What, then, is it that produces a general decline of prices in any
country? It is produced by a shrinkage in the volume of money relatively
to population and business, which has never yet failed to cause an
increase in the value of the money unit, and a consequent decrease in
the price of the commodities for which such unit is exchanged. If the
volume of money in circulation be made to bear a direct and steady ratio
to population and business, prices will be maintained at a steady level,
and, what is of supreme importance, money will be kept of unchanging
value. With an advancing civilization, in which a large volume of
business is conducted on a basis of credit extending over long periods,
it is of the uttermost importance that money, which is the measure of
all equities, should be kept unchanging in value through time.