a currency of higher value. She thus suffers more and more as a consumer of cloth, until by the fall of her prices she can either afford to sell linen as cheap as Flanders, or to export some other commodity which she could not export before. In either case, her trade resumes its course, but with diminished advantage on her side. 4
It is in the mode just described, that those countries which formerly supplied Europe with manufactures, but which owed their power of doing so not to any natural and permanent advantages, but to their more advanced state of civilization as compared with other countries, have lost their pre-eminence as other countries successively attained an equal degree of civilization. Lombardy and Flanders, in the middle ages, produced some descriptions of clothing and ornament for all Europe: Holland, at a much later period, supplied ships, and almost all articles which came in ships, to most other parts of the world. All these countries have probably at this moment a much larger amount of capital than ever they had, but having been undersold by other countries, they have lost by far the greater part of the share which they had engrossed to themselves of the benefit which the world derives from commerce; and their capital yields to them in consequence a smaller proportional return. We are aware that other causes have contributed to the same effect, but we cannot doubt that this is a principal one.
As much as is really true of the great returns alleged to have been made to capital during the last war, must have arisen from a similar cause. Our exclusive command of the sea excluded from the market all by whom we should have been undersold.
The adoption by France, Russia, the Netherlands, and the United States, of a more severely restrictive commercial policy, subsequently to 1815, has done great injury undoubtedly to those countries; for the duties which they have established are intended to be, and really are, of the class termed protecting; that is to say, such as force the production of commodities by more costly processes at home, instead of suffering them to be imported from abroad. But these duties, though chiefly injurious to the countries imposing them, have also been highly injurious to England. By diminishing her exportation, or preventing it from increasing as it would otherwise have done, they have kept up the prices of all imported commodities in England, above what those prices would have fallen to if trade had been left free.
By another obvious application of the same reasoning, it will be seen, that there is a real foundation for the notion, that a country
The world at large, sellers and buyers taken together, is always a gainer by underselling. If, in the case supposed, England were compelled by a commercial treaty to exclude the linen of Flanders from her market, the total wealth of the world, if affected at all, would be diminished.
For, what is the cause which enables Flanders to undersell Germany? That Flanders, if she had the trade, would exchange linen for cloth at a rate of interchange more advantageous to England. And why can Flanders do so? It must be either because Flanders can produce the article with a less comparative quantity of labour than Germany, and therefore the total advantage to be divided between the two countries is greater in the case of Flanders than of Germany; or else because, though the total advantage is not greater, Flanders obtains a less share of it, her demand for cloth being greater, at the same rate of interchange, than that of Germany. In the former case, to exclude Flemish linen from England would be to prevent the world at large from making a greater saving of labour instead of a less. In the latter, the exclusion would be inefficacious for the only end it could be intended for, viz., the benefit of Germany, unless Flemish money were excluded from England as well as Flemish linen. For Flanders would buy English cloth, paying for it in money, until the fall of her prices enabled her to pay for it with something else: and the ultimate result would be that, by the rise of prices in England, Germany must pay a higher price for her cloth, and so lose a part of the advantage in spite of the treaty; while England would pay for German linen the same price indeed, but as the money incomes of her own people would be increased, the same money price would imply a smaller sacrifice.