"The Subprime Mortgage Market". Ben S. Bernanke's speech at the Federal Reserve Bank of Chicago’s 43rd Annual Conference on Bank Structure and Competition in Chicago, Illinois, www.federalreserve.gov. May 17, 2007.
"'The Economy Fell off the Cliff'". Interview with Mathias Müller von Blumencron, Gregor Peter Schmitz and Gabor Steingart, www.spiegel.de. November 24, 2008.