Silly question, right?
Well, during a conversation about the mismanagement of our nation today, a professor of mine essentially called me an idiot for blaming our nations adherence to Keynsian economic principles and a fiat currency. Now, while I didn't have the prescience of mind to continue the fight for long (nor the interest), I did specifically take notes on his comments;
"The nations that adopted Keynsian economy survived the great depression. Those that didn't died."
"Fiat was around for a hundred years before Keynes was born."