" After the stock market crash, some New York editors suggested that hearings be held: what had really caused the Depression? They were held in Washington. In retrospect, they make the finest comic reading. The leading industrialists and bankers testified. They hadn’t the foggiest notion what had gone bad. You read a transcript of that record today with amazement: that they could be so unaware. This was their business, yet they didn’t understand the operation of the economy. The only good witnesses were the college professors, who enjoyed a bad reputation in those years. No professor was supposed to know anything practical about the economy. "

― Studs Terkel , Hard Times: An Oral History of the Great Depression