Yellen: Fed balance sheet to take years to shrink

``Federal Reserve Chair Janet Yellen says "it could take until the end of the decade" to shrink the Fed's record investment portfolio to more normal levels.. The Fed plans to end its latest round of buying Treasurys and mortgage bonds after its next meeting in October. It would then look to reduce its balance sheet once it begins raising a key short-term rate from its record low near zero.''