His first main work "The Critique of Power: Reflective Stages in a Critical Social Theory" explores the affinities between the Frankfurt School and Michel Foucault. In his second main work "The Struggle for Recognition: Moral Grammar of Social Conflicts", the recognition concept is derived mainly from G. W. F. Hegel's early social philosophical works, but is supplemented by George Herbert Mead's social psychology, Jürgen Habermas' communicative ethics, and Donald Winnicott's object relations theory. Honneth's critical adaptation of these is the basis of his critical social theory, which attempts to remedy the deficits of previous approaches. In 2003, Honneth co-authored "Recognition or Redistribution?" with the feminist philosopher Nancy Fraser, who criticizes the priority of ethical categories such as recognition over structural social-political categories such as redistribution in Honneth's thought. His recent work "Reification" reformulates this key "Western Marxist" concept in terms of intersubjective relations of recognition and power. For Honneth, all forms of reification are due to intersubjectively based pathologies rather than the structural character of social systems such as capitalism as argued by Karl Marx and György Lukács.