众所周知，美国市场经济从自由竞争到资本垄断，再到混合经济，已经历了100多年的发展历史。这期间，美国经济先后发生了五次企业兼并浪潮。而每一次企业兼并浪潮均无一例外地伴随着大公司、大集团的大规模的资产重组。大公司因而成为企业兼并的重要主体，而企业兼并则成为大公 As we all know, the US market economy has gone through more than 100 years of development history, from free competition to capital monopoly to mixed economy. During this period, the U.S. economy has seen five waves of corporate mergers. Every wave of corporate mergers and acquisitions is accompanied by a large-scale reorganization of assets by large companies and large groups. Large companies thus become important players in corporate mergers, and corporate mergers become