When the balance of trade is favourable for France, coin is worth 8 per cent. above bullion.
The proof is plain. Were it not 8 per cent. above bullion, no man would ever carry bullion to the mint; because the mint price is 8 per cent. below that of the coin.
When the balance of trade is against France, coin must fall nearly to the price of bullion.
Supposing then that the balance of the trade of France (at a medium of thirty four years) is found to have been at par, will it not follow, that at a medium also of these thirty four years, French coin must have been at 4 per cent. (the half of the coinage) above bullion? Consequently England having taken merchandize from France, and France having merchandize from England, for the same weight and fineness in their respective coins, must not England have been obliged to send to France 4 per cent. more bullion in order to pay the coinage? This reasoning appears conclusive to me, who am no merchant, and who do by no means pretend to a perfect understanding of those affairs; but I think this circumstance is at least of sufficient importance to make the matter be inquired into. For this purpose, I shall suggest a method of making the discovery.
Easy to be verified at all times by the price of bullion and course of exchange in the Paris market.
If it shall be found, that English draughts on Paris, or French remittances to England, shall at any time occasion bullion to rise in the market of Paris above the mint price, will it not be allowed that such a circumstance demonstrates that the balance of trade is then in favour of England? If at that same time it shall be found, that exchange (when reckoned upon the gold as Cantillon has done) is against England, will it not be a demonstration of the truth of what I have here suggested as a question worthy of examination?
When bullion is exported to England, exchange is against France.
For if the balance of trade be against France, so as to make her buy bullion to send to England, this is a proof that she owes England a balance; and if at the same time the English are paying above the intrinsic value of the metals (in their respective coins) in what they owe to France, that additional value cannot be paid by England as the price of exchange, or to pay for the transportation of their bullion, but to pay the French creditors the additional value of their coin above the price of bullion.
Course of exchange no rule of judging of the balance of trade, but only of the value of coin.
May we not also conclude, that in a kingdom such as England, where coinage is free, the course of exchange is no certain rule for judging of the balance of trade with France; but only of the value of French coin above French bullion. All authors who have written upon exchange, represent the advanced price given upon bills above the intrinsic value of the coins, to be the price of carriage and insurance, &c. in which case exchange, no doubt, may mark the balance of trade; but if an advanced price must be given in order to put bullion into coin, or in other words, if the metals in the coin are worth 8 per cent. more than any bullion of the same fineness, is it not evident that a nation may be drawing a great balance of bullion from another, although she be, at the same time, paying 8 per cent. above the rate of bullion in the sums she repays to the nation which is her debtor upon the whole; that is to say, although she be paying above the real par of exchange, as it is commonly calculated.