When nations give coinage gratis, or when they allow the coin of other nations the privilege of passing current under denominations exactly proportioned to its intrinsic value, then coin never can be worth more than any other bullion of the same standard; consequently, will be exported or smuggled out upon every occasion. If, therefore, a nation does really desire to avoid an expence to the mint, they must make it the interest of merchants to export every other thing preferably to their own coin. This is done by imposing a duty upon the coinage; and this will either prevent its going out unnecessarily, or if it be necessary to export it, the coin will return in the payments made to the nation, in consequence of its advanced value above any other bullion which can be sent. The forbidding the exportation of coin, implies a restriction upon the exportation of bullion; because, unless the bullion be examined at the custom house, and the stamps upon it looked at, it may happen to be nothing but the nation’s coin melted down, with an intention to avoid the law. For this reason, whoever brings bullion to be stamped, whether it be for exportation or not, must declare that it is not made of the nation’s coin. How slender a check are all such declarations! The only one effectual is private interest; and as no man will take his wig to stuff his chair, when he can get cheaper materials equally good, so no man will melt down coin which bears an advanced value, when he can procure any other bullion. On the whole, we may determine, that a flourishing commercial state, which has, on the average of their trade, a balance coming in from other countries, should lay it down as a general rule, to facilitate the exportation of their coin, as well as bullion: and if a very particular circumstance should occur, which may continue for a short time, they may then put a temporary stop to it, and facilitate the payment of the balance in the way of credit. I have enlarged so much upon the methods of removing the first difficulty of paying a balance, with the coin or bullion found in a nation, that what remains to be said upon the second difficulty, to wit, the procuring them from other nations, need not be long. Were the mint weights of all countries sufficiently determinate; were the regulations concerning the standard of bullion exactly complied with; and were the current market prices of that important commodity, considered as a valuable piece of intelligence every where, the bullion trade would be much easier than it is. We have said, that when the reciprocal debts of two nations are equal, there is no occasion for bullion to discharge them. But trading nations are many; and from this it may happen, that one who, upon the whole, is creditor to the world, may be debtor to a place which is also creditor to the world; and in this case bullion is necessary to pay the debt.