wealbk01-第9节
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to vary like that of all other things。 It appears to him dear in
the one case; and cheap in the other。 In reality; however; it is
the goods which are cheap in the one case; and dear in the other。
In this popular sense; therefore; labour; like commodities;
may be said to have a real and a nominal price。 Its real price
may be said to consist in the quantity of the necessaries and
conveniences of life which are given for it; its nominal price;
in the quantity of money。 The labourer is rich or poor; is well
or ill rewarded; in proportion to the real; not to the nominal
price of his labour。
The distinction between the real and the nominal price of
commodities and labour is not a matter of mere speculation; but
may sometimes be of considerable use in practice。 The same real
price is always of the same value; but on account of the
variations in the value of gold and silver; the same nominal
price is sometimes of very different values。 When a landed
estate; therefore; is sold with a reservation of a perpetual
rent; if it is intended that this rent should always be of the
same value; it is of importance to the family in whose favour it
is reserved that it should not consist in a particular sum of
money。 Its value would in this case be liable to variations of
two different kinds; first; to those which arise from the
different quantities of gold and silver which are contained at
different times in coin of the same denomination; and; secondly;
to those which arise from the different values of equal
quantities of gold and silver at different times。
Princes and sovereign states have frequently fancied that
they had a temporary interest to diminish the quantity of pure
metal contained in their coins; but they seldom have fancied that
they had any to augment it。 The quantity of metal contained in
the coins; I believe of all nations; has; accordingly; been
almost continually diminishing; and hardly ever augmenting。 Such
variations; therefore; tend almost always to diminish the value
of a money rent。
The discovery of the mines of America diminished the value
of gold and silver in Europe。 This diminution; it is commonly
supposed; though I apprehend without any certain proof; is still
going on gradually; and is likely to continue to do so for a long
time。 Upon this supposition; therefore; such variations are more
likely to diminish than to augment the value of a money rent;
even though it should be stipulated to be paid; not in such a
quantity of coined money of such a denomination (in so many
pounds sterling; for example); but in so many ounces either of
pure silver; or of silver of a certain standard。
The rents which have been reserved in corn have preserved
their value much better than those which have been reserved in
money; even where the denomination of the coin has not been
altered。 By the 18th of Elizabeth it was enacted that a third of
the rent of all college leases should be reserved in corn; to be
paid; either in kind; or according to the current prices at the
nearest public market。 The money arising from this corn rent;
though originally but a third of the whole; is in the present
times; according to Dr。 Blackstone; commonly near double of what
arises from the other two…thirds。 The old money rents of colleges
must; according to this account; have sunk almost to a fourth
part of their ancient value; or are worth little more than a
fourth part of the corn which they were formerly worth。 But since
the reign of Philip and Mary the denomination of the English coin
has undergone little or no alteration; and the same number of
pounds; shillings and pence have contained very nearly the same
quantity of pure silver。 This degradation; therefore; in the
value of the money rents of colleges; has arisen altogether from
the degradation in the value of silver。
When the degradation in the value of silver is combined with
the diminution of the quantity of it contained in the coin of the
same denomination; the loss is frequently still greater。 In
Scotland; where the denomination of the coin has undergone much
greater alterations than it ever did in England; and in France;
where it has undergone still greater than it ever did in
Scotland; some ancient rents; originally of considerable value;
have in this manner been reduced almost to nothing。
Equal quantities of labour will at distant times be
purchased more nearly with equal quantities of corn; the
subsistence of the labourer; than with equal quantities of gold
and silver; or perhaps of any other commodity。 Equal quantities
of corn; therefore; will; at distant times; be more nearly of the
same real value; or enable the possessor to purchase or command
more nearly the same quantity of the labour of other people。 They
will do this; I say; more nearly than equal quantities of almost
any other commodity; for even equal quantities of corn will not
do it exactly。 The subsistence of the labourer; or the real price
of labour; as I shall endeavour to show hereafter; is very
different upon different occasions; more liberal in a society
advancing to opulence than in one that is standing still; and in
one that is standing still than in one that is going backwards。
Every other commodity; however; will at any particular time
purchase a greater or smaller quantity of labour in proportion to
the quantity of subsistence which it can purchase at that time。 A
rent therefore reserved in corn is liable only to the variations
in the quantity of labour which a certain quantity of corn can
purchase。 But a rent reserved in any other commodity is liable
not only to the variations in the quantity of labour which any
particular quantity of corn can purchase; but to the variations
in the quantity of corn which can be purchased by any particular
quantity of that commodity。
Though the real value of a corn rent; it is to be observed;
however; varies much less from century to century than that of a
money rent; it varies much more from year to year。 The money
price of labour; as I shall endeavour to show hereafter; does not
fluctuate from year to year with the money price of corn; but
seems to be everywhere accommodated; not to the temporary or
occasional; but to the average or ordinary price of that
necessary of life。 The average or ordinary price of corn again is
regulated; as I shall likewise endeavour to show hereafter; by
the value of silver; by the richness or barrenness of the mines
which supply the market with that metal; or by the quantity of
labour which must be employed; and consequently of corn which
must be consumed; in order to bring any particular quantity of
silver from the mine to the market。 But the value of silver;
though it sometimes varies greatly from century to century;
seldom varies much from year to year; but frequently continues
the same; or very nearly the same; for half a century or a
century together。 The ordinary or average money price of corn;
therefore; may; during so long a period; continue the same or
very nearly the same too; and along with it the money price of
labour; provided; at least; the society continues; in other
respects; in the same or nearly in the same condition。 In the
meantime the temporary and occasional price of corn may
frequently be double; one year; of what it had been the year
before; or fluctuate; for example; from five and twenty to fifty
shillings the quarter。 But when corn is at the latter price; not
only the nominal; but the real value of a corn rent will be
double of what it is when at the former; or will command double
the quantity either of labour or of the greater part of other
commodities; the money price of labour; and along with it that of
most other things; continuing the same during all these
fluctuations。
Labour; therefore; it appears evidently; is the only
universal; as well as the only accurate measure of value; or the
only standard by which we can compare the values of different
commodities at all times; and at all places。 We cannot estimate;
it is allowed; the real value of different commodities from
century to century by the quantities of silver which were given
for them。 We cannot estimate it from year to year by the
quantities of corn。 By the quantities of labour we can; with the
greatest accuracy; estimate it both from century to century and
from year to year。 From century to century; corn is a better
measure than silver; because; from century to century; equal
quantities of corn will command the same quantity of labour more
nearly than equal quantities of silver。 From year to year; on the
contrary; silver is a better measure than corn; because equal
quantities of it will more nearly command the same quantity of
labour。
But though in establishing perpetual rents; or even in
letting very long leases; it may be of use to distinguish between
real and nominal price; it is of none in buying and sel