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Socially necessary labour time in Marx's critique of political economy is what regulates the exchange value of commodities in trade. In short, socially necessary labour time refers to the average quantity of labour time that must be performed under currently prevailing conditions to produce a commodity. [1]
Unlike individual labour hours in the classical labour theory of value formulated by Adam Smith and David Ricardo, Marx's exchange value is conceived as a proportion (or 'aliquot part') of society's labour-time.
Marx did not define this concept in computationally rigorous terms, allowing for flexibility in using it in specific instances to relate average levels of labour productivity to social needs manifesting themselves as monetarily effective market demand for commodities.
Mathematically formalizing the relationship between socially necessary labour and commodity value is difficult, due to incessantly shifting social, physical or technical circumstances affecting the labour process.
In a market economy, labour expenditures producing outputs and the market demand for those outputs are constantly adjusting to each other. This is a complex process, in which enterprises operating at varying levels of productivity and unit-costs compete with each other in responding to the expansion and contraction of total market demand for their output. In the third volume of Das Kapital , Marx discusses how the market value (or "regulating price") of a commodity may be determined under different conditions of demand and productivity.
A given mass of new value is produced in a given time, but if and how this new value is realised in money terms and distributed as income and reinvestment is finally established only after products are sold at specific market prices. If the market for a commodity is oversupplied, then labour-time has been expended in excess of what was socially necessary, and exchange value falls. If the market for a commodity is undersupplied, then the labour-time expended on its production has been less than what is socially necessary, and exchange value rises.
The simplest definition of socially necessary labour time is the amount of labour time performed by a worker of average skill and productivity, working with tools of the average productive potential, to produce a given commodity. This is an "average unit labour-cost", measured in working hours.
If the average productivity is that of a worker who produces a commodity in one hour, while a less skilled worker produces the same commodity in four hours, then in these four hours the less skilled worker will have only contributed one hour's worth of value in terms of socially necessary labour time. Each hour worked by the unskilled worker will only produce a quarter of the social value produced by the average worker.
But the production of any commodity generally requires both labour and some previously produced means of production (or capital goods), like tools and materials. The amount of labour so required is called the direct labour input into the commodity. Yet the required capital goods have in their turn been produced (in the past) by labour and other capital goods; and so on for these other capital goods, and so on. The sum of all the amounts of labour, that were direct inputs into this backwards-stretching series of capital goods produced in the past, is called the indirect labour input into the commodity. Putting together the direct and indirect labour inputs, one finally gets the total labour input into the commodity, which may also be called the total embodied labour in it, or its direct and indirect labour contents.
However, by "socially necessary labour" Marx refers specifically to the total labour-time which on average is currently required to produce an output. It is this current labour cost which determines the value of output. So in a developed market Marx's exchange value refers to the average quantity of living labour which must be performed under currently prevailing conditions to produce a commodity. These conditions are incessantly changing, both in relation to quality of labour, quality of machinery, quality of distribution, and volumes of labour, machinery, sales in the branch, so estimating 'current' requirements is very much an exercise in approximation and dependent on the scales involved.
If producers produce commodities below the socially average labour-cost, they obtain extra profit upon sale at the ruling market prices, and conversely those producing at above this cost make a proportionate loss. A constant incentive therefore exists to reduce labour-costs by increasing the productivity of the labour force.
This can be done through higher exploitation, economising on costs, and better equipment. The long-run effect is that it takes less and less labour-time to produce a commodity. Enterprises cannot usually do very much about reducing their fixed input costs, because these are rarely under their control. But they can always try to reduce their labour costs.
"Socially necessary labour" therefore refers to at least three economic relationships:
In other words, we have to distinguish between
The former determines the unit value of commodities, hence their production price, and the latter determines the discrepancy between actual supply and effective demand, hence the discrepancy between market price and production price.
Marxist value theory treats economic value, i.e. exchange value, as an attribute of labour-products/commodities which exists by virtue of social relations of production in the capitalist mode of production. Thus, value is a purely social characteristic of commodities. The substance of the value of a commodity is a determinate quantity of social labour.
That is, the existence of exchange value presupposes social relations between people organised into a society. "Socially necessary labour time" encapsulates this essential "relatedness" of value—it is labour time assessed in relation to social needs, not merely labour time performed.
This distinction demarcates Marx from other political economists, but is often overlooked in accounts of Marx's value theory. Marx understood that the casual reader might mistakenly treat his category as interchangeable with its Ricardian predecessor, and in later editions and the Afterword to the Second German Edition implores readers to pay particular attention to the mediations between that old category and the one his own theory sought to establish. Marx's concept of value is not intended to be an equilibrium price. He does not assume market equilibrium, but aims to explain how the process of convergence between supply and demand practically occurs, that is, why supply and demand meet at a given price point when a sale is realised in a specific market. [2]
Marx's interpretation of value from the perspective of society as whole proved elusive for many critics.[ citation needed ] Marx tried to answer them in a letter: "the masses of products corresponding to different needs require different and quantitatively determined masses of the total labour of society...What can change in historically different circumstances is only the form in which these [economic] laws themselves. And the form in which this proportional distribution of labour asserts itself, in a state of society where the interconnection of social labour is manifested in the private exchange of the individual products of labour, is precisely the exchange value of these products." [3]
Despite these comments, Marx has been criticised strongly for adding the "socially necessary" qualification to labour time by the libertarian philosopher Robert Nozick in Anarchy, State, and Utopia , for whom it is an unjustified 'bolt-on' aspect of Marx's theory. [4]
One debate in Marxian economics concerns the question of whether the product-values formed and traded include both direct and indirect labour, or whether these product-values refer only to current average production costs (or the value of current average replacement costs).
Mirowski (1989) for example accuses Marx of vacillating between a field theory (labour-time currently socially necessary) and a substance theory of value (embodied labour-time). This kind of criticism is due to a confusion of the process of labour in general (adding use to a product, which under capitalism equates adding value to a commodity) with the task of quantifying the exchange value added.[ citation needed ] The general process affixes labour time to a commodity, and providing the commodity functions as such the quantity of labour time is immaterial—an abstract unknown, so to speak—and can be expressed in many ways, e.g. "embodied in", "attached to", "associated with", etc. Quantifying the amount of labour time associated with commodities requires focus on the social, shifting character of socially necessary labour, and specifically recognition that the quantities are 'current' i.e. incessantly changing. Today's value is different from yesterday's and tomorrow's, and the amount of value can only be determined numerically on the basis of a given point in time at which values are realized simultaneously at specific prices.[ citation needed ]
Thus Marx's theory is best interpreted as a field theory, but for the reasons just stated, modelling the determination of value by socially necessary labour time mathematically is a difficult exercise if not probably impossible.[ citation needed ]
The concept of socially necessary labour time is discussed on the OPE-L list (Outline of Political Economy)
The labor theory of value (LTV) is a theory of value that argues that the exchange value of a good or service is determined by the total amount of "socially necessary labor" required to produce it. The contrasting system is typically known as the subjective theory of value.
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In 20th-century discussions of Karl Marx's economics, the transformation problem is the problem of finding a general rule by which to transform the "values" of commodities into the "competitive prices" of the marketplace. This problem was first introduced by Marxist economist Conrad Schmidt and later dealt with by Marx in chapter 9 of the draft of volume 3 of Capital. The essential difficulty was this: given that Marx derived profit, in the form of surplus value, from direct labour inputs, and that the ratio of direct labour input to capital input varied widely between commodities, how could he reconcile this with a tendency toward an average rate of profit on all capital invested among industries, if such a tendency exists?
The organic composition of capital (OCC) is a concept created by Karl Marx in his theory of capitalism, which was simultaneously his critique of the political economy of his time. It is derived from his more basic concepts of 'value composition of capital' and 'technical composition of capital'. Marx defines the organic composition of capital as "the value-composition of capital, in so far as it is determined by its technical composition and mirrors the changes of the latter". The 'technical composition of capital' measures the relation between the elements of constant capital and variable capital. It is 'technical' because no valuation is here involved. In contrast, the 'value composition of capital' is the ratio between the value of the elements of constant capital involved in production and the value of the labor. Marx found that the special concept of 'organic composition of capital' was sometimes useful in analysis, since it assumes that the relative values of all the elements of capital are constant.
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In political economy and especially Marxian economics, exchange value refers to one of the four major attributes of a commodity, i.e., an item or service produced for, and sold on the market, the other three attributes being use value, economic value, and price. Thus, a commodity has the following:
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The law of the value of commodities, known simply as the law of value, is a central concept in Karl Marx's critique of political economy first expounded in his polemic The Poverty of Philosophy (1847) against Pierre-Joseph Proudhon with reference to David Ricardo's economics. Most generally, it refers to a regulative principle of the economic exchange of the products of human work, namely that the relative exchange-values of those products in trade, usually expressed by money-prices, are proportional to the average amounts of human labor-time which are currently socially necessary to produce them within the capitalist mode of production.
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Abstract labour and concrete labour refer to a distinction made by Karl Marx in his critique of political economy. It refers to the difference between human labour in general as economically valuable worktime versus human labour as a particular activity that has a specific useful effect within the (capitalist) mode of production.
In economics, economic value is a measure of the benefit provided by a good or service to an economic agent, and value for money represents an assessment of whether financial or other resources are being used effectively in order to secure such benefit. Economic value is generally measured through units of currency, and the interpretation is therefore "what is the maximum amount of money a person is willing and able to pay for a good or service?” Value for money is often expressed in comparative terms, such as "better", or "best value for money", but may also be expressed in absolute terms, such as where a deal does, or does not, offer value for money.
Capital. A Critique of Political Economy. Volume I: The Process of Production of Capital is the first of three treatises that make up Das Kapital, a critique of political economy by the German philosopher and economist Karl Marx. First published on 14 September 1867, Volume I was the product of a decade of research and redrafting and is the only part of Das Kapital to be completed during Marx's life. It focuses on the aspect of capitalism that Marx refers to as the capitalist mode of production or how capitalism organises society to produce goods and services.
In classical political economy and especially Karl Marx's critique of political economy, a commodity is any good or service produced by human labour and offered as a product for general sale on the market. Some other priced goods are also treated as commodities, e.g. human labor-power, works of art and natural resources, even though they may not be produced specifically for the market, or be non-reproducible goods. This problem was extensively debated by Adam Smith, David Ricardo, and Karl Rodbertus-Jagetzow, among others. Value and price are not equivalent terms in economics, and theorising the specific relationship of value to market price has been a challenge for both liberal and Marxist economists.
Criticisms of the labor theory of value affect the historical concept of labor theory of value (LTV) which spans classical economics, liberal economics, Marxian economics, neo-Marxian economics, and anarchist economics. As an economic theory of value, LTV is widely attributed to Marx and Marxian economics despite Marx himself pointing out the contradictions of the theory, because Marx drew ideas from LTV and related them to the concepts of labour exploitation and surplus value; the theory itself was developed by Adam Smith and David Ricardo. LTV criticisms therefore often appear in the context of economic criticism, not only for the microeconomic theory of Marx but also for Marxism, according to which the working class is exploited under capitalism, while little to no focus is placed on those responsible for developing the theory.
Constant capital, is a concept created by Karl Marx and used in Marxian political economy. It refers to one of the forms of capital invested in production, which contrasts with variable capital. The distinction between constant and variable refers to an aspect of the economic role of factors of production in creating a new value.
In Marxian economics, surplus value is the difference between the amount raised through a sale of a product and the amount it cost to manufacture it: i.e. the amount raised through sale of the product minus the cost of the materials, plant and labour power. The concept originated in Ricardian socialism, with the term "surplus value" itself being coined by William Thompson in 1824; however, it was not consistently distinguished from the related concepts of surplus labor and surplus product. The concept was subsequently developed and popularized by Karl Marx. Marx's formulation is the standard sense and the primary basis for further developments, though how much of Marx's concept is original and distinct from the Ricardian concept is disputed. Marx's term is the German word "Mehrwert", which simply means value added, and is cognate to English "more worth".
Marxian economics, or the Marxian school of economics, is a heterodox school of political economic thought. Its foundations can be traced back to Karl Marx's critique of political economy. However, unlike critics of political economy, Marxian economists tend to accept the concept of the economy prima facie. Marxian economics comprises several different theories and includes multiple schools of thought, which are sometimes opposed to each other; in many cases Marxian analysis is used to complement, or to supplement, other economic approaches. Because one does not necessarily have to be politically Marxist to be economically Marxian, the two adjectives coexist in usage, rather than being synonymous: They share a semantic field, while also allowing both connotative and denotative differences. An example of this can be found in the works of Soviet economists like Lev Gatovsky, who sought to apply Marxist economic theory to the objectives, needs, and political conditions of the socialist construction in the Soviet Union, contributing to the development of Soviet Political Economy.
In Capital, Volume I, Marx (1977a, 47) offers the following definition of socially necessary labour time: The labour-time socially necessary is that required to produce an article under the normal conditions of production, and with the average degree of skill and intensity prevalent at the time.
The market price certainly fluctuates according to variations in supply and demand, but these variations take effect around an axis. This is why it can be said that the market price is only fixed by the market, while its determination depends on the quantity of socially necessary abstract labour-time. This latter constitutes the axis around which prices pivot.