I have already attempted to shew, that when any cause raises the prices of all commodities in general, the effects are nearly similar to a fall in the value of money. If money falls in value, all commodities rise in price; and if the effect is confined to one country, it will affect its foreign commerce in the same way as a high price of commodities caused by general taxation; and therefore in examining the effects of a low value of money confined to one country, we are also examining the effects of a high price of commodities confined to one country. Indeed Adam Smith was fully aware of the resemblance between these two cases, and consistently maintained that the low value of money, or, as he calls it, of silver in Spain, in consequence of the prohibition against its exportation, was very highly prejudicial to the manufactures and foreign commerce of Spain.
"But that degradation in the value of silver, which being the effect either of the peculiar situation, or of the political institutions of a particular country, takes place only in that country, is a matter of very great consequence, which, far from tending to make any body really richer, tends to make every body really poorer. The rise in the money price of all commodities, which is in this case peculiar to that county, tends to discourage more or less every sort of industry which is carried on within it, and to enable foreign nations, by furnishing almost all sorts of goods for a smaller quantity of silver than its own workmen can afford to do, to undersell them not only in the foreign, but even in the home market." Vol. ii. page 278.
One, and I think the only one of the disadvantages of a low value of silver in a country, proceeding from a forced abundance, has been ably explained by Dr. Smith. If the trade in gold and silver were free, "the gold and silver which would go abroad, would not go abroad for nothing, but would bring back an equal value of goods of some kind or another. Those goods too would not be all matters of mere luxury and expense, to