The Frankfurt School planned economic sections around the fate of classes in monopoly-fascism.

Evidence

The particular questions they were concerned with were, for example: what has happened to the proletariat in the monopoly-fascist phase? What has happened to the capitalist class? Is the bureaucracy a class? What is the present status of academic and non-academic discussion of Marxist theory? How does the monopoly implement its control of mass culture? — Rolf Wiggershaus, The Frankfurt School, 1314