Testing for capital mobility: New evidence from a panel of G7 countries

In this paper, we test the savings-investment relationship for the G7 countries. Upon applying the Gregory and Hansen [Gregory, A.W., Hansen, B.E., 1996. Residual-based tests for cointegration in models with regime shifts, J. Econ. 70, 99-126] residual-based structural break test for cointegration for each of the G7 countries, we did not find any evidence of a cointegrating relationship between savings and investment. Extending the analysis to a panel framework, we could not establish any evidence of panel cointegration. Taken together, our findings suggest that capital in these G7 countries is highly mobile since no long-term relationship exists between savings and investment.