Cowen has no credibility on economics: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1880544
The intellectually honest comment to have made in the first place would have been "Certain economic theorists assert that Cowen [has no credibility|is an idiot|whatever they assert]".
That might have been a useful start to a discussion. Or not. Who knows. YMMV.
As it is, the comment is nothing more than gainsaying based on information you are either unwilling or incapable of summarizing and sharing.
It's really not much better than "Cowen's an idiot, neeyah".
In the interests of full disclosure, I know next to nothing about the OP and the topics discussed between the OP and this comment.
Sadly, I don't need to in order to comment usefully on your comments, so empty of content they were. Nothing personal, eh?