IV. BY ARTHUR I. FONDA.
The value of any commodity is measured by what it will exchange for. It is in fact its purchasing power, or power in exchange. This in substance is the concrete definition of value given by all economists, and they all unite in stating that value is determined by the supply of a commodity relative to the demand for it; all other factors affecting value being secondary and acting through their effect on either supply or demand.
Since both the supply of and the demand for every freely produced commodity is variable, and since a true standard of value, like a true standard of weight or length, must be invariable as regards that which it measures, it necessarily follows that no single freely produced commodity can be a true standard of value. But while it is true that every single commodity must vary in value, it is also true that all commodities taken together cannot do so. This principle is also accepted as correct by all economists.
It is evident then that a true standard of value can only be found in a composite unit containing a definite quantity of every commodity, or practically speaking, a definite quantity of each of a large number of the most important commodities. This is what is known as the “multiple standard,” or the “commodity standard,” and has long been in use by economists in the form of tables of index numbers to show fluctuations in general prices, or what is the same thing, changes in money values.
The only function of money is to facilitate the exchange of goods. In doing this it acts directly as a circulating medium, and the demand for it for this purpose, relative to the supply, determines its value; for money, whether of coin or paper or both combined in one circulation to meet one need, is subject to the same law of supply and demand which governs all commodities, and which indeed is as universal in the economic world as the law of gravitation is in the physical world.
Incidentally the value of money fills the important function of serving as a measure of the values of goods transferred without the direct use of money, both immediate and deferred. This, however, has no effect on the demand for money or on its value.
The people are accustomed to regard money as of constant value, and an honest money must necessarily conform to this belief. If money varies in value, the people are deluded, and many are wronged if they are unaware of the fluctuation. If they become aware of it,—as they generally do by a bitter experience,—they are confronted with an uncertainty that is most detrimental to any business or enterprise. Imagine what our business would be with our measures of weight, length, and capacity all variable! Yet such a condition would be less disastrous than a fluctuating money value when it became fully known that it was so.
The demand for money varies from many causes, chief among which are changes in the quantity of goods exchanged, the extent to which other credit instruments take the place of money in such exchanges, and the activity of money, or the extent to which it is hoarded, all of which are entirely beyond control. The supply of money, however, can be controlled, and to maintain money at a constant value the supply must be constantly adjusted to the ever-varying demand, so that its general purchasing power may remain the same. The test of a constant money must be a constant general level of prices; and this must be judged by the prices in the open market of those principal commodities which would be selected to constitute the standard of value, the quantity of each being proportioned to its importance in trade.
The only function of gold and silver in a monetary system is to limit the volume of the money, either by their scarcity when freely coined, or by the laws limiting their coinage. And as this limitation of the supply bears no definite relation to the demand for money, the value of the money necessarily fluctuates. Our industrial system is constantly growing more sensitive to even slight changes in money value, owing to the greater diversification of industries and the greater division of labor, and the need for preventing such changes is constantly growing more imperative.