增加基础设施投资力度是帮助一国摆脱长期性停滞的最重要举措之一。全球金融危机的爆发深刻地改变了世界经济增长的格局。世界经济的年均增速从2000~2007年的4.5%;下降至2008~2014年的3.3%。据IMF预测,2015年世界经济增速仅为3.1%。针对这种局面,美国经济学家萨默斯提出了“长期性停滞”的概念。 Increasing the investment in infrastructure is one of the most important measures to help a country get rid of its long-term stagnation. The outbreak of the global financial crisis has profoundly changed the pattern of world economic growth. The average annual growth rate of the world economy dropped from 4.5% in 2000-2007 to 3.3% in 2008-2014. According to the IMF’s forecast, the world economic growth in 2015 was only 3.1%. In response to this situation, the United States economist Summers put forward the concept of “long-term stagnation.”