Steve Landsburg takes Paul Krugman to the woodshed in: Panglossian Economics:
Notice that Krugman goes beyond implicit insistence that everything today is perfectly hunky-dory; he says that it makes no sense to believe otherwise. In other words, he’s really really sure of this. I await his salute to the Tea Party for its role in bringing us to this state of Nirvana.
The Tea Party: just a switch to beat Ricardian theory into the head of a Nobel laureate.