The U.S. Federal Reserve on Wednesday expanded stimulus measures, saying it would buy more securities to bolster the U.S. economy.
The central bank said it would purchase long-term Treasury securities into next year at a pace of 45 billion dollars per month and continue a programme announced in September to buy $40 billion in mortgage-backed securities.
The Fed also tied for the first time its benchmark interest rate directly to unemployment, indicating it would keep its benchmark interest rate at historic lows of 0 to 0.25 per cent as it seeks to
bolster economic growth until unemployment falls below 6.5 percent.
Unemployment stood at 7.7 percent in November.



