Karl Marx. Capital Volume One

Part IV: Production of Relative Surplus Value

Chapter Twelve: The Concept of Relative Surplus Value


That portion of the working day which merely produces an equivalent for the value paid by the capitalist for his labour-power, has, up to this point, been treated by us as a constant magnitude, and such in fact it is, under given conditions of production and at a given stage in the economic development of society. Beyond this, his necessary labour-time, the labourer, we saw, could continue to work for 2, 3, 4, 6, &c., hours. The rate of surplus-value and the length of the working day depended on the magnitude of this prolongation. Though the necessary labour-time was constant, we saw, on the other hand, that the total working day was variable. Now suppose we have a working day whose length, and whose apportionment between necessary labour and surplus-labour, are given. Let the whole line a c, a—b—c represent, for example, a working day of 12 hours; the portion of a b 10 hours of necessary labour, and the portion b c 2 hours of surplus-labour. How now can the production of surplus-value be increased, i.e., how can the surplus-labour be prolonged, without, or independently of, any prolongation of a c?

Although the length of a c is given, b c appears to be capable of prolongation, if not by extension beyond its end c, which is also the end of the working day a c, yet, at all events, by pushing back its starting-point b in the direction of a. Assume that b'—b in the line ab'bc is equal to half of b c
















1. The value of his average daily wages is determined by what the labourer requires “so as to live, labour, and generate.” (Wm. Petty: “Political Anatomy of Ireland,” 1672, p. 64.) “The price of Labour is always constituted of the price of necessaries ... whenever ... the labouring man’s wages will not, suitably to his low rank and station, as a labouring man, support such a family as is often the lot of many of them to have,” he does not receive proper wages. (J. Vanderlint, l.c., p. 15.) “Le simple ouvrier, qui n’a que ses bras et son industrie, n’a rien qu’autant qu’il parvient à vendre à d’autres sa peine... En tout genre de travail il doit arriver, et il arrive en effet, que le salaire de l’ouvrier se borne à ce qui lui est nécessaire pour lui procurer sa subsistance.” [The mere workman, who has only his arms and his industry, has nothing unless he succeeds in selling his labour to others ... In every kind of work it cannot fail to happen, as a matter of fact it does happen, that the wages of the workman are limited to what is necessary to procure him his subsistence.] (Turgot, “Réflexions, &c.,” Oeuvres, éd. Daire t. I, p. 10.) “The price of the necessaries of life is, in fact, the cost of producing labour.” (Malthus, “Inquiry into, &c., Rent,” London, 1815, p. 48, note.)

2. “Quando si perfezionano le arti, che non è altro che la scoperta di nuove vie, onde si possa compiere una manufattura con meno gente o (che è lo stesso) in minor tempo di prima.” (Galiani, l.c., p. 159.) “L’économie sur les frais de production ne peut donc être autre chose que l’économie sur la quantité de travail employé pour produire.” [Perfection of the crafts means nothing other than the discovery of new ways of making a product with fewer people, or (which is the same thing) in less time than previously] (Sismondi, “Études,” t. I. p. 22.)

3. “Let us suppose ... the products ... of the manufacturer are doubled by improvement in machinery ... he will be able to clothe his workmen by means of a smaller proportion of the entire return ... and thus his profit will be raised. But in no other way will it be influenced.” (Ramsay, l.c., pp. 168, 169.)

4. “A man’s profit does not depend upon his command of the produce of other men’s labour, but upon his command of labour itself. If he can sell his goods at a higher price, while his workmen’s wages remain unaltered, he is clearly benefited.... A smaller proportion of what he produces is sufficient to put that labour into motion, and a larger proportion consequently remains for himself.” (“Outlines of Pol. Econ.” London, 1832, pp. 49, 50.)

5. “If my neighbour by doing much with little labour, can sell cheap, I must contrive to sell as cheap as he. So that every art, trade, or engine, doing work with labour of fewer hands, and consequently cheaper, begets in others a kind of necessity and emulation, either of using the same art, trade, or engine, or of inventing something like it, that every man may be upon the square, that no man may be able to undersell his neighbour.” (“The Advantages of the East India Trade to England,” London, 1720, p. 67.)

6. “In whatever proportion the expenses of a labourer are diminished, in the same proportion will his wages be diminished, if the restraints upon industry are at the same time taken off.” (“Considerations Concerning Taking off the Bounty on Corn Exported,” &c., London, 1753, p. 7.) “The interest of trade requires, that corn and all provisions should be as cheap as possible; for whatever makes them dear, must make labour dear also ... in all countries, where industry is not restrained, the price of provisions must affect the price of labour. This will always be diminished when the necessaries of life grow cheaper.” (I. c., p. 3.) “Wages are decreased in the same proportion as the powers of production increase. Machinery, it is true, cheapens the necessaries of life, but it also cheapens the labourer.” (“A Prize Essay on the Comparative Merits of Competition and Co-operation.” London, 1834, p. 27.)

7. “Ils conviennent que plus on peut, sans préjudice, épargner de frais ou de travaux dispendieux dans la fabrication des ouvrages des artisans, plus cette épargne est profitable par la diminution des prix de ces ouvrages. Cependant ils croient que la production de richesse qui résulte des travaux des artisans consiste dans l’augmentation de la valeur vénale de leurs ouvrages.” (Quesnay: “Dialogues sur le Commerce et les Travaux des Artisans.” pp. 188, 189.)

8. “Ces spéculateurs si économes du travail des ouvriers qu’il faudrait qu’ils payassent.” [These speculators, who are so economical of the labour of workers they would have to pay] (J. N. Bidaut: “Du Monopole qui s’établit dans les arts industriels et le commerce.” Paris, 1828, p. 13.) “The employer will be always on the stretch to economise time and labour.” (Dugald Stewart: Works ed. by Sir W. Hamilton, Edinburgh, v., viii., 1855. “Lectures on Polit. Econ.,” p. 318.) “Their (the capitalists’) interest is that the productive powers of the labourers they employ should be the greatest possible. On promoting that power their attention is fixed and almost exclusively fixed.” (R. Jones: l.c., Lecture III.)


Transcribed by Hinrich Kuhls
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