Why has Growth slowed in Sub-Saharan Africa: A System GMM-IV Approach

Hassan Mahmud ()

MPRA Paper from University Library of Munich, Germany

Abstract: In this paper we estimated the traditional cross-country growth model and corrected for model endogeneity bias and country-specific hetereogeneity effects. Using the System-IV Generalized Method of Moments (GMM) approach, we identified the key factors that determine GDP per capita growth rate in a panel regression model of 100 countries. Parameter robustness tests was applied to the models which also included: Within Fixed E®ects; Pooled-Ordinary Least Square and Levels-IV GMM models, using the Extreme Bounds Analysis (EBA). We found that most of the estimated covariates that show significant coefficients in the regression model are actually fragile, except for initial income, institutions and real exchange rate over valuation. More importantly too, the results suggested that natural resource endowment, such as oil, may not have accounted for why some resource rich developing countries (e.g Nigeria) have grown slowly as is commonly argued in the literature.

Keywords: Fixed Effects Models; Economic Growth; Endogeneity; Method of Moments (search for similar items in EconPapers)
JEL-codes: C33 E13 (search for similar items in EconPapers)
Date: 2008-12-11
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Citations: View citations in EconPapers (2)

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