I’m a big, though not uncritical admirer of Paul Krugman – of his straightforwardness and his aggression in what is almost always a worthy cause. And yet, reading Martin Wolf’s magnificent book rather inauspiciously titled The Shifts and the Shocks: What We’ve Learned-and Have Still to Learn-from the Financial Crisis, I’m struck by how modest Krugman’s achievement is.
Before his decisive turn with the coming of George Bush’s presidency and what Krugman saw as the rampant dishonesty of the campaigning and discourse of the right, Krugman styled himself as an aggressive defender of centrism, puncturing the fallacies of the heroes of the right and left. As he put it, he liked to catch them with their hands in the intellectual cookie jar and expose them in his pieces. Thus in his attacks on the ‘policy entrepreneurs’ of the Clinton era and before, like Lester Thurow and Robert Reich, he’d frequently ‘catch’ each of them not paying sufficient respect to the subtleties of comparative advantage and allegedly committing themselves to various other alleged intellectual fallacies.
While I was quite sympathetic to the points he was making on policy – these guys were often somewhere between little and a lot too slick in the way they presented their stuff - I didn’t really think that Krugman had demonstrated that they had in fact committed themselves to those fallacies. If you tried to read them ‘with’ the grain as it were, to get what they were trying to say – knowing also that they’re trying to communicate with people who are not steeped in economics – it wasn’t clear they were mistaken logically whether or not you ultimately agreed with them.
By contrast on the right we had all sorts of hijinks – massive tax cuts that paid for themselves, full Ricardian equivalence, modelling the Great Depression as a spontaneous holiday and various other grand themes thrown together with the flimsiest of evidence. In any event since Krugman has self-identified as a fighting Liberal, he’s been fantastically good at skewering his opponents – almost always when they need skewering, and at the same time he’s kept producing interesting academic(ish) papers. And in economics where models should be used to test, train and illustrate economic intuition and shouldn’t take over the show, academic(ish) papers are usually better than academic papers. Yet there’s been something missing. Continue reading