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Subject Area: Economics
Topic: Money and Banking

A Standard of Value. - William Stanley Jevons, Money and the Mechanism of Exchange [1875]

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Money and the Mechanism of Exchange (New York: D. Appleton and Co. 1876).

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A Standard of Value.

A third function of money soon develops itself. Commerce cannot advance far before people begin to borrow and lend, and debts of various origin are contracted. It is in some cases usual, indeed, to restore the very same article which was borrowed, and in almost every case it would be possible to pay back in the same kind of commodity. If corn be borrowed, corn might be paid back, with interest in corn; but the lender will often not wish to have things returned to him at an uncertain time, when he does not much need them, or when their value is unusually low. A borrower, too, may need several different kinds of articles, which he is not likely to obtain from one person; hence arises the convenience of borrowing and lending in one generally recognized commodity, of which the value varies little. Every person making a contract by which he will receive something at a future day, will prefer to secure the receipt of a commodity likely to be as valuable then as now. This commodity will usually be the current money, and it will thus come to perform the function of a standard of value. We must not suppose that the substance serving as a standard of value is really invariable in value, but merely that it is chosen as that measure by which the value of future payments is to be regulated. Bearing in mind that value is only the ratio of quantities exchanged, it is certain that no substance permanently bears exactly the same value relatively to another commodity; but it will, of course, be desirable to select as the standard of value that which appears likely to continue to exchange for many other commodities in nearly unchanged ratios.