An Inquiry into the Nature and Causes of the Wealth of Nations

by Adam Smith

Secondly, of the stock of provisions which are in the possession of the butcher, the grazier, the farmer, the corn-merchant, the brewer, etc. and from the sale of which they expect to derive a profit.

Thirdly, of the materials, whether altogether rude, or more or less manufactured, of clothes, furniture, and building which are not yet made up into any of those three shapes, but which remain in the hands of the growers, the manufacturers, the mercers, and drapers, the timber-merchants, the carpenters and joiners, the brick-makers, etc.

Fourthly, and lastly, of the work which is made up and completed, but which is still in the hands of the merchant and manufacturer, and not yet disposed of or distributed to the proper consumers; such as the finished work which we frequently find ready made in the shops of the smith, the cabinet-maker, the goldsmith, the jeweller, the china-merchant, etc. The circulating capital consists, in this manner, of the provisions, materials, and finished work of all kinds that are in the hands of their respective dealers, and of the money that is necessary for circulating and distributing them to those who are finally to use or to consume them.

Of these four parts, three—provisions, materials, and finished work, are either annually or in a longer or shorter period, regularly withdrawn from it, and placed either in the fixed capital, or in the stock reserved for immediate consumption.

Every fixed capital is both originally derived from, and requires to be continually supported by, a circulating capital. All useful machines and instruments of trade are originally derived from a circulating capital, which furnishes the materials of which they are made, and the maintenance of the workmen who make them. They require, too, a capital of the same kind to keep them in constant repair.

No fixed capital can yield any revenue but by means of a circulating capital. The most useful machines and instruments of trade will produce nothing, without the circulating capital, which affords the materials they are employed upon, and the maintenance of the workmen who employ them. Land, however improved, will yield no revenue without a circulating capital, which maintains the labourers who cultivate and collect its produce.

To maintain and augment the stock which may be reserved for immediate consumption, is the sole end and purpose both of the fixed and circulating capitals. It is this stock which feeds, clothes, and lodges the people. Their riches or poverty depend upon the abundant or sparing supplies which those two capitals can afford to the stock reserved for immediate consumption.

So great a part of the circulating capital being continually withdrawn from it, in order to be placed in the other two branches of the general stock of the society, it must in its turn require continual supplies without which it would soon cease to exist. These supplies are principally drawn from three sources; the produce of land, of mines, and of fisheries. These afford continual supplies of provisions and materials, of which part is afterwards wrought up into finished work and by which are replaced the provisions, materials, and finished work, continually withdrawn from the circulating capital. From mines, too, is drawn what is necessary for maintaining and augmenting that part of it which consists in money. For though, in the ordinary course of business, this part is not, like the other three, necessarily withdrawn from it, in order to be placed in the other two branches of the general stock of the society, it must, however, like all other things, be wasted and worn out at last, and sometimes, too, be either lost or sent abroad, and must, therefore, require continual, though no doubt much smaller supplies.

Land, mines, and fisheries, require all both a fixed and circulating capital to cultivate them; and their produce replaces, with a profit not only those capitals, but all the others in the society. Thus the farmer annually replaces to the manufacturer the provisions which he had consumed, and the materials which he had wrought up the year before; and the manufacturer replaces to the farmer the finished work which he had wasted and worn out in the same time. This is the real exchange that is annually made between those two orders of people, though it seldom happens that the rude produce of the one, and the manufactured produce of the other, are directly bartered for one another; because it seldom happens that the farmer sells his corn and his cattle, his flax and his wool, to the very same person of whom he chuses to purchase the clothes, furniture, and instruments of trade, which he wants. He sells, therefore, his rude produce for money, with which he can purchase, wherever it is to be had, the manufactured produce he has occasion for. Land even replaces, in part at least, the capitals with which fisheries and mines are cultivated. It is the produce of land which draws the fish from the waters; and it is the produce of the surface of the earth which extracts the minerals from its bowels.

The produce of land, mines, and fisheries, when their natural fertility is equal, is in proportion to the extent and proper application of the capitals employed about them. When the capitals are equal, and equally well applied, it is in proportion to their natural fertility.