WASHINGTON, DC - DECEMBER 16:  Federal Reserve Bank Chair Janet Yellen holds a news conference where she announced that the Fed will raise its benchmark interest rate for the first time since 2008 at the bank's Wilson Conference Center December 16, 2015 in Washington, DC. With unemployment at 5-percent and the economy showing signs of strength, the Fed raised the interest rate a quarter of a percentage point and many experts believe the interest rate on short-term loans could go as high as one percent by the end of 2016.  (Photo by Chip Somodevilla/Getty Images)