What or Who caused the financial crises of the 1920's?

The following story came to me via a source whose details I cannot divulge. If you've ever wondered about the origins of the financial collapse of the 1920's, here is one theory. Hope you enjoy it.

 "That man is the cause of the present economic depression--at least he is the one who started it in America."

Mr. Laramee, the chief engineer of the American Steel Corporation pointed to one of the shop foremen, an old Bohemian peasant type. I know for a certainty that my chin dropped and for several seconds I looked alternately at Mr. Laramee and the foreman.