Krugman’s 30 January piece ends with one of the best summaries  of the austerity idiocy.

Money quote:

Half a century ago, any economist — or for that matter any undergraduate who had read Paul Samuelson’s textbook “Economics” — could have told you that austerity in the face of depression was a very bad idea. But policy makers, pundits and, I’m sorry to say, many economists decided, largely for political reasons, to forget what they used to know. And millions of workers are paying the price for their willful amnesia.