In the early 60s Negri joined the editorial group of Quaderni Rossi , a journal that represented the intellectual rebirth of Marxism in Italy outside of the realm of the communist party. The philosophical framework developed in the context of the journal came to be known as ” operaismo ” (workerism) and one of its central political concepts was “the refusal of work,” which did not refer to a refusal of creative or productive activity but rather a refusal of work within the established capitalist relations of production.

In the 1970s, Negri’s work continued to focus on labor, but the primary site of analysis shifted outside of the factory walls. Earlier Negri and his colleagues had centered their analyses on the working class (by which they understood male industrial factory workers), but now they developed a broader notion of proletariat that was meant to refer to all those whose labor is commanded and exploited under the rule of capital. They conceived their analyses and practices as moving out of the factory and into society. In these years Negri developed a theory of the “social worker” that tried to grasp the new subjective figure of social production and revolt. In effect, this intellectual project drew into question the conceptual division posed by the traditional Marxist conceptions of productive and unproductive or productive and reproductive labor along with the traditional political divisions between waged workers, unwaged workers, and the unemployed. The primary political consequence of these theories was to recognize all the various figures of social production, the entire proletariat conceived in this broad sense, as capable of revolt. Negri’s theoretical work in this period culminated in Marx Beyond Marx, a reinterpretation of Marx’s work that extended it beyond the limits of Marx’s own time and vision.