This article uses an extension of Mankiw, Romer and Weil's augmented Solow-Swan growth model to examine whether public investment has a distinct role as a determinant of economic growth. It considers both the predictions of the model in steady state and in transition to steady state. For the steady state model, there is no significant effect from public investment on the level of output per worker. Using standard ordinary least squares (OLS) methods for the transition model, it observes a significant contribution to economic growth from public investment. When instrumental variables methods are used, however, the associated standard errors are much larger and the contribution of public investment is statistically insignificant.
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Document Type: Research Article
University of Technology, Sydney, PO Box 123, Broadway NSW 2007, Australia
School of Economics, University of New South Wales, Sydney NSW 2052, Australia
Department of Economics, University of Victoria, Victoria BC V8W 2Y2, Canada
Publication date: 2003-03-01
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