"In this context, monetary policy cannot be a panacea," Federal Reserve Chairman Ben Bernnake says. Jim Watson/AFP/Getty Images hide caption

itoggle caption Jim Watson/AFP/Getty Images

Contestants Ken Jennings, Brad Rutter and IBM's computer named Watson compete on Jeopardy! earlier this year. Carol Kaelson/Jeopardy Productions/AP hide caption

itoggle caption Carol Kaelson/Jeopardy Productions/AP

French Finance Minister Christine Lagarde is widely considered Europe's first choice for the now-vacant position of IMF chief. Jacques Brinon/AP hide caption

itoggle caption Jacques Brinon/AP

Visitors enjoy Pillar Point Beach in Half Moon Bay, Calif. Marcio Jose Sanchez/AP hide caption

itoggle caption Marcio Jose Sanchez/AP