Analytical Marxism is an approach to Marxist theory that was prominent amongst English-speaking philosophers and social scientists during the 1980s. It was mainly associated with the September Group of academics, so called because of their biennial September meetings to discuss common interests. Self-described as "Non-Bullshit Marxism", the group was characterized, in the words of David Miller, by "clear and rigorous thinking about questions that are usually blanketed by ideological fog." The most prominent members of the group were G. A. Cohen, John Roemer, Jon Elster, Adam Przeworski, Erik Olin Wright, Hillel Steiner, and Philippe van Parijs.
Members of this school seek to apply the techniques of analytic philosophy, along with tools of modern social science such as rational choice theory to the elucidation of the theories of Karl Marx and his successors. The best-known member of this school is Oxford University philosopher G.A. Cohen, whose Karl Marx's Theory of History: A Defence (1978) helped start this school. In that book, Cohen attempted to apply the tools of logical and linguistic analysis to the elucidation and defense of Marx's materialist conception of history. Other prominent Analytical Marxists include the economist John Roemer, the social scientist Jon Elster, and the sociologist Erik Olin Wright. All these people have attempted to build upon Cohen's work by bringing to bear modern social science methods, such as rational choice theory, to supplement Cohen's use of analytic philosophical techniques in the interpretation of Marxian theory.