Relations of productionRelations of production (Produktionsverhältnisse) is a concept frequently used by Karl Marx and Friedrich Engels in their theory of historical materialism and in Das Kapital. It is first explicitly used in Marx's published book The Poverty of Philosophy, although Marx and Engels had already defined the term in The German Ideology. Some social relations are voluntary or freely chosen (a person chooses to associate with another person or a group). But other social relations are involuntary, i.e.
Productive and unproductive labourProductive 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 (see Material Product System).
Means of laborThe means of labor (also called instruments of labor) is a concept in Marxist political economy that refers to "all those things with the aid of which man acts upon the subject of his labor, and transforms it." (Institute of Economics of the Academy of Sciences of the U.S.S.R., 1957) Means of labor include tools, machinery, buildings and land used for production, and infrastructure such as roads, telecommunications networks, and so forth. Labor, itself, defines "work, especially hard physical work.
Crisis theoryCrisis 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. Earlier analysis by Jean Charles Léonard de Sismondi provided the first suggestions of the systemic roots of Crisis. "The distinctive feature of Sismondi's analysis is that it is geared to an explicit dynamic model in the modern sense of this phrase ...
Production functionIn economics, a production function gives the technological relation between quantities of physical inputs and quantities of output of goods. The production function is one of the key concepts of mainstream neoclassical theories, used to define marginal product and to distinguish allocative efficiency, a key focus of economics. One important purpose of the production function is to address allocative efficiency in the use of factor inputs in production and the resulting distribution of income to those factors, while abstracting away from the technological problems of achieving technical efficiency, as an engineer or professional manager might understand it.
ProductivityProductivity is the efficiency of production of goods or services expressed by some measure. Measurements of productivity are often expressed as a ratio of an aggregate output to a single input or an aggregate input used in a production process, i.e. output per unit of input, typically over a specific period of time. The most common example is the (aggregate) labour productivity measure, one example of which is GDP per worker.
Market (economics)In economics, a market is a composition of systems, institutions, procedures, social relations or infrastructures whereby parties engage in exchange. While parties may exchange goods and services by barter, most markets rely on sellers offering their goods or services (including labour power) to buyers in exchange for money. It can be said that a market is the process by which the prices of goods and services are established. Markets facilitate trade and enable the distribution and allocation of resources in a society.
Law of valueThe law of the value of commodities (German: Wertgesetz der Waren), 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.
