Theories of Surplus Value is a book that, unlike Marx, actually needs an introduction. Theories was intended to be collected and published as the fourth volume to Marx's Capital, but after Engels had successfully collected and published volumes two and three after Marx's death, Engels died before he could publish it. Theories has had a long history of being in-and-out of publication, and particularly in-and-out of being an actually accessible publication. In 1905, the infamously-hated-by-Lenin Karl Kautsky, published the first edition of the manuscript in three volumes separated and rearranged by Adam Smith in volume one, to David Ricardo in the other two volumes, with the breakup of the Ricardian school as the third volume. Kautsy's version circulated in print and was translated to many languages over the decades, remaining the sole version of Theories until The Institute of Marxism-Leninism published a new German version. This arrangement, while still relatively close to Kautsy's narrative arrangement of tracing surplus value from Smith to the Ricardian split into "vulgar economics," annotated the manuscript with different topic headings. This version was then translated into English by Progress Publishers and this is the version of the book which circulates today and is considered to be the most accurate version to Marx's notebooks. This Radical Reprint by Pattern Books is made to be accessible and as close to only manufacturing cost as possible. This third volume of Theories of Surplus Value covers the confusion between the concepts of commodity and capital, constant and variable capital and over-production, the problem of the relativizing the categories of value and equivalence, John Stuart Mill's reduction of Ricardian's economic theories, and the reductions of surplus-value into profit theory, and, as Marx continually says, its descent into being "vulgar political economy." These three volumes, in totality, are to show how the classical theories of value led to a theory stuck within the market paradigm and caught in the loop of capitalist circularity. For Marx, the current ontology of political economy only ruled within the scope of pragmatism within the market system, and these programs no longer offered any integrated theory of capitalism.
Karl Marx's Theories of Surplus-Value is not a book in any conventional sense. Drafted across twenty-three notebooks in 1861–63 as the historical companion to Capital, it is an enormous working manuscript—part critical history of political economy, part theoretical workshop, part polemical demolition—that Marx never finished for publication. Kautsky's 1905–10 edition, which the Institute of Marxism-Leninism's Preface denounces as a "direct falsification of Marxism" for its rearrangements and "objectivist" framing, is the version most readers have encountered. That charge matters because it exposes something essential about the text itself: Theories of Surplus-Value is an argument about form—about how economic categories appear, how they conceal their origins, and how the very act of arranging a history of ideas can either expose or entrench the mystifications those ideas produce. The book's most distinctive achievement is to demonstrate, through a relentless immanent critique of its predecessors, that the failure to distinguish surplus-value from its particular forms—profit, rent, interest—is not a minor analytical oversight but the constitutive error of an entire science, one that pushes political economy toward apologetics the moment class struggle sharpens and the surface appearances it takes for truth can no longer contain what they pretend to explain.
The core thesis, stated in the opening "General Observation," is deceptively simple: "All economists share the error of examining surplus-value not as such, in its pure form, but in the particular forms of profit and rent." What follows is a 370,000-word proof of that proposition, conducted as a pilgrimage through two centuries of economic thought. Marx's method is to reconstruct each thinker through extensive verbatim quotation—in English, French, German, and Italian—and then to read their errors not as mere mistakes but as symptoms. Every confusion, every circular definition, every relapse into pre-scientific categories registers a real theoretical problem that the thinker could not solve and that his successors either dissolved verbally, fell back from, or openly apologised for. The result is a peculiar kind of literary object: philosophy as detective story, where the crime is the disappearance of unpaid labour from the categories meant to explain it.
The investigation opens with Sir James Steuart, whom Marx treats as the rational expression of the Mercantile and Monetary systems. Steuart's distinction between "positive profit"—the growth of use-values, implying "no loss to any body"—and "relative profit," a mere "vibration of the balance of wealth between parties," already names the problem that will haunt the whole tradition: can profit arise from exchange alone, or must something happen in production? The Mercantile answer, that wealth comes from selling above value, traps profit within circulation—a zero-sum transfer that explains why one merchant gains but never why the system as a whole produces surplus. Steuart's formulation is scientifically honest in its limits; Marx treats it as the lucid statement of an error that later, cruder writers will revive unconsciously.
The decisive break comes with the Physiocrats, and Marx's treatment of them is among the most dialectically nuanced sections of the work. Across nine sub-sections, he reconstructs Quesnay, Turgot, and their followers as having made "the most brilliant" advance political economy had yet achieved: transferring the origin of surplus-value from circulation to direct production. The Physiocrats grasped that surplus must arise where production occurs, not where exchange happens. But they then distorted this insight by confining productive labour to agriculture and treating surplus-value as a physical "gift of nature"—the earth's fertility—rather than unpaid labour-time extracted from the cultivator. Marx's analogy is precise: this is like philosophy "first building itself up within the religious form of consciousness." The Physiocrats saw the new content (surplus arises in production) but could only express it in feudal costume (the land as source). Turgot comes closest to breaking through, for in his own text the "pure gift of nature" slides imperceptibly into the appropriation of the husbandman's unbought surplus-labour by the landowner. Marx pounces on this slippage: the Physiocratic system, pushed to its logical terminus, reveals that what it calls a gift is really extortion. The brilliant commentary on Quesnay's Tableau Économique in Chapter VI—tracing the five acts of circulation, distinguishing the mere reflux of money from genuine reproduction—shows Marx at his most constructively generous, treating the Tableau as a genuine attempt to portray capital's production as a process of reproduction even as he corrects its categories.
Adam Smith occupies the book's longest chapter and its deepest ambivalence. Marx's Smith is a figure of genuine tragedy: the thinker who reached "the very heart of the matter" and then "muddied" it. The central passage Marx quotes—from Book I, Chapter VI of the Wealth of Nations—shows Smith deriving profit correctly: "The value, that is, the quantity of labour which the workmen add to the materials, therefore, resolves itself in this case into two parts, of which the one pays their wages, the other the profits of their employer." This is surplus-value grasped at its origin: the worker adds more labour than his wages replace, and the excess is appropriated. But then Smith identifies this surplus-value with profit, makes wages, profit, and rent "the three original sources of all exchangeable value"—a formula Marx calls "false" because these are sources of revenue, not of value—and collapses into a vicious circle with his "natural price" that merely restates what it claims to explain. The duality runs deeper: Smith offers two definitions of value (labour-time contained vs. labour commanded) and two definitions of productive labour (labour exchanged against capital yielding surplus-value vs. labour realising itself in a vendible commodity), and Marx's chapter proceeds by isolating the correct definition in each pair and tracing the error to its source. The famous linen excursus—a twelve-yard numerical example that generates a "beautiful progression in infinitum"—destroys Smith's dogma that the whole social product resolves into revenue by demonstrating that constant capital (raw materials, machinery) must be reproduced in kind through the exchange of capital for capital, not paid for out of anyone's wages, profit, or rent. It is theoretical demolition by infinite regress: try to reduce constant capital to revenue, and you never close the circle.
What follows Smith is a gallery of vulgarisers—Garnier, Ganilh, Ferrier, Lauderdale, Say, Destutt de Tracy, Storch, Senior, Rossi, Chalmers—each of whom, in Marx's reading, dissolves Smith's productive/unproductive labour distinction to dignify the consumption of the idle. The pattern is relentless: the correct definition (productive labour produces surplus-value for capital) is replaced by apologetic variants (productive labour produces anything useful, anything saleable, anything immaterial, anything that saves the rich man's time). Say relabels unproductive labour as productive of "immaterial products"; Senior dignifies legislators, doctors, and soldiers as productive; Rossi invents the "labour-saving" apologia for servants. Marx's contempt for this literature is palpable—it is "belletristic trash," "toadyism"—but the analytical point is structural: the dissolution of the distinction is not intellectual sloppiness but class position made method. Once political economy must defend the existing order rather than analyse it, the categories that exposed exploitation must be collapsed into those that conceal it.
The long Part III turns to the disintegration of the Ricardian school, and here Marx's dialectical armoury operates at full capacity. Ricardo, admired for his consistent labour theory of value, is faulted for confusing surplus-value with profit and value with cost-price, for failing to grasp the value-form and money, and for treating capitalist production as the natural, absolute form of wealth—but his epigones are worse. James Mill, the first systematiser, "transforms the unity of opposites into the direct identity of opposites," dissolving the real contradictions between use-value and exchange-value, buying and selling, demand and supply into verbal fictions. This is Marx the Hegelian naming the precise logical sleight: where Ricardo saw a problem (how can equal capitals of different composition yield equal profit if value is determined by labour-time?), Mill sees an identity that merely needs asserting. Bailey reduces value to a mere exchange ratio—"denoting nothing intrinsic"—which Marx demolishes through the cotton-coffee tautology: if value is only a relation between two commodities, then the value of cotton expressed in coffee tells you nothing about why that relation holds, only that it holds. McCulloch, "the most pitiful embodiment" of the decline, extends the definition of labour to include "any sort of action or operation, whether performed by man, the lower animals, machinery, or natural agents," thereby identifying use-value with exchange-value and destroying the concept of value entirely. Torrens replaces labour-time with capital advanced as the determinant of value—a "vicious circle" that reverts to pre-Ricardian analysis and to profit upon expropriation. J.S. Mill's attempt to deduce the inverse proportionality of profits and wages from the law of value collapses into absurdity through the corn example: his capitalist would have to "sell 60 quarters" while possessing "only 40." In each case, Marx's procedure is the same: accept the Ricardian premises, follow them to their contradiction, and show that the contradiction can be resolved only by supplying the missing category—labour-power as a commodity, the distinction between constant and variable capital, the transformation of surplus-value into average profit—that Ricardo's school could not formulate.
The chapter on Malthus deserves special attention, for it is here that Marx's symptomatic reading reaches its full polemical force. Malthus's value-theory—"value equals labour commanded"—is exposed as a relapse into the Monetary System and profit upon expropriation. His doctrine of "unproductive consumers"—landlords, Church, State, the national debt—is the necessary "deus ex machina" demanded by the impossibility of capitalists mutually realising profit by selling to one another. Marx's demonstration is elegant: if all capitalists sell above value to each other at the same rate, no aggregate profit arises; a "third class" that buys without selling must be conjured. The devastating close reading of Malthus's plagiarism—he "Malthusianised" Sismondi's Nouveaux Principes, stole from Anderson and Townsend—is not ad hominem but structural: Malthus's apologetic project required him to suppress the contradictions Sismondi had recognised and to dress them in the language of natural limits and providential design. The social essence of his polemic is "landlordism, State and Church... tax-eaters, toadies"—open class defence dressed as economic science.
Against this disintegration, Marx sets the Ricardian socialists—the anonymous author of The Source and Remedy of the National Difficulties, Ravenstone, Hodgskin, and Bray—who "fight them upon their own ground, and with their own weapons." The Source and Remedy pamphlet is praised as the first to reduce surplus-value to surplus labour, and its proclamation that "Wealth is disposable time, and nothing more" is the book's most resonant counter-formula: value is labour-time, wealth is free time, and the whole capitalist apparatus exists to convert the second into the first and appropriate the difference. Hodgskin's polemic is sharper: "Capital is a sort of cabalistic word, like church or state, or any other of those general terms which are invented by those who fleece the rest of mankind to conceal the hand that shears them." His demonstration that the bread, milk, and meat consumed by workers are products of contemporaneous labour—not stored-up past labour—relocates productive power from objectified capital to living social labour and accumulated skill. Marx endorses the polemic but notes its limits: Hodgskin remains on "economically narrow-minded" ground, eliminating the capitalist while keeping the economic preconditions that reproduce him.
The Addenda to Part 3 are the book's theoretical summit, where Marx's genetic method traces surplus-value through its "process of ossification" from surplus labour → surplus-value → profit → average profit/cost-price → interest. Each form "is transformed more and more from a relationship into a thing," until interest-bearing capital—M–M', money that creates more money—appears as "the consummate automatic fetish, the self-expanding value, the money-making money," bearing "no longer any trace of its origin." The social relation is "consummated as a relation of things to themselves." Against this, Marx sets the worker co-operative factories as practical proof: they pay a salaried manager yet earn above the average rate of profit, demonstrating that the "labour of superintendence" is cheaply bought and the capitalist qua functionary superfluous. The Trinity Formula—land-rent, capital-interest, labour-wages—is named as "the most fetishistic expression of the relations of capitalist production," a "fiction without fantasy, a religion of the vulgar." Each term couples an irrational pair (land produces no value yet yields rent; capital is value yet acquires a second "price" distinct from its value—"as irrational as √-3") and presents them as harmonious, independent sources of wealth. The closing sections on Luther's polemic against usury are a strange and brilliant coda: Luther, who "perceives that usury exists equally in lending and selling," is "superior to Proudhon" because he attacks interest as an innate element of capital rather than a removable excrescence, and his portrait of the usurer as "a werewolf, more than all the tyrants, murderers and robbers" who "sits in peace and safety, not like an enemy, but like a friend and citizen, yet robs and murders more horribly than any enemy or incendiary" is quoted at length as a "highly picturesque" pre-capitalist glimpse of what capital becomes.
The book's weaknesses are inseparable from its form. It is a working manuscript, not a finished work, and parts of it read as notes toward arguments Marx never fully developed. The chapter summaries are uneven in density; the cross-references multiply beyond any reader's capacity to track. The prose oscillates between passages of extraordinary analytical clarity and stretches of relentless quotation that assume the reader shares Marx's appetite for the interminable errors of forgotten economists. More substantively, the historico-critical method, for all its power, occasionally flattens thinkers into positions: Smith's complexity is reduced to the duality Marx needs to diagnose; Ricardo's theoretical innovations are sometimes buried under the charge of what he failed to grasp. The treatment of the proletarian-Ricardians, while generous, never quite asks whether their Ricardian premises might themselves be part of the problem—whether "fighting them upon their own ground" can ever get beyond that ground. And the broader historical claims about slavery, colonialism, and the "Asiatic mode of production" are gestured at rather than argued, functioning as illustrations of a logic whose full historical specification would require a different kind of work.
Yet these limitations are also the book's condition of possibility. Theories of Surplus-Value is not a history of economic thought in any neutral sense; it is a history written from within the theoretical revolution it documents the prehistory of. Marx is excavating the tradition to find the categories he needs, and the excavation itself produces those categories. The book's value lies in this double movement: it reads the economists to extract what they grasped and what they obscured, and in doing so it generates the conceptual innovations—labour-power, constant and variable capital, the transformation of values into prices, the fetishism of capital, the distinction between classical and vulgar economy—that Capital would systematise. It is a book that argues, through its own procedure, that the history of a science is internal to that science: you cannot understand surplus-value without understanding why everyone before you failed to understand it, because the failure is not accidental but structured into the object itself.
Who should read this book is a harder question than it seems. It is not an introduction to Marx; it presupposes familiarity with Capital's categories and a tolerance for technical economic argument that few general readers possess. It is, however, essential for anyone who wants to understand Marx's method—not as abstract "dialectics" but as a concrete practice of reading that treats errors as evidence and contradictions as clues. It is also the indispensable companion to Capital's historical silences: where Capital presents its categories as achieved results, Theories of Surplus-Value shows them being won from the wreckage of a science that could not bear its own discoveries. For readers willing to follow Marx through the thickets of Garnier's sophistry and McCulloch's "incredible cobbling," the reward is a demonstration of critical thinking at its most muscular—an argument that the most abstract economic categories are saturated with class content, that every theory is a position taken in a social struggle, and that the failure to name surplus-value by its proper name is the intellectual form of the failure to abolish it.
The analysis of capital, within the bourgeois horizon, is essentially the work of the Physiocrats. It is this service that makes them the true fathers of modern political economy.
Marx crediting the Physiocrats for transferring the inquiry into surplus value from circulation to production — history of economics, surplus value, Physiocrats
While feudalism is thus made bourgeois, bourgeois society is given a feudal semblance.
On the contradictions of the Physiocratic system, which analysed capitalist production but clothed it in feudal forms — Physiocrats, feudalism, capitalism, ideology
Adam Smith very acutely notes that the really great development of the productive power of labour starts only from the moment when it is transformed into wage-labour, and the conditions of labour confront it on the one hand as landed property and on the other as capital. The development of the productive power of labour thus begins only under conditions in which the labourer himself can no longer appropriate its result.
Marx praising Smith's insight into the relationship between wage-labour and productivity — Adam Smith, wage-labour, productive forces, alienation
Profit is consequently nothing but a deduction from the value which the workmen have added to the material of labour. They add to the material, however, nothing but a new quantity of labour. The workman's labour-time therefore resolves itself into two parts: one for which he has received an equivalent, his wages, from the capitalist; the other which he gives to him gratis and which constitutes the profit.
Marx distilling Adam Smith's essential insight about the origin of surplus value — surplus value, profit, unpaid labour
An actor, for example, or even a clown, according to this definition, is a productive labourer if he works in the service of a capitalist to whom he returns more labour than he receives from him in the form of wages; while a jobbing tailor who comes to the capitalist's house and patches his trousers for him, producing a mere use-value for him, is an unproductive labourer.
Illustrating that productive labour is defined by its social form (exchange against capital), not by its material content — productive labour, social form, capitalism
A writer is a productive labourer not in so far as he produces ideas, but in so far as he enriches the publisher who publishes his works, or if he is a wage-labourer for a capitalist.
On productive labour being defined by the social relation of capital, not intellectual content — productive labour, intellectual labour, capitalism
It is the impossibility of living by any other means that compels our farm labourers to till the soil whose fruits they will not eat, and our masons to construct buildings in which they will not live. It is want that drags them to those markets where they await masters who will do them the kindness of buying them. It is want that compels them to go down on their knees to the rich man in order to get from him permission to enrich him.
Linguet's critique of the so-called freedom of the wage-labourer, quoted by Marx — wage-labour, freedom, coercion, class
He is free! That is precisely why I pity him. For that reason, he is much less cared for in the labours in which he is used. His life is much more readily hazarded. The slave was precious to his master because of the money he had cost him. But the handicraftsman costs nothing to the rich voluptuary who employs him.
Linguet's argument that formal freedom makes workers more disposable than slaves — freedom, slavery, wage-labour, disposability
The form of revenue and the sources of revenue are the most fetishistic expression of the relations of capitalist production. It is their form of existence as it appears on the surface, divorced from the hidden connections and the intermediate connecting links. Thus the land becomes the source of rent, capital the source of profit, and labour the source of wages. The distorted form in which the real inversion is expressed is naturally reproduced in the views of the agents of this mode of production. It is a kind of fiction without fantasy, a religion of the vulgar.
Marx's formulation of the 'trinity formula' as the supreme fetish of bourgeois political economy — fetishism, vulgar economy, ideology, trinity formula
Interest-bearing capital is the consummate automatic fetish, the self-expanding value, the money-making money, and in this form it no longer bears any trace of its origin. The social relation is consummated as a relation of things (money, commodities) to themselves.
On interest-bearing capital as the most complete mystification of the capital relation — fetishism, interest, capital, social relations
The essence of society consists in freeing the rich man from labour, giving him new organs, untiring members, which take upon themselves all the laborious operations the fruits of which he is to appropriate. That is the plan which slavery allows him to carry out without embarrassment.
Linguet on the fundamental social function of slavery and wage-labour alike — slavery, wage-labour, class, exploitation
Whatever may be due to the capitalist, he can only receive the surplus labour of the labourer; for the labourer must live.
From the anonymous pamphlet 'The Source and Remedy of the National Difficulties' (1821), praised by Marx for directly identifying surplus value as surplus labour — surplus labour, exploitation, subsistence
A nation is really rich when six hours instead of twelve hours are worked. Wealth is disposable time, and nothing more.
The anonymous pamphleteer's vision of genuine wealth as free time, which Marx reads as a vision of post-capitalist society — wealth, free time, disposable time, emancipation
In this contradiction, political economy merely expressed the essence of capitalist production or, if you like, of wage-labour, of labour alienated from itself, which stands confronted by the wealth it has created as alien wealth, by its own productive power as the productive power of its product, by its enrichment as its own impoverishment and by its social power as the power of society.
Marx summarising the central contradiction expressed in Ricardian political economy — alienation, contradiction, capitalism, wage-labour
Labour-time, even if exchange-value is eliminated, always remains the creative substance of wealth and the measure of the cost of its production. But free time, disposable time, is wealth itself, partly for the enjoyment of the product, partly for free activity which—unlike labour—is not dominated by the pressure of an extraneous purpose which must be fulfilled.
Marx on the distinction between labour-time as the measure of production costs and free time as genuine wealth — free time, wealth, labour-time, emancipation
Thus we have arrived at the point where political economy itself—on the basis of its analysis—declares the capitalist form of production, and consequently capital, to be not an absolute, but merely an 'accidental', historical condition of production.
On Ramsay's analysis showing that wage-labour is not a natural necessity but a contingent historical form — historical contingency, capitalism, political economy
In suppressing slavery, no claim was made that either wealth or its advantages were suppressed. It was therefore necessary that things should remain the same except in name. It has always been necessary for the majority of men to continue to live in the pay of and in dependence on the minority which has appropriated to itself all wealth. Slavery has therefore been perpetuated on the earth, but under a sweeter name.
Linguet arguing that the abolition of formal slavery merely changed the name of the servitude, not its substance — slavery, wage-labour, freedom, class domination
They begin by confusing the importance of the owner (a function so easy to perform) with the importance of the land.
Necker ridiculing economists who glorify property owners rather than the productive forces they merely own — property, ownership, ideology
Capital is commodities. If the value of commodities, then, depends upon the value of capital, it depends upon the value of commodities.
James Mill exposing the circularity of Torrens's attempt to determine value by the value of capital advanced — value theory, circular reasoning, Ricardian school
This superficial criticism—in exactly the same way as it wants to maintain commodities and combats money—now turns its wisdom and reforming zeal against interest-bearing capital without touching upon real capitalist production, but merely attacking one of its consequences. This polemic against interest-bearing capital, undertaken from the standpoint of capitalist production, a polemic which today parades as 'socialism', occurs, incidentally, as a phase in the development of capital itself.
Marx on vulgar socialism that attacks interest and finance capital while leaving the production relation intact — vulgar socialism, interest, reformism, fetishism
Rent has usually originated in the appropriation of the soil, at a time when the bulk of the people must cultivate it on such terms as they can obtain, or starve; and when their scanty capital of implements, seeds, etc., being utterly insufficient to secure their maintenance in any other occupation than that of agriculture, is chained with themselves to the land by an overpowering necessity.
Richard Jones on the violent origins of landed property and rent — rent, landed property, primitive accumulation, coercion
The day-labourers are born, grow up and are trained for the service of wealth without causing it the slightest expense, like the game that it massacres over its estates. It seems as if it really has the secret of which the unfortunate Pompey vainly boasted. Wealth has only to stamp on the ground, and from it emerge legions of hard-working men who contend among themselves for the honour of being at its disposal.
Linguet on how the reproduction of the working class costs capital nothing, unlike the purchase of slaves — labour reproduction, class, disposability, capitalism