The gold value of a country’s inconvertible paper money may fall, either because the Government is spending more than it is raising by loans and taxes and is meeting the balance by issuing paper money, or because the country is under the obligation of paying increased sums to foreigners for the purchase of investments or in discharge of debts. Temporarily it may be affected by speculation, that is to say by _anticipation_, whether well or ill founded, that one or other of the above influences will operate shortly; but the influence of speculation is generally much exaggerated, because of the immense effect which it may exercise momentarily. Both influences can only operate through the balance of debts, due for immediate payment, between the country in question and the rest of the world: the liability to make payments to foreigners operating on this directly; and the inflation of the currency operating on it indirectly, either because the additional paper money stimulates imports and retards exports, by increasing local purchasing power at the existing level of values or because the expectation that it will so act causes anticipatory speculation. The expansion of the currency can have no effect whatever on the exchanges until it reacts on imports and exports, or encourages speculation; and as the latter cancels out, sooner or later, the effect of currency expansion on the exchanges can only last by reacting on imports and exports. These principles can be applied without difficulty to the exchange value of the mark since 1920. At first the various influences were not all operating in the same direction. Currency inflation tended to depreciate the mark; so did foreign investment by Germans (the “flight from the mark”); but investment by foreigners in German Bonds and German currency (an exact line between which and short–period speculation it is not easy to draw) operated sharply in the other direction. After the mark had fallen to such a level that more than 25 marks could be obtained for a dollar, numerous persons all over the world formed the opinion that there would be a reaction some day to the pre–war value, and that therefore a purchase of marks or mark Bonds would be a good investment. This investment proceeded on so vast a scale that it placed foreign currency at the disposal of Germany up to an aggregate value which has been estimated at from $800,000,000 to $1,000,000,000. These resources enabled Germany, partially at least, to replenish her food supplies and to restock her industries with raw materials, requirements involving an excess of imports over exports which could not otherwise have been paid for. In addition it even enabled individual Germans to remove a part of their wealth from Germany for investment in other countries.