近年来的情况表明,美国自20世纪90年代长期扩展积累起来的、为繁荣所掩盖的一系列结构性问题已逐渐暴露,严重制约着经济的周期进程。如,虚拟经济与实际经济的严重脱节、实际经济中的投资过度、购并狂潮产生的并购泡沫、金融过度带来的金融市场混乱无序和违规操作等问题,都需要假以时日来消化。并且,原有的问题 Recent years have shown that a series of structural problems that the United States has masked for its prosperity since its long-term expansion in the 1990s have gradually been exposed, seriously restricting the cycle of the economy. For example, the serious disconnect between virtual economy and real economy, over-investment in the real economy, mergers and acquisitions bubble caused by mergers and acquisitions, disorderly financial markets caused by overcapacity and illegal operations all require time to digest. And, the original problem