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Book. Rent, we again see, is the difference between the unequal returns to different parts of the capital employed on the soil. Whatever surplus any portion of agricultural capital produces, beyond what is produced by the same amount of capital on the worst soil, or under the most expensive mode of cultivation, which the existing demands of society compel a recourse to; that surplus will naturally be paid as rent from that capital, to the owner of the land on which it is employed. It was long thought by political economists, among the rest even by Adam Smith, that the produce of land is always at a monopoly value, because (they said) in addition to the ordinary rate of profit, it always †". SOInes thing further for rent. is we now see to be erroneous. A thing cannot be at a monopolyvalue, when its supply can be increased to an indefinite extent if we are only willing to incur the cost. If no more corn than the existing quantity is grown, it is because the value has not risen high enough to remunerate any one for growing it. Any land (not reserved for other uses, or for pleasure) which at the existing price, and by the existing processes, will yield the ordinary profit, is tolerably certain, unless some artificial hindrance intervenes, to be cultivated, although nothing may be left for rent. As long as there is any land fit for cultivation, which at the existing price cannot be profitably cultivated at all, there must be some land a little better, which will yield the ordinary profit, but allow nothing for rent: and that land, if within the boundary of a farm, will be cultivated by the farmer; if not so, probably by the proprietor, or by some other person on sufferance. Some such land at least, under cultivation, there can scarcely fail to be. Rent, therefore, forms no part of the cost of production which determines the value of agricultural produce. Circumstances no doubt may be conceived in which it might do so, and very largely too. We can imagine a country so fully peopled, and with all its cultivable soil so completely occu

pied, that to produce any additional

quantity would require more labour than the produce would feed: and if we suppose this to be the condition of the whole world, or of a country debarred from foreign supply, then, if population continued increasing, both the land and its produce would really rise to a monopoly or scarcity price. But this state of things never can have really existed anywhere, unless possibly in some small island cut off from the rest of the world; nor is there any danger whatever that it should exist It certainly exists in no known region at present. Monopoly, we have seen, can take effect on value, only through limitation of supply. In all countries of any extent there is more cultivable land than is yet cultivated: and while there is any such surplus, it is the same thing, so far as that quality of land is concerned, as if there were an indefinite quantity. What is practically limited in supply is only the better qualities; and even for those, so much rent cannot be demanded as would bring in the competition of the lands not yet in cultivation; the rent of a piece of land must be somewhat less than the whole excess of its productiveness over that of the best land which it is not yet profitable to cultivate; that is, it must be about equal to the excess above the worst land which it is profitable to cultivate. The land or the capital most unfavourably circumstanced among those actually employed, pays no rent; and that land or capital determines the cost of production which regulates the value of the whole produce. Thus rent is, as we have already seen, no cause of value, but the price of the privilege which the inequality of the returns to different portions of agricultural produce confers on all except the least favoured portion. Rent, in short, merely equalizes the profits of different farming capitals, by enabling the landlord to appropriate all extra gains occasioned by superiority of natural advantages. If all landlords were unanimously to forego their rent, they would but transfer it to the farmers, without benefiting the consumer; for the existing price of corn would still be an indispen

condition of the production of part of the existing supply, and if a part obtained that price the whole would obtain it. Rent, therefore, unless artificially , increased by restrictive laws, is no burthen on the consumer; it does not raise the price of corn, and is no otherwise a detriment to the public, than inasmuch as if the state had retained it, or imposed an equivalent in the shape of a land-tax, it would then have been a fund applicable to general instead of private advantage.

§ 3. Agricultural productions are not the only commodities which have several different costs of production at once, and which, in consequence of that difference, and in proportion to it, afford a rent. Mines are also an instance. Almost all kinds of raw material extracted from the interior of the earth —metals, coals, precious stones, &c., are obtained from mines differing considerably in fertility, that is, yielding very different quantities of the product to the same quantity of labour and capital. This being the case, it is an obvious question, why are not the most fertile mines so worked as to supply the whole market? No such question can arise as to land; it being self. evident, that the most fertile lands could not possibly be made to supply the whole demand of a fully-peopled country; and even of what they do yield, a part is extorted from them by a labour and outlay as great as that required to grow the same amount on worse land. But it is not so with mines; at least, not universally. There are, perhaps, cases in which it is impossible to extract from a particular vein, in a given time, more than a certain quantity of ore, because there is only a limited surface of the vein exposed, on which more than a certain number of labourers cannot be simultaneously employed. But this is not true of all mines. In collieries, for example, some other cause of limitation must be sought for. In some instances the owners limit the quantity raised, in order not too rapidly to exhaust the mine: in others there are said to be combinations of owners, to

keep up a monopoly price by limiting the production. Whatever be the causes, it is a fact that mines of dif. ferent degrees of richness are in operation, and since the value of the produce must be proportional to the cost of production at the worst mine (fertility and situation taken to it. is more than proportional to that of the best. All mines superior in produce to the worst actually worked, will yield, therefore, a rent equal to the excess. They may yield more; and the worst mine may itself yield a rent. Mines being comparatively few, their qualities do not graduate gently into one another, as the qualities of land do; and the demand may be such as to keep the value of the produce considerably above the cost of production at the worst mine now worked, without being sufficient to bring into operation a still worse. During the interval, the produce is really at a scarcity value. Fisheries are another example. Fisheries in the open sea are not appropriated, but fisheries in lakes or rivers almost always are so, and likewise oyster-beds or other particular fishing grounds on coasts. We may take salmon fisheries as an example of the whole class. Some rivers are far more roductive in salmon than others. one, however, without being exhausted, can supply more than a very limited demand. The demand of a country like England can only be supplied by taking salmon from many different rivers of unequal productive. ness, and the value must be sufficient to repay the cost of obtaining the fish from the least productive of these. All others, therefore, will if appropriated afford a rent equal to the value of their superiority. . Much higher than this it cannot be, if there are salmon rivers accessible which from distance or inferior productiveness have not yet con: tributed to supply the market. If there are not, the value, doubtless, may rise to a scarcity rate, and the worst fisheries in use may then yield a considerable rent. Both in the case of wines and ot fisheries, the natural order of events is liable to be interrupted by the opening of a new mine, or a new fishery, of superior quality to some of those already in use. The first effect of such an incident is an increase of the supply; which of course lowers the value to call forth an increased demand. This reduced value may be no longer suf. ficient to remunerate the worst of the existing mines or fisheries, and these may consequently be abandoned. If the superior mines or fisheries, with the addition of the one newly opened, roduce as much of the commodity as is required at the lower value corresponding to their lower cost of production, the fall of value will be permanent, and there will be a corresponding fall in the rents of those mines or fisheries which are not abandoned. In this case, when things have permanently adjusted themselves, the result will be, that the scale of qualities which supply the market will have been cut short at the lower end, while a new insertion will have been made in the scale at some point higher up; and the worst mine or fishery in use—the one which regulates the rents of the superior qualities and the value of the commodity—will be a mine or fishery of better quality than that by which they were previously regulated. Land is used for other purposes than agriculture, especially for residence; and when so used, yields a rent, determined by principles similar to those already laid down. The ground rent of a building, and the rent of a garden or park attached to it, will not be less than the rent which the same land would afford in agriculture: but may be greater than this to an indefinite amount: the surplus being either in consideration of beauty or of convenience, the convenience often consisting in superior facilities for ecuniary gain. Sites of remarkable ". are generally limited in supply, and therefore, if in great demand, are at a scarcity, value. Sites superior only in convenience, are governed as to their value by the ordinary principles of rent. The ground rent ..? a house in a small village is but little higher than the rent of a similar patch of P.E.

ground in the open fields: but that of a shop in Cheapside will exceed these, by the whole amount at which people estimate the superior facilities of moneymaking in the more crowded place. The rents of wharfage, dock and harbour room, water-power, and many other privileges, may be analysed on similar principles.

§ 4. Cases of extra profit analogous to rent, are more frequent in the transactions of industry than is sometimes supposed. Take the case, for example, of a patent, or exclusive privilege for the use of a process by which cost of production is lessened. If the value of the product continues to be regulated by what it costs to those who are obliged to persist in the old process, the patentee will make an extra profit equal to the advantage which his process possesses over theirs. This extra profit is essentially similar to rent, and sometimes even assumes the form of it; the patentee allowing to other producers the use of his privilege, in consideration of an annual payment. So long as he, and those whom he associates in the privilege, do not produce enough to supply the whole market, so long the original cost of production, being the necessary condition of producing a part, will regulate the value of the whole; and the patentee will be enabled to keep up his rent to a full equivalent for the advantage which his process gives him. In the commencement indeed he will probably forego a part of this advantage for the sake of underselling others: the increased supply which he brings forward will i. the value, and make the trade a bad one for those who do not share in the privilege: many of whom therefore will gradually retire, or restrict their operations, or enter into arrangements with the patentee, As his supply increases theirs will diminish, the value meanwhile continuing slightly depressed. But if he stops short in his operations before the market is wholly supplied by the new process, things will again adjust them selves to what was the natural value before the invention was * and the benefit of the improvement will accrue solely to the patentee. The extra gains which any producer or dealer obtains through superior talents for business, or superior business arrangements, are very much of a similar kind. If all his competitors had the same advantages, and used them, the benefit would be transferred to their customers, through the diminished value of the article: he only retains it for himself because he is able to bring his commodity to market at a lower cost, while its value is determined by a higher. All advantages, in fact, which one competitor has over another, whether natural or acquired, whether personal or the result of social arrangements, bring the commodity, so far, into the Third Class, and assimilate the possessor of the advantage to o receiver of rent. Wages and profits represent the universal elements in production, while rent may be taken to represent, the differential and peculiar: any difference in favour of certain producers, or in favour of production in certain circumstances, being the source of a gain, which, though not called

rent unless paid periodically by, one person to another, is governed by laws entirely the same with it. The price paid for a differential advantage in producing a commodity, cannot enter into the general cost of production of the commodity. A commodity may, no doubt, in some contingencies, yield a rent even under the most disadvantageous circumstances of its production; but onl when it is, for the time, in the condition of those commodities which are absolutely limited in supply, and is therefore selling at a scarcity value; which never is, nor has been, nor can be, a permanent condition of any of the .." rent-yielding commodities: uness through their approaching exhaustion, if they are mineral products (coal, for example), or through an increase of population, continuing after a further increase of production becomes impossible; a contingency, which the almost inevitable progress of human culture, and improvement in the long interval which has first to elapse, for. bids us to consider as probable.



§ 1. WE have now attained a favourable point for looking back, and taking

a simultaneous view of the space which we have traversed since the commencement of the present Book. The following are the principles of the theory of Value, so far as we have yet

ascertained them.

I. Walue is a relative term. The value of a thing means the quantity of Some other thing, or of things in general, which it exchanges for. The values of all things can never, therefore, rise or fall simultaneously. There is no such thing as a general rise or a eneral fall of values. Every rise of vaue supposes a fall, and every fall a rise.

he temporary or market value

of a thing depends on the demand and supply; rising as the demand rises, and falling as the supply rises. The demand, however, varies with the value, being generally greater when the thing is cheap than when it is dear; and the value always adjusts itselfin such a manner, that the demand is equal to the supply.

III. Besides their temporary value, things have also a permanent, or as it may be called, a Natural Value, to which the market value, after every variation, always tends to return ; and the oscillations compensate for one another, so that, on the average, commodities exchange at about their natural value.

IV. The natural value of some things is a scarcity value: but most things naturally exchange for one another in the ratio of their cost of production, or at what may be termed their Cost Value. V. The things which are naturally and permanently at a scarcity value, are those of which the supply cannot be increased at all, or not sufficiently to satisfy the whole of the demand which would exist for them at their cost value. VI. A monopoly value means, a scarcity value. Monopoly cannot give a value to anything, except through a limitation of the supply. VII. Every commodity of which the supply can be indefinitely increased by labour and capital, exchanges for other things proportionally to the cost necessary for producing and bringing to market the most costly portion of the supply required. The natural value is o with the Cost Value, and the cost value of a thing, means the cost value of the most costly portion of it. VIII. Cost of Production consists of several elements, some of which are constant and universal, others occasional. The universal elements of cost of production are, the wages of the labour, and the profits of the capital. The occasional elements are, taxes, and any extra cost occasioned by a scarcity value of some of the requisites. IX. Rent is not an element in the cost of production of the commodity which yields it: except in the cases, (rather conceivable than actually existing) in which it results from, and represents, a scarcity value. But when land capable of yielding rent in agriculture is applied to some other purpose, the rent which it would have yielded is an element in the cost of production of the commodity which it is engo to produce. . Omitting the occasional elements; things which admit of indefinite in. crease, naturally and permanently exchange for each other according to the comparative amount of wages which must be paid for producing them, and the comparative amount of profits which must be obtained by the capitalists who pay those wages.

XI. The comparative amount of wages does not depend on what wages are in themselves. High wages do not make high values, nor low wages low values. The comparative amount of wages depends partly on the comparative quantities of labour required, and partly on the comparative rates of its remuneration.

XII. So, the comparative rate of profits does not depend on what profits are in themselves; nor do high or low profits make high or low values. It depends partly on the comparative lengths of time during which the capital is employed, and partly on the comparative rate of profits in different els. ployments.

XJII. If two things are made by the same quantity of labour, and that labour paid at the same rate, and if the wages of the labourer have to be advanced for the same space of time, and the nature of the employment does not require that there be a permanent difference in their rate of profit; then, whether wages and profits be high or low, and whether the quantity of labour expended be much or little, these two things will, on the average, exchange for one another.

XIV. If one of the two things commands, on the average, a greater value than the other, the cause must be that it requires for its production either a greater quantity of labour, or a kind of labour permanently paid at a higher rate; or that the capital, or part of the capital, which supports that labour, must be advanced for a longer period; or lastly, that the production is attended with some circumstance which requires to be compensated by a permanently higher rate of profit.

V. Of these clements, the quantity

of labour required for the production is the most important: the effect of the others is smaller, though none of them are insignificant.

XVI. The lower profits are, the less important become the minor elements of cost of production, and the less do commodities deviate from a value proportioned to the quantity and quality of the labour required for their production.

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