Conversation so far:
What did Unger critique about econimics?
Unger's critique of economics begins with the identification of a key moment in economic history, when the analysis of production and exchange turned away from social theory.
how did he identify this key moment?
In Unger's analysis, classical economics focused on the causal relations among social activities, which were connected with the production and distribution of wealth.
What else does the analysis say?
Classical economists asked questions about the true basis of value, activities that contributed to national wealth, systems of rights, or about the forms of government under which people grow rich.

Question: Who agreed with Unger about his criticism?
Self-contained rewrite: Who else agreed with Unger's criticism?