It is the peculiar situation of Spain and Portugal as proprietors of the mines, to be the distributors of gold and silver to all the other countries of Europe. Those metals ought naturally, therefore, to be somewhat cheaper in Spain and Portugal than in any other part of Europe. The difference, however, should be no more than the amount of the freight and insurance; and, on account of the great value and small bulk of those metals, their freight is no great matter, and their insurance is the same as that of any other goods of equal value. Spain and Portugal, therefore, could suffer very little from their peculiar situation, if they did not aggravate its disadvantages by their political institutions.
Spain by taxing, and Portugal by prohibiting the exportation of gold and silver, load that exportation with the expense of smuggling, and raise the value of those metals in other countries so much more above what it is in their own, by the whole amount of this expense. When you dam up a stream of water, as soon as the dam is full, as much water must run over the dam-head as if there was no dam at all. The prohibition of exportation cannot detain a greater quantity of gold and silver in Spain and Portugal than what they can afford to employ, than what the annual produce of their land and labour will allow them to employ, in coin, plate, gilding, and other ornaments of gold and silver. When they have got this quantity the dam is full, and the whole stream which flows in afterwards must run over. The annual exportation of gold and silver from Spain and Portugal accordingly is, by all accounts, notwithstanding these restraints, very near equal to the whole annual importation. As the water, however, must always be deeper behind the dam-head than before it, so the quantity of gold and silver which these restraints detain in Spain and Portugal must, in proportion to the annual produce of their land and labour, be greater than what is to be found in other countries. The