But the diminution of money in one country, and its increase in another, do not operate on the price of one commodity only, but on the prices of all, and therefore the price of wine and cloth will be both raised in England, and both lowered in Portugal. The price of cloth from being 45_l._ in one country, and 50_l._ in the other, would probably fall to 49_l._ or 48_l._ in Portugal, and rise to 46_l._ or 47_l._ in England, and not afford a sufficient profit after paying a premium for a bill, to induce any merchant to import that commodity. It is thus that the money of each country is apportioned to it in such quantities only as may be necessary to regulate a profitable trade of barter. England exported cloth in exchange for wine, because by so doing, her industry was rendered more productive to her; she had more cloth and wine than if she had manufactured both for herself; and Portugal imported cloth, and exported wine, because the industry of Portugal could be more beneficially employed for both countries in producing wine. Let there be more difficulty in England in producing cloth, or in Portugal in producing wine, or let there be more facility in England in producing wine, or in Portugal in producing cloth, and the trade must immediately cease. No change whatever takes place in the circumstances of Portugal; but England finds that she can employ her labour more productively in the manufacture of wine, and instantly the trade of barter between the two countries changes. Not only is the exportation of wine from Portugal stopped, but a new distribution of the precious metals takes place, and her importation of cloth is also prevented. Both countries would probably find it their interest to make their own wine and their own cloth; but this singular result would take place: in England, though wine would be cheaper, cloth would be elevated in price, more would be paid for it by the consumer; while in Portugal the consumers, both of cloth and of wine, would be able to purchase those commodities cheaper. In the country where the improvement was made, prices would be enhanced; in that where no change had taken place, but where they had been deprived of a profitable branch of foreign trade, prices would fall. This, however, is only a seeming advantage to Portugal, for the quantity of cloth and wine together produced in that country would be diminished, while the quantity produced in England would be increased. Money would in some degree have changed its value in the two countries--it would be lowered in England, and raised in Portugal. Estimated in money, the whole revenue of Portugal would be diminished; estimated in the same medium, the whole revenue of England would be increased.