This was the month the confidence fairy died.

For the past two years most policy makers in Europe and many politicians and pundits in America have been in thrall to a destructive economic doctrine. According to this doctrine, governments should respond to a severely depressed economy not the way the textbooks say they should — by spending more to offset falling private demand — but with fiscal austerity, slashing spending in an effort to balance their budgets.

Critics warned from the beginning that austerity in the face of depression would only make that depression worse. But the “austerians” insisted that the reverse would happen. Why? Confidence! “Confidence-inspiring policies will foster and not hamper economic recovery,” declared Jean-Claude Trichet, the former president of the European Central Bank — a claim echoed by Republicans in Congress here. Or as I put it way back when, the idea was that the confidence fairy would come in and reward policy makers for their fiscal virtue.

The good news is that many influential people are finally admitting that the confidence fairy was a myth. The bad news is that despite this admission there seems to be little prospect of a near-term course change either in Europe or here in America, where we never fully embraced the doctrine, but have, nonetheless, had de facto austerity in the form of huge spending and employment cuts at the state and local level.

So, about that doctrine: appeals to the wonders of confidence are something Herbert Hoover would have found completely familiar — and faith in the confidence fairy has worked out about as well for modern Europe as it did for Hoover’s America. All around Europe’s periphery, from Spain to Latvia, austerity policies have produced Depression-level slumps and Depression-level unemployment; the confidence fairy is nowhere to be seen, not even in Britain, whose turn to austerity two years ago was greeted with loud hosannas by policy elites on both sides of the Atlantic.