The Theory of Money and Credit - Ludwig von Mises [34]
State declarations of legal tender affect only those monetary obligations that have already been contracted. But commerce is free to choose between retaining its old medium of exchange or creating a new one for itself, and when it adopts a new medium, so far as the legal power of the contracting parties reaches, it will attempt to make it into a standard of deferred payments also, in order to deprive of its validity, at least for the future, the standard to which the state has ascribed complete powers of debt settlement. When, during the last decade of the nineteenth century, the bimetallist party in Germany gained so much power that the possibility of experiment with its inflationist proposals had to be reckoned with, gold clauses began to make their appearance in long-term contracts. The recent period of currency depreciation has had a similar effect. If the state does not wish to render all credit transactions impossible, it must recognize such devices as these and instruct the courts to acknowledge them. And, similarly, when the state itself enters into ordinary business dealings, when it buys or sells, guarantees loans or borrows, makes payments or receives them, it must recognize the common business medium of exchange as money. The legal standard, the particular group of things that are endued with the property of unlimited legal tender, is in fact valid only for the settlement of existing debts, unless business usage itself adopts it as a general medium of exchange.
3 The Influence of the State on the Monetary System
State activity in the monetary sphere was originally restricted to the manufacture of coins. To supply ingots of the greatest possible degree of similarity in appearance, weight, and fineness, and provide them with a stamp that was not too easy to imitate and that could be recognized by everybody as the sign of the state coinage, was and still is the premier task of state monetary activity. Beginning with this, the influence of the state in the monetary sphere has gradually extended.
Progress in monetary technique has been slow. At first, the impression on a coin was merely a proof of the genuineness of its material, including its degree of fineness, while the weight had to be separately checked at each payment. (In the present state of knowledge this cannot be stated dogmatically; and in any case the development is not likely to have followed the same lines everywhere.) Later, different kinds of coins were distinguished, all the separate coins of any particular kind being regarded as interchangeable. The next step after the innovation of classified money. was the development of the parallel standard. This consisted in the juxtaposition of two monetary systems, one based on gold commodity money, and one on silver. The coins belonging to each separate system constituted a self-contained group. Their weights bore a definite relation to each other, and the state gave them a legal relation also, in the same proportion, by sanctioning the commercial practice which had gradually been established of regarding different coins of the same metal as interchangeable. This stage was reached without further state influence. All that the state had done till then in the monetary sphere was to provide the coins for commercial use. As controller of the mint, it supplied in handy form pieces of metal of specific weight and fineness, stamped in such a way that everybody could recognize without difficulty what their metallic content was and whence they originated. As legislator, the state attributed legal tender to these coins—the significance of this has just been expounded—and as judge it applied this legal provision. But the matter did not end at this stage. For about the last two hundred years the influence of the state on the monetary system has been greater than this. One thing, however, must be made clear; even now the state has not the power of directly making anything into money, that is to say into a common medium of exchange.