近来,美国经济发出的信号错综复杂。美联储下一步对策仍未明朗。许多投资者原本预计美联储今年将推出QE3(第三次量化宽松政策),以维持低利率并刺激经济增长,但近期经济前景改善削弱了此类猜测。现在美国失业率走低,从2010年12月的9.4%降至2011年12月的8.5%,今年1月再次 Recently, the signals sent by the U.S. economy have been complicated. The Fed’s next move is still unclear. Many investors had expected the Fed to launch QE3 this year (the third quantitative easing policy) in order to maintain low interest rates and stimulate economic growth, but recent economic optimizations have weakened such speculation. Now that the unemployment rate in the United States has dropped from 9.4% in December 2010 to 8.5% in December 2011, again in January this year