JACKSON HOLE, Wyo. – Chairman Ben Bernanke made clear Friday that the Federal Reserve will do more to boost the economy because of high U.S. unemployment and an economic recovery that remains "far from satisfactory."

He also argued that the Fed's moves so far to keep interest rates at record lows and encourage borrowing and spending have helped bolster the economy.

Bernanke stopped short of committing the Fed to any specific move, such as another round of bond purchases to lower long-term rates. But in a speech at an annual Fed conference in Jackson Hole, Wyo., Bernanke said that even with rates at super-lows, the Fed can do more.