By the same law, too, the exportation of wheat is prohibited so soon as the price rises to forty-four shillings the quarter; that of rye so soon as it rises to twenty-eight shillings; that of barley so soon as it rises to twenty-two shillings; and that of oats so soon as they rise to fourteen shillings. Those several prices seem all of them a good deal too low; and there seems to be an impropriety, besides, in prohibiting exportation altogether at those precise prices at which that bounty, which was given in order to force it, is withdrawn. The bounty ought certainly either to have been withdrawn at a much lower price, or exportation ought to have been allowed at a much higher.
So far, therefore, this law seems to be inferior to the ancient system. With all its imperfections, however, we may perhaps say of it what was said of the laws of Solon, that though not the best in itself, it is the best which the interest, prejudices, and temper of the times, would admit of. It may perhaps in due time prepare the way for a better.
CHAPTER VI.
OF TREATIES OF COMMERCE.
When a nation binds itself by treaty, either to permit the entry of certain goods from one foreign country which it prohibits from all others, or to exempt the goods of one country from duties to which it subjects those of all others, the country, or at least the merchants and manufacturers of the country, whose commerce is so favoured, must necessarily derive great advantage from the treaty. Those merchants and manufacturers enjoy a sort of monopoly in the country which is so indulgent to them. That country becomes a market, both more extensive and more advantageous for their goods: more extensive, because the goods of other nations being either excluded or subjected to heavier duties, it takes off a greater quantity of theirs; more advantageous, because the merchants of the favoured country, enjoying a sort of monopoly there, will often sell their goods for a better price than if exposed to the free competition of all other nations.
Such treaties, however, though they may be advantageous to the merchants and manufacturers of the favoured, are necessarily disadvantageous to those of the favouring country. A monopoly is thus granted against them to a foreign nation; and they must frequently buy the foreign goods they have occasion for, dearer than if the free competition of other nations was admitted. That part of its own produce with which such a nation purchases foreign goods, must consequently be sold cheaper; because, when two things are exchanged for one another, the cheapness of the one is a necessary consequence, or rather is the same thing, with the dearness of the other. The exchangeable value of its annual produce, therefore, is likely to be diminished by every such treaty. This diminution, however, can scarce amount to any positive loss, but only to a lessening of the gain which it might otherwise make. Though it sells its goods cheaper than it otherwise might do, it will not probably sell them for less than they cost; nor, as in the case of bounties, for a price which will not replace the capital employed in bringing them to market, together with the ordinary profits of stock. The trade could not go on long if it did. Even the favouring country, therefore, may still gain by the trade, though less than if there was a free competition.
Some treaties of commerce, however, have been supposed advantageous, upon principles very different from these; and a commercial country has sometimes granted a monopoly of this kind, against itself, to certain goods of a foreign nation, because it expected, that in the whole commerce between them, it would annually sell more than it would buy, and that a balance in gold and silver would be annually returned to it. It is upon this principle that the treaty of commerce between England and Portugal, concluded in 1703 by Mr Methuen, has been so much commended. The following is a literal translation of that treaty, which consists of three articles only.
ART. I. His sacred royal majesty of Portugal promises, both in his own name and that of his successors, to admit for ever hereafter, into Portugal, the woollen cloths, and the rest of the woollen manufactures of the British, as was accustomed, till they were prohibited by the law; nevertheless upon this condition:
ART. II. That is to say, that her sacred royal majesty of Great Britain shall, in her own name, and that of her successors, be obliged, for ever hereafter, to admit the wines of the growth of Portugal into Britain; so that at no time, whether there shall be peace or war between the kingdoms of Britain and France, any thing more shall be demanded for these wines by the name of custom or duty, or by whatsoever other title, directly or indirectly, whether they shall be imported into Great Britain in pipes or hogsheads, or other casks, than what shall be demanded for the like quantity or measure of French wine, deducting or abating a third part of the custom or duty. But if, at any time, this deduction or abatement of customs, which is to be made as aforesaid, shall in any manner be attempted and prejudiced, it shall be just and lawful for his sacred royal majesty of Portugal, again to prohibit the woollen cloths, and the rest of the British woollen manufactures.
ART. III. The most excellent lords the plenipotentiaries promise and take upon themselves, that their above named masters shall ratify this treaty; and within the space of two months the ratification shall be exchanged.
By this treaty, the crown of Portugal becomes bound to admit the English woollens upon the same footing as before the prohibition; that is, not to raise the duties which had been paid before that time. But it does not become bound to admit them upon any better terms than those of any other nation, of France or Holland, for example. The crown of Great Britain, on the contrary, becomes bound to admit the wines of Portugal, upon paying only two-thirds of the duty which is paid for those of France, the wines most likely to come into competition with them. So far this treaty, therefore, is evidently advantageous to Portugal, and disadvantageous to Great Britain.