On Nov 18 I argued it feels like we didn't really learn anything from the Great Depresssion because everyone seems to read into it what they want. If information doesn't change at least one mind, perhaps it is not even information.
I retract my claim. Tyler Cowen published a fantastic NY Times editorial describing what did and did not work in the New Deal response to the Great Depression. For the first time, an economist appears objective and open-minded when discussin the Great Depression. Congratulations Tyler!