STABILITY OF THE EXCHANGE STANDARD 559
Which kind of depreciation is the greater evil we will discuss in the next chapter. Dealing for the present with this experience of the Bank of England, we have the fact that there can be a general depreciation without a specific depreciation. In view of this, the upholders of the exchange standard have no reason to be proud of the fact that the rupee has not shown signs of specific depreciation over periods of long duration. That a bank note absolutely inconvertible and unregulated as to issue should have maintained its par for very nearly thirteen years may speak far more in favour of the suspension system than the experience of the rupee can in favour of the exchange standard. There is a greater wonder in the former than there is in the latter, for the value of the rupee is sustained, apart from the fact that gold in terms of which it was measured was itself undergoing a depreciation, as is evident from the foregoing figures of general prices in England, and by a hope in some kind of convertibility, however slight or however remote but which had no place in the case of the Bank of England notes. Yet no one is known to have admired or justified the currency system of the suspension period, although it had not given rise to a specific depreciation for a long time.
This mode of measuring depreciation in terms of gold would be, relatively speaking, a harmless idea if it was not made the basis of another assumption on which the exchange standard is made to rest, that the general and specific depreciations of a currency are unrelated phenomena. As against this it is necessary to urge that the chief lesson to be drawn from this experience of the Bank of England for the benefit of the upholders of the exchange standard consists in demonstrating that although their movements are not perfectly harmonious, yet they are essentially interrelated. That lesson may be summed up in the statement that when the general depreciation of currency has taken place the occurrence of a specific depreciation, other things being equal, is only a matter of time, if the general depreciation proceeds beyond a certain limit. What will be the interval before specific depreciation will supervene upon general depreciation depends upon a variety of circumstances. Like the surface of a rising lake, general depreciation touches different commodities at different times according as they are located in the general scheme of things as determined by the relative strength of demand for them. If there is no demand for gold for currency purposes or for industrial purposes, the