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<h2> CHAPTER V. OF THE REAL AND NOMINAL PRICE OF COMMODITIES, OR OF THEIR PRICE IN LABOUR, AND THEIR PRICE IN MONEY. </h2>
<p>Every man is rich or poor according to the degree in which he can afford
to enjoy the necessaries, conveniencies, and amusements of human life. But
after the division of labour has once thoroughly taken place, it is but a
very small part of these with which a man's own labour can supply him. The
far greater part of them he must derive from the labour of other people,
and he must be rich or poor according to the quantity of that labour which
he can command, or which he can afford to purchase. The value of any
commodity, therefore, to the person who possesses it, and who means not to
use or consume it himself, but to exchange it for other commodities, is
equal to the quantity of labour which it enables him to purchase or
command. Labour therefore, is the real measure of the exchangeable value
of all commodities.</p>
<p>The real price of every thing, what every thing really costs to the man
who wants to acquire it, is the toil and trouble of acquiring it. What
every thing is really worth to the man who has acquired it and who wants
to dispose of it, or exchange it for something else, is the toil and
trouble which it can save to himself, and which it can impose upon other
people. What is bought with money, or with goods, is purchased by labour,
as much as what we acquire by the toil of our own body. That money, or
those goods, indeed, save us this toil. They contain the value of a
certain quantity of labour, which we exchange for what is supposed at the
time to contain the value of an equal quantity. Labour was the first
price, the original purchase money that was paid for all things. It was
not by gold or by silver, but by labour, that all the wealth of the world
was originally purchased; and its value, to those who possess it, and who
want to exchange it for some new productions, is precisely equal to the
quantity of labour which it can enable them to purchase or command.</p>
<p>Wealth, as Mr Hobbes says, is power. But the person who either acquires,
or succeeds to a great fortune, does not necessarily acquire or succeed to
any political power, either civil or military. His fortune may, perhaps,
afford him the means of acquiring both; but the mere possession of that
fortune does not necessarily convey to him either. The power which that
possession immediately and directly conveys to him, is the power of
purchasing a certain command over all the labour, or over all the produce
of labour which is then in the market. His fortune is greater or less,
precisely in proportion to the extent of this power, or to the quantity
either of other men's labour, or, what is the same thing, of the produce
of other men's labour, which it enables him to purchase or command. The
exchangeable value of every thing must always be precisely equal to the
extent of this power which it conveys to its owner.</p>
<p>But though labour be the real measure of the exchangeable value of all
commodities, it is not that by which their value is commonly estimated. It
is often difficult to ascertain the proportion between two different
quantities of labour. The time spent in two different sorts of work will
not always alone determine this proportion. The different degrees of
hardship endured, and of ingenuity exercised, must likewise be taken into
account. There may be more labour in an hour's hard work, than in two
hours easy business; or in an hour's application to a trade which it cost
ten years labour to learn, than in a month's industry, at an ordinary and
obvious employment. But it is not easy to find any accurate measure either
of hardship or ingenuity. In exchanging, indeed, the different productions
of different sorts of labour for one another, some allowance is commonly
made for both. It is adjusted, however, not by any accurate measure, but
by the higgling and bargaining of the market, according to that sort of
rough equality which, though not exact, is sufficient for carrying on the
business of common life.</p>
<p>Every commodity, besides, is more frequently exchanged for, and thereby
compared with, other commodities, than with labour. It is more natural,
therefore, to estimate its exchangeable value by the quantity of some
other commodity, than by that of the labour which it can produce. The
greater part of people, too, understand better what is meant by a quantity
of a particular commodity, than by a quantity of labour. The one is a
plain palpable object; the other an abstract notion, which though it can
be made sufficiently intelligible, is not altogether so natural and
obvious.</p>
<p>But when barter ceases, and money has become the common instrument of
commerce, every particular commodity is more frequently exchanged for
money than for any other commodity. The butcher seldom carries his beef or
his mutton to the baker or the brewer, in order to exchange them for bread
or for beer; but he carries them to the market, where he exchanges them
for money, and afterwards exchanges that money for bread and for beer. The
quantity of money which he gets for them regulates, too, the quantity of
bread and beer which he can afterwards purchase. It is more natural and
obvious to him, therefore, to estimate their value by the quantity of
money, the commodity for which he immediately exchanges them, than by that
of bread and beer, the commodities for which he can exchange them only by
the intervention of another commodity; and rather to say that his
butcher's meat is worth three-pence or fourpence a-pound, than that it is
worth three or four pounds of bread, or three or four quarts of small
beer. Hence it comes to pass, that the exchangeable value of every
commodity is more frequently estimated by the quantity of money, than by
the quantity either of labour or of any other commodity which can be had
in exchange for it.</p>
<p>Gold and silver, however, like every other commodity, vary in their value;
are sometimes cheaper and sometimes dearer, sometimes of easier and
sometimes of more difficult purchase. The quantity of labour which any
particular quantity of them can purchase or command, or the quantity of
other goods which it will exchange for, depends always upon the fertility
or barrenness of the mines which happen to be known about the time when
such exchanges are made. The discovery of the abundant mines of America,
reduced, in the sixteenth century, the value of gold and silver in Europe
to about a third of what it had been before. As it cost less labour to
bring those metals from the mine to the market, so, when they were brought
thither, they could purchase or command less labour; and this revolution
in their value, though perhaps the greatest, is by no means the only one
of which history gives some account. But as a measure of quantity, such as
the natural foot, fathom, or handful, which is continually varying in its
own quantity, can never be an accurate measure of the quantity of other
things; so a commodity which is itself continually varying in its own
value, can never be an accurate measure of the value of other commodities.
Equal quantities of labour, at all times and places, may be said to be of
equal value to the labourer. In his ordinary state of health, strength,
and spirits; in the ordinary degree of his skill and dexterity, he must
always lay down the same portion of his ease, his liberty, and his
happiness. The price which he pays must always be the same, whatever may
be the quantity of goods which he receives in return for it. Of these,
indeed, it may sometimes purchase a greater and sometimes a smaller
quantity; but it is their value which varies, not that of the labour which
purchases them. At all times and places, that is dear which it is
difficult to come at, or which it costs much labour to acquire; and that
cheap which is to be had easily, or with very little labour. Labour alone,
therefore, never varying in its own value, is alone the ultimate and real
standard by which the value of all commodities can at all times and places
be estimated and compared. It is their real price; money is their nominal
price only.</p>
<p>But though equal quantities of labour are always of equal value to the
labourer, yet to the person who employs him they appear sometimes to be of
greater, and sometimes of smaller value. He purchases them sometimes with
a greater, and sometimes with a smaller quantity of goods, and to him the
price of labour seems 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.</p>
<p>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 conveniencies 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.</p>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<p>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 price of silver.</p>
<p>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.</p>
<p>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 shew 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.</p>
<p>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 shew 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 shew 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 mean time, 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.</p>
<p>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.</p>
<p>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 selling, the more common and ordinary
transactions of human life.</p>
<p>At the same time and place, the real and the nominal price of all
commodities are exactly in proportion to one another. The more or less
money you get for any commodity, in the London market, for example, the
more or less labour it will at that time and place enable you to purchase
or command. At the same time and place, therefore, money is the exact
measure of the real exchangeable value of all commodities. It is so,
however, at the same time and place only.</p>
<p>Though at distant places there is no regular proportion between the real
and the money price of commodities, yet the merchant who carries goods
from the one to the other, has nothing to consider but the money price, or
the difference between the quantity of silver for which he buys them, and
that for which he is likely to sell them. Half an ounce of silver at
Canton in China may command a greater quantity both of labour and of the
necessaries and conveniencies of life, than an ounce at London. A
commodity, therefore, which sells for half an ounce of silver at Canton,
may there be really dearer, of more real importance to the man who
possesses it there, than a commodity which sells for an ounce at London is
to the man who possesses it at London. If a London merchant, however, can
buy at Canton, for half an ounce of silver, a commodity which he can
afterwards sell at London for an ounce, he gains a hundred per cent. by
the bargain, just as much as if an ounce of silver was at London exactly
of the same value as at Canton. It is of no importance to him that half an
ounce of silver at Canton would have given him the command of more labour,
and of a greater quantity of the necessaries and conveniencies of life
than an ounce can do at London. An ounce at London will always give him
the command of double the quantity of all these, which half an ounce could
have done there, and this is precisely what he wants.</p>
<p>As it is the nominal or money price of goods, therefore, which finally
determines the prudence or imprudence of all purchases and sales, and
thereby regulates almost the whole business of common life in which price
is concerned, we cannot wonder that it should have been so much more
attended to than the real price.</p>
<p>In such a work as this, however, it may sometimes be of use to compare the
different real values of a particular commodity at different times and
places, or the different degrees of power over the labour of other people
which it may, upon different occasions, have given to those who possessed
it. We must in this case compare, not so much the different quantities of
silver for which it was commonly sold, as the different quantities or
labour which those different quantities of silver could have purchased.
But the current prices of labour, at distant times and places, can scarce
ever be known with any degree of exactness. Those of corn, though they
have in few places been regularly recorded, are in general better known,
and have been more frequently taken notice of by historians and other
writers. We must generally, therefore, content ourselves with them, not as
being always exactly in the same proportion as the current prices of
labour, but as being the nearest approximation which can commonly be had
to that proportion. I shall hereafter have occasion to make several
comparisons of this kind.</p>
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