I think in the U.S. and in most of the world the public understanding of economics is abysmal. But it’s one thing not to understand something. I don’t understand brain surgery. It’s another to want to form policies on things on which you are ignorant. I hear the wonderful phrase “I want to make a difference” when it comes to policy. I would be horrified if I wanted to make a difference in brain surgery. The only difference is more people would die on the operating table. The only encouraging thing about public reaction to the crisis is that going by polls citizens seem to have more misgivings about some of these policies than politicians or the media. Still, though there have been studies that indicate the New Deal prolonged the Great Depression by years, what is also clear is it was enormously popular. FDR was elected four straight times, and more than once without ever having brought unemployment down to single digits. An economic disaster does not necessarily mean a political disaster. If we could raise the average level of understanding of economics to what Alfred Marshall had in 1890, the vast majority of politicians would be voted out of office.