Krugman is dreaming big:
The quintessential economic sentence is supposed to be "There is no free lunch"; it says that there are limited resources, that to have more of one thing you must accept less of another, that there is no gain without pain. Depression economics, however, is the study of situations where there is a free lunch, if we can only figure out how to get our hands on it, because there are unemployed resources that could be put to work. The true scarcity in Keynes's worldand ourswas therefore not of resources, or even of virtue, but of understanding.
We will not achieve the understanding we need, however, unless we are willing to think clearly about our problems and to follow those thoughts wherever they lead. Some people say that our economic problems are structural, with no quick cure available; but I believe that the only important structural obstacles to world prosperity are the obsolete doctrines that clutter the minds of men.
To which, Krauthammer's column this morning is a useful riposte:
The ruling Democrats have a choice: Rescue this economy to return it to market control. Or use this crisis to seize the commanding heights of the economy for the greater social good. Note: The latter has already been tried. The results are filed under "History, ash heap of."