今年以来,世界经济出现了许多新的风险因素,美国次贷危机继续恶化,引发了国际金融市场动荡,波及欧洲和其他国家,影响了整个世界经济的基本面。4月9日,IMF将2008年全球增长的预测从4.8%下调到3.7%,甚至认为全球性衰退的概率达到了25%。将美国经济2008年增长率预测从1.5%降至 Since the beginning of this year, there have been many new risk factors in the world economy. The subprime mortgage crisis in the United States has continued to deteriorate, causing turmoil in international financial markets, affecting Europe and other countries and affecting the fundamentals of the world economy. On April 9, the IMF cut its global growth forecast for 2008 from 3.7% to 3.7%, even to a 25% chance of a global recession. The United States economy in 2008 growth rate forecast from 1.5% to