美国国内金融市场的次级抵押贷款危机早在2006年底就已经初露端倪,美国政府不断上调短期贷款利率导致房地产市场泡沫被捅破。2007年至2008年初,由次级抵押贷款抵押证券引起的次级抵押贷款危机,使包括华尔街五大投资银行在内的美国大型金融机构面临巨额损失或破产。由此次级抵押贷款危机开始向更广泛的区域蔓延,并逐渐威胁到美国的实体 The subprime mortgage crisis in the domestic financial markets in the United States has begun to emerge as early as the end of 2006. The U.S. government has continuously raised the short-term lending rate and the real estate bubble burst. From 2007 to early 2008, the subprime mortgage crisis caused by subprime mortgages left huge U.S. financial institutions, including the top five Wall Street investment banks, under huge loss or bankruptcy. As a result, the subprime mortgage crisis started to spread to the wider region and gradually threatened the U.S. entities