Front Page Titles (by Subject) CHAPTER XXIV.: DOCTRINE OF ADAM SMITH CONCERNING THE RENT OF LAND. - The Works of David Ricardo (McCulloch ed.)
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CHAPTER XXIV.: DOCTRINE OF ADAM SMITH CONCERNING THE RENT OF LAND. - David Ricardo, The Works of David Ricardo (McCulloch ed.) 
The Works of David Ricardo. With a Notice of the Life and Writings of the Author, by J.R. McCulloch (London: John Murray, 1888).
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DOCTRINE OF ADAM SMITH CONCERNING THE RENT OF LAND.
“Such parts only of the produce of land,” says Adam Smith, “can commonly be brought to market, of which the ordinary price is sufficient to replace the stock which must be employed in bringing them thither, together with its ordinary profits. If the ordinary price is more than this, the surplus part of it will naturally go to the rent of land. If it is not more, though the commodity can be brought to market, it can afford no rent to the landlord. Whether the price is, or is not more, depends upon the demand.”
This passage would naturally lead the reader to conclude that its author could not have mistaken the nature of rent, and that he must have seen that the quality of land which the exigencies of society might require to be taken into cultivation, would depend on “the ordinary price of its produce,” whether it were “sufficient to replace the stock, which must be employed in cultivating it, together with its ordinary profits. “
But he had adopted the notion that “there were some parts of the produce of land for which the demand must always be such as to afford a greater price than what is sufficient to bring them to market;” and he considered food as one of those parts.
He says, that “land, in almost any situation, produces a greater quantity of food than what is sufficient to maintain all the labour necessary for bringing it to market, in the most liberal way in which that labour is ever maintained. The surplus, too, is always more than sufficient to replace the stock which employed that labour, together with its profits. Something, therefore, always remains for a rent to the landlord.”
But what proof does he give of this?—no other than the assertion that “the most desert moors in Norway and Scotland produce some sort of pasture for cattle, of which the milk and the increase are always more than sufficient, not only to maintain all the labour necessary for tending them, and to pay the ordinary profit to the farmer, or owner of the herd or flock, but to afford some small rent to the landlord.” Now, of this I may be permitted to entertain a doubt; I believe that as yet in every country, from the rudest to the most refined, there is land of such a quality that it cannot yield a produce more than sufficiently valuable to replace the stock employed upon it, together with the profits ordinary and usual in that country. In America we all know that this is the case, and yet no one maintains that the principles which regulate rent, are different in that country and in Europe. But if it were true that England had so far advanced in cultivation, that at this time there were no lands remaining which did not afford a rent, it would be equally true, that there formerly must have been such lands; and that whether there be or not, is of no importance to this question, for it is the same thing if there be any capital employed in Great Britain on land which yields only the return of stock with its ordinary profits, whether it be employed on old or on new land. If a farmer agrees for land on a lease of seven or fourteen years, he may propose to employ on it a capital of 10,000l., knowing that at the existing price of grain and raw produce, he can replace that part of his stock which he is obliged to expend, pay his rent, and obtain the general rate of profit. He will not employ 11,000l., unless the last 1000l. can be employed so productively as to afford him the usual profits of stock. In his calculation, whether he shall employ it or not, he considers only whether the price of raw produce is sufficient to replace his expenses and profits, for he knows that he shall have no additional rent to pay. Even at the expiration of his lease his rent will not be raised; for if his landlord should require rent, because this additional 1000l. was employed, he would withdraw it; since, by employing it, he gets, by the supposition, only the ordinary and usual profits which he may obtain by any other employment of stock; and, therefore, he cannot afford to pay rent for it, unless the price of raw produce should further rise, or, which is the same thing, unless the usual and general rate of profits should fall.
If the comprehensive mind of Adam Smith had been directed to this fact, he would not have maintained that rent forms one of the component parts of the price of raw produce; for price is every where regulated by the return obtained by this last portion of capital, for which no rent whatever is paid. If he had adverted to this principle, he would have made no distinction between the law which regulates the rent of mines and the rent of land.
“Whether a coal mine, for example,” he says, “can afford any rent, depends partly upon its fertility, and partly upon its situation. A mine of any kind may be said to be either fertile or barren, according as the quantity of mineral which can be brought from it by a certain quantity of labour, is greater or less than what can be brought by an equal quantity from the greater part of other mines of the same kind. Some coal mines, advantageously situated, cannot be wrought on account of their barrenness. The produce does not pay the expense. They can afford neither profit nor rent. There are some, of which the produce is barely sufficient to pay the labour, and replace, together with its ordinary profits, the stock employed in working them. They afford some profit to the undertaker of the work, but no rent to the landlord. They can be wrought advantageously by nobody but the landlord, who being himself the undertaker of the work, gets the ordinary profit of the capital which he employs in it. Many coal mines in Scotland are wrought in this manner, and can be wrought in no other. The landlord will allow nobody else to work them without paying some rent, and nobody can afford to pay any.
“Other coal mines in the same country, sufficiently fertile, cannot be wrought on account of their situation. A quantity of mineral sufficient to defray the expense of working, could be brought from the mine by the ordinary, or even less than the ordinary quantity of labour; but in an inland country, thinly inhabited, and without either good roads or water-carriage, this quantity could not be sold.” The whole principle of rent is here admirably and perspicuously explained, but every word is as applicable to land as it is to mines; yet he affirms that “it is otherwise in estates above ground. The proportion, both of their produce and of their rent, is in proportion to their absolute, and not to their relative fertility.” But, suppose that there were no land which did not afford a rent; then, the amount of rent on the worst land would be in proportion to the excess of the value of the produce above the expenditure of capital and the ordinary profits of stock: the same principle would govern the rent of land of a somewhat better quality, or more favourably situated, and, therefore, the rent of this land would exceed the rent of that inferior to it, by the superior advantages which it possessed; the same might be said of that of the third quality, and so on to the very best. Is it not, then, as certain, that it is the relative fertility of the land, which determines the portion of the produce, which shall be paid for the rent of land, as it is that the relative fertility of mines determines the portion of their produce, which shall be paid for the rent of mines?
After Adam Smith has declared that there are some mines which can only be worked by the owners, as they will afford only sufficient to defray the expense of working, together with the ordinary profits of the capital employed, we should expect that he would admit that it was these particular mines which regulated the price of the produce from all mines. If the old mines are insufficient to supply the quantity of coal required, the price of coal will rise, and will continue rising till the owner of a new and inferior mine finds that he can obtain the usual profits of stock by working his mine. If his mine be tolerably fertile, the rise will not be great before it becomes his interest so to employ his capital; but if it be not tolerably fertile, it is evident that the price must continue to rise till it will afford him the means of paying his expenses, and obtaining the ordinary profits of stock. It appears, then, that it is always the least fertile mine which regulates the price of coal. Adam Smith, however, is of a different opinion: he observes, that “the most fertile coal mine, too, regulates the price of coals at all the other mines in its neighbourhood. Both the proprietor and the undertaker of the work find, the one that he can get a greater rent, the other, that he can get a greater profit, by somewhat underselling all their neighbours. Their neighbours are soon obliged to sell at the same price, though they cannot so well afford it, and though it always diminishes, and sometimes takes away altogether, both their rent and their profit. Some works are abandoned altogether; others can afford no rent, and can be wrought only by the proprietor.” If the demand for coal should be diminished, or if by new processes the quantity should be increased, the price would fall, and some mines would be abandoned; but in every case, the price must be sufficient to pay the expenses and profit of that mine which is worked without being charged with rent. It is, therefore, the least fertile mine which regulates price. Indeed, it is so stated in another place by Adam Smith himself, for he says, “The lowest price at which coals can be sold for any considerable time, is like that of all other commodities, the price which is barely sufficient to replace, together with its ordinary profits, the stock which must be employed in bringing them to market. At a coal mine for which the landlord can get no rent, but which he must either work himself, or let it alone all altogether, the price of coals must generally be nearly about this price.”
But the same circumstance, namely, the abundance and consequent cheapness of coals, from whatever cause it may arise, which would make it necessary to abandon those mines on which there was no rent, or a very moderate one, would, if there were the same abundance and consequent cheapness of raw produce, render it necessary to abandon the cultivation of those lands for which either no rent was paid, or a very moderate one. If, for example, potatoes should become the general and common food of the people, as rice is in some countries, one-fourth, or one-half of the land now in cultivation would probably be immediately abandoned; for if, as Adam Smith says, “an acre of potatoes will produce six thousand weight of solid nourishment, three times the quantity produced by the acre of wheat,” there could not be for a considerable time such a multiplication of people as to consume the quantity that might be raised on the land before employed for the cultivation of wheat; much land would consequently be abandoned, and rent would fall; and it would not be till the population had been doubled or trebled, that the same quantity of land could be in cultivation, and the rent paid for it as high as before.
Neither would any greater proportion of the gross produce be paid to the landlord, whether it consisted of potatoes, which would feed three hundred people, or of wheat, which would feed only one hundred; because, though the expenses of production would be very much diminished if the labourer's wages were chiefly regulated by the price of potatoes, and not by the price of wheat, and though, therefore, the proportion of the whole gross produce, after paying the labourers, would be greatly increased, yet no part of that additional proportion would go to rent, but the whole invariably to profits,—profits being at all times raised as wages fall, and lowered as wages rise. Whether wheat or potatoes were cultivated, rent would be governed by the same principle,—it would be always equal to the difference between the quantities of produce obtained with equal capitals, either on the same land, or on land of different qualities; and, therefore, while lands of the same quality were cultivated, and there was no alternation in their relative fertility or advantages, rent would always bear the same proportion to the gross produce.
Adam Smith, however, maintains that the proportion which falls to the landlord would be increased by a diminished cost of production, and, therefore, that he would receive a larger share as well as a larger quantity, from an abundant than from a scanty produce. “A rice field,” he says, “produces a much greater quantity of food than the most fertile corn field. Two crops in the year, from thirty to sixty bushels each, are said to be the ordinary produce of an acre. Though its cultivation, therefore, requires more labour, a much greater surplus remains after maintaining all that labour. In those rice countries, therefore, where rice is the common and favourite vegetable food of the people, and where the cultivators are chiefly maintained with it, a greater share of this greater surplus should belong to the landlord than in corn countries.”
Mr. Buchanan also remarks that “it is quite clear, that if any other produce, which the land yielded more abundantly than corn, were to become the common food of the people, the rent of the landlord would be improved in proportion to its greater abundance.”
If potatoes were to become the common food of the people, there would be a long interval during which the landlords would suffer an enormous deduction of rent. They would not probably receive nearly so much of the sustenance of man as they now receive, while that sustenance would fall to a third of its present value. But all manufactured commodities, on which a part of the landlord's rent is expended, would suffer no other fall than that which proceeded from the fall in the raw material of which they were made, and which would arise only form the greater fertility of the land, which might then be devoted to its production.
When, from the progress of population, land of the same quality as before should be taken into cultivation, the landlord would have not only the same proportion of the produce as before, but that proportion would also be of the same value as before. Rent, then, would be the same as before; profits, however, would be much higher, because the price of food, and consequently wages, would be much lower. High profits are favourable to the accumulation of capital. The demand for labour would further increase, and landlords would be permanently benefited by the increased demand for land.
Indeed, the very same lands might be cultivated much higher when such an abundance of food could be produced from them, and, consequently, they would, in the progress of society, admit of much higher rents, and would sustain a much greater population than before. This could not fail to be highly beneficial to landlords, and is consistent with the principle which this inquiry, I think, will not fail to establish—that all extraordinary profits are in their nature but of limited duration, as the whole surplus produce of the soil, after deducting from it only such moderate profits as are sufficient to encourage accumulation, must finally rest with the landlord.
With so low a price of labour as such an abundant produce would cause, not only would the lands already in cultivation yield a much greater quantity of produce, but they would admit of a great additional capital being employed on them, and a greater value to be drawn from them, and, at the same time, lands of a very inferior quality could be cultivated with high profits, to the great advantage of landlords, as well as to the whole class of consumers. The machine which produced the most important article of consumption would be improved, and would be well paid for according as its services were demanded. All the advantages would, in the first instance, be enjoyed by labourers, capitalists, and consumers; but, with the progress of population, they would be gradually transferred to the proprietors of the soil.
Independently of these improvements, in which the community have an immediate and the landlords a remote interest, the interest of the landlord is always opposed to that of the consumer and manufacturer. Corn can be permanently at an advanced price only because additional labour is necessary to produce it; because its cost of production is increased. The same cause invariably raises rent, it is therefore for the interest of the landlord that the cost attending the production of corn should be increased. This, however, is not the interest of the customer; to him it is desirable that corn should be low relatively to money and commodities, for it is always with commodities or money that corn is purchased. Neither is it the interest of the manufacturer that corn should be at a high price, for the high price of corn will occasion high wages, but will not raise the price of his commodity. Not only, then, must more of his commodity, or, which comes to the same thing, the value of more of his commodity, be given in exchange for the corn which he himself consumes, but more must be given, or the value of more, for wages, to his workmen, for which he will receive no remuneration. All classes, therefore, except the landlords, will be injured by the increase in the price of corn. The dealings between the landlord and the public are not like dealings in trade, whereby both the seller and buyer may equally be said to gain, but the loss is wholly on one side, and the gain wholly on the other; and if corn could by importation be procured cheaper, the loss in consequence of not importing is far greater on one side than the gain is on the other.
Adam Smith never makes any distinction between a low value of money and a high value of corn, and therefore infers, that the interest of the landlord is not opposed to that of the rest of the community. In the first case, money is low relatively to all commodities; in the other, corn is high relatively to all. In the first, corn and commodities continue at the same relative values; in the second, corn is higher relatively to commodities as well as money.
The following observation of Adam Smith is applicable to a low value of money, but it is totally inapplicable to a high value of corn. “If importation (of corn) was at all times free, our farmers and country gentlemen would probably, one year with another, get less money for their corn than they do at present when importation is at most times in effect prohibited; but the money which they got would be of more value, would buy more goods of all other kinds, and would employ more labour. Their real wealth, their real revenue, therefore, would be the same as at present, though it might be expressed by a smaller quantity of silver; and they would neither be disabled nor discouraged from cultivating corn as much as they do at present. On the contrary, as the rise in the real value of silver, in consequence of lowering the money price of corn, lowers somewhat the money price of all other commodities, it gives the industry of the country where it takes place some advantage in all foreign markets, and thereby tends to encourage and increase that industry. But the extent of the home market for corn must be in proportion to the general industry of the country where it grows, or to the number of those who produce something else to give in exchange of corn. But in every country the home market, as it is the nearest and most convenient, so is it likewise the greatest and most important market for corn. That rise in the real value of silver, therefore, which is the effect of lowering the average money price of corn, tends to enlarge the greatest and most important market for corn, and thereby to encourage instead of discouraging its growth.”
A high or low money price of corn, arising from the abundance and cheapness of gold and silver, is of no importance to the landlord, as every sort of produce would be equally affected, just as Adam Smith describes: but a relatively high price of corn is at all times greatly beneficial to the landlord; for, first, it gives him a greater quantity of corn for rent; and, secondly, for every equal measure of corn he will have a command, not only over a greater quantity of money, but over a greater quantity of every commodity which money can purchase.