This paper provides empirical evidence that there is no absolute convergence between the GDP per capita of the developing countries since 1950. Relying upon recent econometric methodologies (nonstationary long-memory models, wavelet models and time-varying factor representation models), we show...

In examining some big questions on African development, we provide evidence that dynamics of some development indicators could support both endogenous and neoclassical growth theories in the convergence debate. This paper investigates convergence in real per capita GDP and inequality adjusted...

Wealth inequalities both within and between nations has reached an extreme point and is continuing to increase (Collier P. The bottom billion: why the poorest countries are failing and what can be done about it. Oxford University Press, New York, 2007; Henneberg S, The wealth gaps. Farmington Hills:...

Data quality in the Penn World Tables varies systematically across countries that have different growth rates and at different stages of economic development, thus introducing measurement error correlated with variables of economic interest. We explore the seriousness of this problem with three...