Paul Krugman (2012): Economics in the Crisis:
To say the obvious: we’re now in the fourth year of a truly nightmarish economic crisis. I like to think that I was more prepared than most for the possibility that such a thing might happen; developments in Asia in the late 1990s badly shook my faith in the widely accepted proposition that events like those of the 1930s could never happen again. But even pessimists like me, even those who realized that the age of bank runs and liquidity traps was not yet over, failed to realize how bad a crisis was waiting to happen – and how grossly inadequate the policy response would be when it did happen.
And the inadequacy of policy is something that should bother economists greatly – indeed, it should make them ashamed of their profession, which is certainly how I feel. For times of crisis are when economists are most needed. If they cannot get their advice accepted in the clinch – or, worse yet, if they have no useful advice to offer – the whole enterprise of economic scholarship has failed in its most essential duty.