八十年代以来美国国际投资头寸的变化及原因分析

Analysis International Investment Position of Unitde States Since 1980s

本文采用Granger检验证明了世界美元储备需求和对美国的直接投资需求是导致美国成为净债务国的原因 ,建立了美国经常项目差额、美元储备需求、直接投资流量与美国国际投资头寸净值之间的动态回归模型 。

This paper employs the Granger approach to investigate the change cause of Internation Investment Position of Unitde States Since 1980s,using yearly data.We test the cause and effect relationship beteen both worlds US dollar reserves and direct investment with the Net of International Investment Position of United States.