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		| Tsangyao  Chang, Ching-Chun  Wei and Chien-Chung  Nieh | 
	
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		| ''Is Per Capita Real GDP Stationary? Evidence from Selected African Countries Based on More Powerful Nonlinear (Logistic) Unit Root Tests'' | 
	
		| ( 2005, Vol. 3 No.24 ) | 
	
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		| In this study we use a more powerful nonlinear (logistic) unit root test advanced by Leybourne et al. (1998) to investigate the time-series propertities of per capita real GDP for 26 selected African countries for the period 1960-2000.  We strongly reject the null of unit root process for over one-third the countries.  These empirical results have important policy implications for selected African countries. | 
	
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		| Keywords: | 
	
		| JEL: C2 - Single Equation Models; Single Variables: General 
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		| | Manuscript Received : May 04 2005 |  | Manuscript Accepted : May 04 2005 | 
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