Law of value in the context of "Exchange value"

Capital: A Critique of Political Economy (German: Das Kapital. Kritik der politischen Ökonomie), also known as Das Kapital (German: [das kapiˈtaːl]), is a foundational theoretical text in Marxist philosophy, economics, and politics by Karl Marx. His magnum opus, the work is a critical analysis of political economy, meant to reveal the economic patterns underpinning the capitalist mode of production. Das Kapital is in three volumes, of which only the first was published in Marx's lifetime (1867); the others were completed from his notes and published by his collaborator Friedrich Engels in 1885 and 1894.

The central argument of Das Kapital is that the motivating force of capitalism is in the exploitation of labour, whose unpaid work is the ultimate source of surplus value and profit. Beginning with an analysis of the commodity, Marx argues that the capitalist mode of production is a historically specific system where social relations are mediated by commodity exchange. He posits a labour theory of value, contending that the economic value of a commodity is determined by the socially necessary labour time required for its production. Under this system, the worker's capacity to labour (their labour power) is sold as a commodity, but its use-value—the ability to create new value—is greater than its exchange-value (the wage), allowing the capitalist to extract surplus value. This process drives capital accumulation, which in turn fosters technological change, the creation of a reserve army of labour, and a long-term tendency of the rate of profit to fall, leading to economic crises and intensifying class conflict.

The socialist mode of production, also known as socialism, is a specific historical phase of base and superstructural development and its corresponding set of social relations that emerge from capitalism in the schema of historical materialism within Marxist theory. Communist states that claimed to have established socialist material relations claimed to have established socialist states.

The Marxist definition of socialism is that of production for use-value (i.e., abolition of commodity production, direct satisfaction of human needs, or economic demands), therefore the law of value no longer directs economic activity. Marxist production for use is coordinated through conscious economic planning. According to Marx, distribution of products is based on the principle of "to each according to his needs"; Soviet models often distributed products based on the principle of "to each according to his contribution". Marx characterized the social relations of communism, the first stage of which is now called socialism, by the abolition of class distinctions and the common ownership of the means of production. As classes are abolished, the state withers away. Later self-titled communist states revised this definition of socialism and used the term more loosely as a rough equivalent to the dictatorship of the proletariat.

Production for use is a phrase referring to the principle of economic organization and production taken as a defining criterion for a socialist economy. It is held in contrast to production for profit. This criterion is used to distinguish communism from capitalism, and is one of the fundamental defining characteristics of communism.

This principle is broad and can refer to an array of different configurations that vary based on the underlying theory of economics employed. In its classic definition, production for use implied an economic system whereby the law of value and law of accumulation no longer directed economic activity, whereby a direct measure of utility and value is used in place of the abstractions of the price system, money, and capital. Alternative conceptions of socialism that do not use the profit system such as the Lange model, use instead a price system and monetary calculation.

The socialist calculation debate, sometimes known as the economic calculation debate, is a discourse on the subject of how a socialist economy would perform economic calculation given the absence of the law of value, money, financial prices for capital goods and private ownership of the means of production. More specifically, the debate is centered on the application of economic planning for the allocation of the means of production as a substitute for capital markets and whether or not such an arrangement would be superior to capitalism in terms of efficiency and productivity.

The historical debate was cast between the Austrian School represented by Ludwig von Mises and Friedrich Hayek, who argued against the feasibility of socialism; and between neoclassical and Marxian economists, most notably Cläre Tisch (as a forerunner), Oskar R. Lange, Abba P. Lerner, Fred M. Taylor, Henry Douglas Dickinson and Maurice Dobb, who took the position that socialism was both feasible and superior to capitalism. A central aspect of the debate concerned the role and scope of the law of value in a socialist economy. Although contributions to the question of economic coordination and calculation under socialism existed within the socialist movement prior to the 20th century, the phrase socialist calculation debate emerged in the 1920s beginning with Mises' critique of socialism.