The values of commodities may be compared to the surface of the ocean, which, vexed by winds and tides, is never at rest, every point continually rising or falling as compared with others. As some points rise others fall, yet there is a mean level which does not vary, and by comparison with which the variations of level of any particular point may be determined. So with values, there is a mean or average which is constant, and by referring individual values to that we can determine their fluctuations.
These ideas will become clearer as we proceed to apply them concretely to the special case of money.
Although there can be but one real standard of value, invariable at all times and places, yet, as before stated, any commodity may serve as a measure of value, and the great convenience subserved, by all the people of any locality or country using the same commodity instead of a number of different ones for this purpose, early led to the adoption of some one commodity in each locality as a "money" to measure values and facilitate exchanges.
[CHAPTER II.]
MONEY.
Definition of Money.
Money has been variously defined by different writers. Perhaps the definition given by Prof. F. A. Walker, though lengthy, is the most comprehensive. He says: "Money is that which passes freely from hand to hand throughout the community in final discharge of debts and full payment for commodities, being accepted equally without reference to the character or credit of the person who offers it, and without the intention of the person who receives it to consume it, or enjoy it, or to apply it to any other use than in turn to tender it to others in discharge of debts or full payment for commodities."
This definition has been indorsed by several other writers; by some, however, the term money is restricted to coin, paper money being called currency. The distinction is perfectly proper, though not generally concurred in. People commonly use the terms money and currency indiscriminately for both coin and paper money, since they perform identically the same work where both are used together, and the paper is convertible into coin at any time. Where the paper is used alone—"inconvertible paper"—coin is really not money; it ceases to circulate as money; it is hoarded as treasure, or bought and sold as a commodity, but fails to have that general use in current transactions in that country which alone entitles any commodity to be called money.
The distinction sought to be made between paper money and coin arises largely, it is thought, from the idea that coin has a value in itself which paper money has not. This idea is erroneous. Value, as we have seen, is a ratio or relation, and though the value of anything is based on a desire for it, that desire may arise either from the satisfaction which the use or consumption of it will bring, or from the belief that it can be exchanged for some other thing that will give satisfaction in use or consumption. The value of money is due to the latter of these two causes. No one wants money except for the purpose of exchanging it for other commodities; under modern conditions it is necessary for this purpose,—it is the indispensable requisite to the satisfaction of certain human wants. Money, therefore, possesses an indirect if not a direct subjective value which forms the basis of its exchange value. Paper money possesses the power of satisfying this need for money to the same extent that coin does, under like conditions, and it has, therefore, both subjective value and exchange value, and the latter is governed by the same law of supply and demand that operates in all cases.