While a member of the Institute of Social Research, Marcuse developed a model for critical social theory, created a theory of the new stage of state and monopoly capitalism, described the relationships between philosophy, social theory, and cultural criticism, and provided an analysis and critique of German fascism.
Ketika menjadi anggota Institute of Societal Research, Marcuse mengembangkan sebuah model teori sosial kritis, membuat sebuah teori tahap baru negara dan monopoli kapitalisme, menjelaskan relasi antara filsafat, teori sosial, dan kritisisme kultural, dan menyediakan analisis dan kritik atas fasisme Jerman.