Superprofit, surplus profit or extra surplus-value (extra-Mehrwert) is a concept in Karl Marx's critique of political economy subsequently elaborated by Vladimir Lenin and other Marxist thinkers.
The term superprofit (extra surplus-value) was first used by Marx in Das Kapital. It refers to above-average enterprise profits, arising in three main situations:
Technologically advanced firms operating at above average productivity in a competitive growing market.
Under conditions of declining demand, only firms with above-average productivity would obtain the previous socially average profit rate as the rest would book lower profits.
Monopolies of resources or technologies, yielding what are effectively land rents, mining rents, or technological rents.
Although Marx does not discuss this in detail (beyond referring to international productivity differentials in the world economy), there could be included a fourth case, namely superprofits arising from structural unequal exchange in the world economy. In this case, superprofit arises simply through buying products cheaply in one place and selling them at a much higher price elsewhere, yielding an above-average profit margin. This type of superprofit may not be attributable to extra productivity or monopoly conditions and represent only a transfer of value from one place to another.
According to Leninism, superprofits are extracted from the workers in colonial (or Third World) countries by the imperialist powers (in the First World). Part of these superprofits are then distributed (in the form of increased living standards) to the workers in the imperialists' home countries in order to buy their loyalty, achieve political stability and avoid a workers' revolution, usually by means of reformist labor parties. The workers who receive a large enough share of the superprofits have an interest to defend the capitalist system, so they become a labor aristocracy.
Superprofit in Marxist–Leninist theory is the result of unusually severe exploitation or superexploitation.
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La plus-value (ou parfois survaleur) est un concept forgé par Proudhon, puis repris et développé par Karl Marx dans sa critique de l'économie politique et de l'exploitation capitaliste, et ensuite détaillé dans Le Capital. Karl Marx reprend et complète la théorie de la valeur des économistes classiques (Adam Smith, David Ricardo, etc.), et développe l'idée que la source de la valeur d’échange d’une marchandise est la quantité de travail (socialement nécessaire) qui y est incorporée.
vignette|150px|Karl Marx Le Capital. Critique de l'économie politique (du titre original allemand Das Kapital. Kritik der politischen Ökonomie) est l'ouvrage majeur du philosophe et théoricien de l'économie politique allemand Karl Marx. Marx a consacré plus de 20 ans de sa vie à l'écriture de cette œuvre, mais n’en a achevé qu’une partie : le premier livre, publié le est dédicacé à Wilhelm Wolff, consacré au développement de la production capitaliste. Des brouillons de Marx ont été utilisés par Friedrich Engels pour publier les livres 2 et 3, en 1885 et 1894.
The theory of imperialism refers to a range of theoretical approaches to understanding the expansion of capitalism into new areas, the unequal development of different countries, and economic systems that may lead to the dominance of some countries over others. These theories are considered distinct from other uses of the word imperialism which refer to the general tendency for empires throughout history to seek power and territorial expansion. The theory of imperialism is often associated with Marxist economics, but many theories were developed by non-Marxists.