During the 1970s and the early 1980s structural Marxism, associated with French theorists such as Louis Althusser, Étienne Balibar and Nicos Poulantzas, was very influential amongst leftist political scientists in both Britain and Denmark. Later, many followers of these schools of thought, inspired by the open and undogmatic Marxism of Antonio Gramsci, formed a neo-Gramscian wave in theory that criticised the economic determinism and class reductionism of structural Marxism. Some aimed to combine neo-Gramscian theory with post structuralist insights from the works of Michel Foucault, Jacques Derrida and Jacques Lacan. The result was the gradual elaboration of a post structuralist strand of Discourse Analysis. The UK-based scholars Ernesto Laclau and Chantal Mouffe (1985) developed a version of this that became highly influential not only in the UK, but also in Denmark, where a large number of students and researchers draw upon their work. The central tenet of Laclau and Mouffe's strand of Discourse Analysis uses the hermeneutic interpretation of meaning to shift the analytical focus from a positivist concern with objective facts to the discourse-theoretical concern with the conditions of meaning and identity.