When has Krugman ever been correct on economics?
Evidently back in the day, he showed great insight about business siting decisions, for which work he was awarded the Nobel.
My attitude toward Krugman has always been that if he is making pronouncements about business siting decisions, his views should be taken into account and probably accepted, but if his is making pronouncements about anything else, one would be more likely correct if one took the opposite view.