本文运用协整以及短期因果关系检验和脉冲响应分析,对我国地区GDP差距与存货投资间的长短期关系进行实证研究,发现:地区GDP差距的长期稳定性可由其与存货投资地区差异及存货投资在全国GDP中所占份额间的随机协整所度量,并且,这两个存货投资变量对地区收入差距分别存在显著的同向和反向短期影响。 This paper uses cointegration, short-term causality test and impulse response analysis to test the long-term relationship between regional GDP gap and inventory investment in China. It is found that the long-term stability of the regional GDP gap can be explained by the difference between regional GDP and inventory investment Which is measured by the stochastic cointegration among the share of the national GDP, and the two inventory investment variables have significant same-direction and reverse-direction short-term impacts on the regional income disparity respectively.