WASHINGTON, DC - DECEMBER 16: Federal Reserve Vice Chairman Janet Yellen attends the Federal Reserve centennial commemoration at the Federal Reserve
WASHINGTON, DC - DECEMBER 16: Federal Reserve Vice Chairman Janet Yellen attends the Federal Reserve centennial commemoration at the Federal Reserve building, on December 16, 2013 in Washington, DC. The Federal Reserve marked its one hundred anniversary with commemoration ceremony with former, current and future chairmans. (Photo by Mark Wilson/Getty Images) ( Mark Wilson )