Miliband–Poulantzas debate

The Miliband–Poulantzas debate was a debate between Marxist theorists Ralph Miliband and Nicos Poulantzas over the nature of the state in capitalism. Their exchange was published in the New Left Review between 1969 and 1976. Miliband, arguing from what became known as an "instrumentalist" position, saw the state as a direct tool of a ruling capitalist class. Poulantzas, arguing from a "structuralist" perspective, maintained that the state could not be understood as a simple instrument, but was a structure that functioned to ensure the long-term reproduction of capitalism, granting it a degree of relative autonomy from the direct control of any single class.

The debate began with Poulantzas's 1969 review of Miliband's book The State in Capitalist Society. While praising Miliband's work for challenging the dominant pluralist theories of the state, Poulantzas criticised it for being too focused on the motivations and interpersonal relationships of the "state elite", a method he labelled "a problematic of the subject". He argued that the state's role is determined by the objective structures of the capitalist mode of production, not by the class origins or intentions of those who run it. Miliband replied by defending the importance of empirical analysis and accused Poulantzas of "structural super-determinism", an abstract formalism that made it impossible to account for the actions of social agents. The exchange became a central reference point for Marxist state theory in the 1970s and led to a wider "state debate" that fractured Marxist political theory into opposing schools of thought.

Although often framed as an irreconcilable conflict between empiricism and theory, or agency and structure, scholars have since re-evaluated the debate. Many now argue that the stark opposition between instrumentalism and structuralism was an oversimplification, a "polemical caricature", that obscured significant common ground between the two theorists. Both Miliband and Poulantzas were working to develop a critical theory of the state, and their later works showed a convergence on key issues, particularly the state's relative autonomy and its function in managing class conflict. The debate remains influential in political science and sociology for its rigorous exploration of state power, class, and ideology.