There are so many books and papers on the economics of the Great Depression.
The bottom line is that the Roosevelt administration took the opportunity to inflict socialism on the US and allow his friends to grab staggering amounts of wealth.
Just like today.
Keynesian economics is AN EXCUSE FOR WHOLESALE THEFT, not a cure for a depression.
Hillary, Rahmbo, Romer and the others keep saying that “A crisis is a terrible thing to waste.” Now you know what they mean.
There are many excellent conservative economics works available, I agree. One which I forgot to mention (probably others have): Rothbard’s AMERICA’S GREAT DEPRESSION - available online, http://mises.org/rothbard/agd/contents.asp#contents
I also agree that Kenysian economics does allow for “legal” theft by the elite for the purpose of political control.