当前,世界经济仍面临下行风险和不确定性,宽松的货币政策局限性日益凸显,美国等发达经济体主流经济学家和官员在此背景下呼吁扭转过去对财政政策的态度,重新认识财政政策与货币政策的作用,本文以2008年的次贷危机为切入点,对危机前后,西方经济学界财政政策观点进行总结,并探究当前西方经济学中财政政策新视点。 At present, the world economy is still facing downside risks and uncertainties. The limits of loose monetary policy have become increasingly prominent. In this context, the mainstream economists and officials in advanced economies such as the United States call for reversing their past attitudes toward fiscal policy and re-understanding the fiscal policy And the role of monetary policy, this article takes the subprime mortgage crisis in 2008 as an entry point, summarizes the fiscal policies of western economists before and after the crisis, and explores the new viewpoint of fiscal policy in western economics at present.