In addition to the various schools of thought, which emphasise or modify elements of classical Marxism, several Marxian concepts have been incorporated into an array of social theories. This has led to widely varying conclusions.[6] Alongside Marx's critique of political economy, the defining characteristics of Marxism have often been described using the terms "dialectical materialism" and "historical materialism", though these terms were coined after Marx's death and their tenets have been challenged by some self-described Marxists.[7]
^Wolff, Richard; Resnick, Stephen (1987). Economics: Marxian versus Neoclassical. Johns Hopkins University Press. p. 130. ISBN978-0801834806. The German Marxists extended the theory to groups and issues Marx had barely touched. Marxian analyses of the legal system, of the social role of women, of foreign trade, of international rivalries among capitalist nations, and the role of parliamentary democracy in the transition to socialism drew animated debates ... Marxian theory (singular) gave way to Marxian theories (plural).
^"Radical left". Dictionary.com. Retrieved 16 July 2022. Radical left is a term that refers collectively to people who hold left-wing political views that are considered extreme, such as supporting or working to establish communism, Marxism, Maoism, socialism, anarchism, or other forms of anticapitalism. The radical left is sometimes called the far left.
^O'Hara, Phillip (2003). Encyclopedia of Political Economy, Volume 2. Routledge. p. 107. ISBN978-0415241878. Marxist political economists differ over their definitions of capitalism, socialism and communism. These differences are so fundamental, the arguments among differently persuaded Marxist political economists have sometimes been as intense as their oppositions to political economies that celebrate capitalism.
^Dworkin, Dennis (1997). Cultural Marxism in Post-War Britain: History, the New Left, and the Origins of Cultural Studies. Durham: Duke University Press.
^Hartley, John (2003). "Culture from Arnold to Schwarzenegger: Imperial Literacy to Pop Culture (destination democracy?)". A Short History of Cultural Studies. London: SAGE Publications. pp. 31–57.