For those benighted souls not fans of Sunset Boulevard, Krugman on macro economists waking up in a world looking very Keynesian.
Specifically, when Brad lists five key propositions of New Keynesian macro and declares that prominent Keynesians in the 60s and early 70s by and large didn’t agree with these propositions, he should now note that prominent Keynesians — by which I mean people like Oliver Blanchard, Larry Summers, and Janet Yellen — in late 2013 don’t agree with these propositions either. In important ways our understanding of macro has altered in ways that amount to a counter-counter-counterrevolution (I think I have the right number of counters), giving new legitimacy to what we might call Paleo-Keynesian concerns.
Or to put it another way, James Tobin is looking pretty good right now. (Incidentally, this was the point made by Bloomberg almost five years ago, inducing John Cochrane to demonstrate his ignorance of what had been going on macroeconomics outside his circle.)