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§ 1. WE have now completed, as far as is compatible with our purposes and limits, the exposition of the machinery through which the produce of a country is apportioned among the different classes of its inhabitants; which is no other than the machinery of Exchange, and has for the exponents of its operation, the laws of Value and of Price. We shall now avail ourselves of the light thus acquired, to cast a retrospective glance at the subject of Distribution. The division of the produce among the three classes, Labourers, Capitalists, and Landlords, when considered without any reference to Exchange, appeared to depend on certain general laws. It is fit that we should now consider whether these same laws still operate, when the distribution takes place through the complex mechanism of exchange and money; or whether the properties of the mechanism interfere with and modify the presiding principles.
The primary division of the produce of human exertion and frugality is, as we have seen, into three shares, wages, profits, and rent; and these shares are portioned out to the persons entitled to them, in the form of money, and by a process of exchange; or rather, the capitalist, with whom in the usual arrangements of society the produce remains, pays in money, to the other two sharers, the market value of their labour and land. If we examine, on what the pecuniary value of labour, and the pecuniary value of the use of land, depend, we shall find that it is on the very same causes by which we found that wages and rent would be regulated if there were no money and no exchange of commodities. It is evident, in the first place, that the law of Wages is not affected by the existence or non-existence of Exchange or Money. Wages depend on the ratio between population and capital; and would do so if all the capital in the world were the property of one association, or if the capitalists among whom it is shared maintained each an establishment for the production of every article consumed in the community, exchange of commodities having no existence. As the ratio between capital and population, everywhere but in new colonies, depends on the strength of the checks by which the too rapid increase of population is restrained, it may be said, popularly speaking, that wages depend on the checks to population; that when the check is not death, by starvation or disease, wages depend on the prudence of the labouring people; and that wages in any country are habitually at the lowest rate, to which in that country the labourer will suffer them to be depressed rather than put a restraint upon multiplication. What is here meant, however, by wages, is the labourer's real scale of comfort; the quantity he obtains of the things which nature or habit has made necessary or agreeable to him: wages in the sense in which they are of importance to the receiver. In the sense in which they are of importance to the payer, they do not depend exclusively on such simple principles. Wages in the first sense, the wages on which the labourer's comfort depends, we will call real wages, or wages in kind. Wages in the second sense, we may be permitted to call, for the present, money wages; assuming, as it is allowable to do, that money remains for the time an invariable standard, no alteration taking place in the conditions under which the circulating medium itself is produced or obtained. If money itself undergoes no variation in cost, the money price of labour is an exact measure of the Cost of Labour, and may be made use of as a convenient symbol to express it. The money wages of labour are a compound result of two elements: first, real wages, or wages in kind, or in other words, the quantity which the labourer obtains of the ordinary articles of consumption; and secondly, the money prices of those articles. In all old countries—all countries in which the increase of population is in any degree checked by the difficulty of obtaining subsistence—the habitual money price of labour is that which will just enable the labourers, one with another, to purchase the commodities without which they either cannot or will not keep up the population at its customary rate of increase. Their standard of comfort being given, (and by the standard of comfort in a labouring class, is meant that, rather than forego which, they will abstain from multiplication,) money wages depend on the money price, and therefore on the cost of production, of the various articles which the labourers habitually consume: because if their wages cannot procure them a given quantity of these, their increase will slacken, and their wages rise. Of these articles, food and other agricultural produce are so much the principal, as to leave little influence to anything else. It is at this point that we are enabled to invoke the aid of the principles which have been laid down in this Third Part. The cost of production of food and agricultural produce has been analyzed in a preceding chapter. It depends on the productiveness of the least fertile land, or of the least productively employed portion of capital, which the necessities of society have as yet put in requisition for agricultural purposes. The cost of production of the food grown in these least advantageous circumstances, determines, as we have seen, the exchange value and money price of the whole. In any given state, therefore, of the labourers' habits, their money wages depend on the productiveness of the least fertile land, or least productive agricultural capital: on the point which cultivation has reached in its downward progress—in its encroachments on the barren lands, and its gradually increased strain upon the powers of the more fertile. Now, the force which urges cultivation in this downward course, is the increase of people; while the counter-force which checks the descent, is the improvement of agricultural science and practice, enabling the same soil to yield to the same labour more ample returns. The costliness of the most costly part of the produce of cultivation, is an exact expression of the state, at any given moment, of the race which population and agricultural skill are always running against each other.
§ 2. It is well said by Dr. Chalmers, that many of the most important lessons in political economy are to be learnt at the extreme margin of cultivation, the last point which the culture of the soil has reached in its contest with the spontaneous agencies of nature. The degree of productiveness of this extreme margin, is an index to the existing state of the distribution of the produce among the three classes, of labourers, capitalists, and landlords.
When the demand of an increasing population for more food cannot be satisfied without extending cultivation to less fertile land, or incurring additional outlay, with a less proportional return, on land already in cultivation, it is a necessary condition of this increase of agricultural produce, that the value and price of that produce must first rise. But as soon as the price has risen sufficiently to give to the additional outlay of capital the ordinary profit, the rise will not go on still further for the purpose of enabling the new land, or the new expenditure on old land, to yield rent as well as profit. The land or capital last put in requisition, and occupying what Dr. Chalmers calls the margin of cultivation, will yield, and continue to yield, no rent. But if this yields no rent, the rent afforded by all other land or agricultural capital will be exactly so much as it produces more than this. The price of food will always on the average be such, that
the worst land, and the least productive instalment of the capital employed on the better lands, shall just replace the expenses with the ordinary profit. If the least favoured land and capital just do thus much, all other land and capital will yield an extra profit, equal to the proceeds of the extra produce due to their superior productiveness; and this extra profit becomes, by competition, the prize of the landlords. Ly Exchange, and money, therefore, make no difference in the law of rent: it is the same as we originally found it. Rent is the extra return made to agricultural capital when employed with peculiar advantages; the exact equivalent of what those advantages enable the producers to economize in the cost of production: the value and price of the produce being regulated by the cost of production to those producers who have no advantages; by the return to that portion of agricultural capital, the circumstances of which are the least favourable.
§ 3. Wages and rent being thus regulated by the same principles when paid in money, as they would be if apportioned in kind, it follows that Profits are so likewise. For the surplus, after replacing wages and paying rent, constitutes Profits. We found in the last chapter of the Second Book, that the advances of the capitalist, when analyzed to their ultimate elements, consist either in the purchase or maintenance of labour, or in the profits of former capitalists; and that therefore profits in the last resort, depend upon the Cost of Labour, falling as that rises, and rising as it falls. Let us endeavour to trace more minutely the operation of this law. There are two modes in which the Cost of Labour, which is correctly represented (money being supposed invariable) by the money wages of the labourer, may be increased. The labourer may obtain greater comforts; wages in kind— real wages—may rise. Or the progress of population may force down cultivation to inferior soils, and more costly