Federal Reserve Jackson Hole Economic Symposium

Andy Haldane, executive director of financial stability for the Bank of England, arrives for a session at the economic symposium sponsored by the Kansas City Federal Reserve Bank at the Jackson Lake Lodge in Moran, Wyoming, U.S., on Saturday, Sept. 1, 2012. Ben S. Bernanke, chairman of the U.S. Federal Reserve, with a little more than a year left in his second term, defended the effectiveness of unconventional monetary policies such as bond purchases and signaled he would soon deploy them again to attack unemployment. Photographer: Price Chambers/Bloomberg via Getty Images