Cowen isn't the kind of partisan that Krugman portrays in his op eds. (For that matter, I doubt Krugman really is, either.)

Some quickly googled examples of Cowen agreeing with or praising Krugman:

http://www.marginalrevolution.com/marginalrevolution/2010/04... http://www.marginalrevolution.com/marginalrevolution/2008/12... http://www.marginalrevolution.com/marginalrevolution/2006/03...

Many more examples can be found of partial agreement, e.g. http://www.marginalrevolution.com/marginalrevolution/2009/02... and http://www.marginalrevolution.com/marginalrevolution/2006/03...

Grouping Krugman and Cowen isn't so bad; they're both professional economists, academics, and popularizers, though Krugman is more activist/hyper-partisan.

It's where SkyMarshal equates Cowen's professorial objections to Andy Grove with Glenn-Beck-ish punditry -- another nearby comment -- that I think he really goes off the rails.

Yeah, that was a bad exaggeration. Nobody is comparable to Glen Beck. My bad.