Conversation so far:
What does he have to say about economics?
Unger's critique of economics begins with the identification of a key moment in economic history.
What is the key moment?
the analysis of production and exchange turned away from social theory and engaged in a quest for scientific objectivity.
Are there any other interesting aspects about this article?
In Unger's analysis, classical economics focused on the causal relations among social activities.

Question: What else did he have to say of note about economics?
Self-contained rewrite: In addition to an analysis, what else did Roberto Mangabeira Unger have to say of note about economics?