Is Fixed Investment the Key to Economic Growth?
NBER Working Paper No. 4436 (Also Reprint No. r2065)
This paper examines shares of fixed capital formation in GOP and rates of economic growth for more than 100 countries over successive 5-year periods between 1965 and 1985 to determine the direction of causality between them. Simple regressions and multiple regressions including several standard determinants of growth, as well as a simple causality test, provide more evidence that increases in growth precede rises in rates of capital formation than that increases in capital formation precede increases in growth. High rates of fixed capital formation accompany rapid growth in per capita income, but we find no evidence that fixed investment is the only or main source of ignition for economic growth.
Document Object Identifier (DOI): 10.3386/w4436
Published: Quarterly Journal of Economics, vol CXI, Issue 1, Feb 1996, pp. 269-276. citation courtesy of
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