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In economics, overproduction, oversupply, excess of supply or glut refers to excess of supply over demand of products being offered to the market. This leads to lower prices and/or unsold goods along with the possibility of unemployment.
The demand side equivalent is underconsumption; some consider supply and demand two sides to the same coin – excess supply is only relative to a given demand, and insufficient demand is only relative to a given supply – and thus consider overproduction and underconsumption equivalent. [1]
In lean thinking, overproduction of goods or goods in process is seen as one of the seven wastes (Japanese term: muda ) which do not add value to a product, and is considered "the most serious" of the seven. [2]
Overproduction is often attributed to previous overinvestment – creation of excess productive capacity, which must then either lie idle (or under capacity), which is unprofitable, or produce an excess supply.
Overproduction is the accumulation of unsalable inventories in the hands of businesses. Overproduction is a relative measure, referring to the excess of production over consumption. The tendency for an overproduction of commodities to lead to economic collapse is specific to the capitalist economy. In previous economic formations, an abundance of production created general prosperity. However, in the capitalist economy, commodities are produced for monetary profit. This so-called profit motive, the core of the capitalist economy, creates a dynamic whereby an abundance of commodities has negative consequences. In essence, an abundance of commodities disrupts the conditions for the creation of profit.
The overproduction of commodities forces businesses to reduce production in order to clear inventories. Any reduction in production implies a reduction in employment. A reduction in employment, in turn, reduces consumption. As overproduction is the excess of production above consumption, this reduction in consumption worsens the problem. This creates a "feed-back loop" or "vicious cycle", whereby excess inventories force businesses to reduce production, thereby reducing employment, which in turn reduces the demand for the excess inventories. The general reduction in the level of prices (deflation) caused by the law of supply and demand also forces businesses to reduce production as profits decline. Reduced profits render certain fields of production unprofitable.
Henry George argued that there could not be any such thing as overproduction in a general sense, but only in a relative sense:
Is there, then, such a thing as overproduction? Manifestly, there cannot be, in any general sense, until more wealth is produced than is wanted. In any unqualified sense, over- production is preposterous, when everywhere the struggle to get wealth is so intense; when so many must worry and strain to get a living, and there is actual want among large classes. The manner in which the strain of the war was borne shows how great are the forces of production which, in normal times, go to waste; proves that what we suffer from now is not overproduction, but underproduction.
Relative overproduction there, of course, may be. The desires for different forms of wealth vary in intensity and in sequence, and are related one with another. I may want both a pair of shoes and a dozen pocket-handkerchiefs, but my desire for the shoes is first and strongest; and upon the terms on which I can get the shoes may in large measure depend my ability to get the handkerchiefs. So, in the aggregate demand for the different forms of wealth, there is a similar relation. And as, under the division of labor characteristic of the modern industrial system, nearly all production is carried on with the view, not of consumption by the immediate producers, but of exchange for other productions, certain commodities may be produced so far in excess of their proper proportion to the production of other commodities, that the whole quantity produced cannot be exchanged for enough of those other commodities to give the usual returns to the capital and labor engaged in bringing them to market. This disproportionate production of some things, which is overproduction in relation to the production of other things, is the only kind of overproduction that can take place on any considerable scale, and the overproduction of which we hear so much is evidently of this character. [3]
Karl Marx outlined the inherent tendency of capitalism towards overproduction in his seminal work Das Kapital .
According to Marx, in capitalism, improvements in technology and rising levels of productivity increase the amount of material wealth (or use values) in society while simultaneously diminishing the economic value of this wealth, thereby lowering the rate of profit—a tendency that leads to the paradox, characteristic of crises in capitalism, of "reserve army of labour" and of “poverty in the midst of plenty”, or more precisely, crises of overproduction in the midst of underconsumption.
John Maynard Keynes formulated a theory of overproduction, which led him to propose government intervention to ensure effective demand. Effective demand are levels of consumption that corresponds to the level of production. If effective demand is achieved then there is no overproduction because all inventories are sold. Importantly, Keynes acknowledged that such measures could only delay and not solve overproduction.
Say's law states that "The more goods [for which there is demand] that are produced, the more those goods (supply) can constitute a demand for other goods". Keynes summarized this "law" as asserting that "supply creates its own demand". The consumer's desire to trade causes the potential consumer to become a producer to create goods that can be exchanged for the goods of others, goods are directly or indirectly exchanged for other goods. Because goods can only be paid for by other goods, no demand can exist without prior production. Following Say's law, overproduction (in the economy as a whole, specific goods can still be overproduced) is only possible in a limited sense.
Overproduction raises issues about the disposal of excess product stocks, which may have a significant environmental impact as well as raising additional waste disposal costs. More raw materials than necessary will have been used in production and, in some production processes, more undesirable pollution may have arisen due to the excess level of productive activity. [2]
Capitalism is an economic system based on the private ownership of the means of production and their operation for profit. Central characteristics of capitalism include capital accumulation, competitive markets, price systems, private property, property rights recognition, economic freedom, profit motive, entrepreneurship, commodification, voluntary exchange, wage labor and the production of commodities. In a market economy, decision-making and investments are determined by owners of wealth, property, or ability to maneuver capital or production ability in capital and financial markets—whereas prices and the distribution of goods and services are mainly determined by competition in goods and services markets.
In Marxist philosophy, the term commodity fetishism describes the economic relationships of production and exchange as being social relationships that exist among things and not as relationships that exist among people. As a form of reification, commodity fetishism presents economic value as inherent to the commodities, and not as arising from the workforce, from the human relations that produced the commodity, the goods and the services.
In classical economics, Say's law, or the law of markets, is the claim that the production of a product creates demand for another product by providing something of value which can be exchanged for that other product. So, production is the source of demand. In his principal work, A Treatise on Political Economy, Jean-Baptiste Say wrote: "A product is no sooner created, than it, from that instant, affords a market for other products to the full extent of its own value." And also, "As each of us can only purchase the productions of others with his/her own productions – as the value we can buy is equal to the value we can produce, the more men can produce, the more they will purchase."
Underconsumption is a theory in economics that recessions and stagnation arise from an inadequate consumer demand, relative to the amount produced. In other words, there is a problem of overproduction and overinvestment during a demand crisis. The theory formed the basis for the development of Keynesian economics and the theory of aggregate demand after the 1930s.
Use value or value in use is a concept in classical political economy and Marxist economics. It refers to the tangible features of a commodity which can satisfy some human requirement, want or need, or which serves a useful purpose. In Karl Marx's critique of political economy, any product has a labor-value and a use-value, and if it is traded as a commodity in markets, it additionally has an exchange value, defined as the proportion by which a commodity can be exchanged for other entities, most often expressed as a money-price.
Capital accumulation is the dynamic that motivates the pursuit of profit, involving the investment of money or any financial asset with the goal of increasing the initial monetary value of said asset as a financial return whether in the form of profit, rent, interest, royalties or capital gains. The aim of capital accumulation is to create new fixed and working capitals, broaden and modernize the existing ones, grow the material basis of social-cultural activities, as well as constituting the necessary resource for reserve and insurance. The process of capital accumulation forms the basis of capitalism, and is one of the defining characteristics of a capitalist economic system.
Labour power is the capacity to do work, a key concept used by Karl Marx in his critique of capitalist political economy. Marx distinguished between the capacity to do work, i.e. labour power, and the physical act of working, i.e. labour. Labour power exists in any kind of society, but on what terms it is traded or combined with means of production to produce goods and services has historically varied greatly.
Johann Karl Rodbertus , also known as Karl Rodbertus-Jagetzow, was a German economist and socialist and a leading member of the Linkes Zentrum (centre-left) in the Prussian national assembly.
In Marxian economics, economic reproduction refers to recurrent processes. Michel Aglietta views economic reproduction as the process whereby the initial conditions necessary for economic activity to occur are constantly re-created. Marx viewed reproduction as the process by which society re-created itself, both materially and socially.
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.
Productive and unproductive labour are concepts that were used in classical political economy mainly in the 18th and 19th centuries, which survive today to some extent in modern management discussions, economic sociology and Marxist or Marxian economic analysis. The concepts strongly influenced the construction of national accounts in the Soviet Union and other Soviet-type societies.
Criticism of capitalism is a critique of political economy that involves the rejection of, or dissatisfaction with the economic system of capitalism and its outcomes. Criticisms typically range from expressing disagreement with particular aspects or outcomes of capitalism to rejecting the principles of the capitalist system in its entirety.
In macroeconomics, a general glut is an excess of supply in relation to demand, specifically, when there is more production in all fields of production in comparison with what resources are available to consume (purchase) said production. This exhibits itself in a general recession or depression, with high and persistent underutilization of resources, notably unemployment and idle factories. The Great Depression is often cited as an archetypal example of a general glut.
Overaccumulation is one of the potential causes of the crisis of capital accumulation. In crisis theory, a crisis of capital occurs due to what Karl Marx refers to as the internal contradictions inherent in the capitalist system which result in the reconfiguration of production. The contradiction in this situation is realized because of the condition of capitalism that requires the accumulation of capital through the continual reinvestment of surplus value.
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.
Throughout modern history, a variety of perspectives on capitalism have evolved based on different schools of thought.
An Essay on Marxian Economics is an analytical essay written by in 1942 by economist Joan Robinson. The essay deals with the orthodox teachings of capital accumulation, the essential demand crisis and real wages by comparing it to Karl Marx's Das Kapital. It is a wide-ranging critique on Marx and Orthodox economics while also arguing for a long-term economic view that builds on the problems that Marx first identified in the exploitative nature of capitalism.
In Karl Marx's critique of political economy and subsequent Marxian analyses, the capitalist mode of production refers to the systems of organizing production and distribution within capitalist societies. Private money-making in various forms preceded the development of the capitalist mode of production as such. The capitalist mode of production proper, based on wage-labour and private ownership of the means of production and on industrial technology, began to grow rapidly in Western Europe from the Industrial Revolution, later extending to most of the world.
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".
Crisis theory, concerning the causes and consequences of the tendency for the rate of profit to fall in a capitalist system, is associated with Marxian critique of political economy, and was further popularised through Marxist economics.