3. Krugman should write a book on this (though it is simply wrong — and unnecessary — to claim that articles showing the potency of monetary policy were ever pushed out of the major journals. Somehow he cannot write correctly when the topic of real business cycle theory comes up.)
4. This is wrong (Obama, not Matt), an example of a dysfunctional management style (commenting on everything), and not an admission I would make as a relatively new but now gridlocked President, all in one.