Nonlinearity and the Unit Root Hypothesis for African Per Capita Real GDP

Sakiru Solarin and Emmanuel Anoruo

International Economic Journal, 2015, vol. 29, issue 4, 617-630

Abstract: Once described as an epic center of growth tragedy, African nations have lately achieved relatively rapid growth rates, which have raised hopes that the continent is finally on the path to economic convergence with other emerging economies. However, there is a need to establish whether stabilization policies for the purpose of enhancing the GDP are effective in African countries. One of the means of examining the effectiveness of these policies is through the investigation of the unit root properties of per capita GDP in the continent. This study aims to add to the existing papers on GDP in African countries by investigating the non-stationarity of per capita GDP in 52 African countries, while using a newly proposed nonlinear unit root test. The results suggest that per capita GDP follows the non-stationarity process in half of the entire sample.

Date: 2015
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DOI: 10.1080/10168737.2015.1081615

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