In his remarks Tuesday, the Fed chairman played down the risk of inflation, noting that oil prices and other commodity prices are off their peaks, and U.S. import prices show signs of decelerating.

• 贝南克在周二的讲话中对通膨风险一笔带过，指出石油等大宗商品价格回落，美国进口价格显示出减速的迹象。