The paper explores the effects of shadow economy on tax revenues, in the case of several African countries, based on a panel-model approach. The data-set covers the period 1999-2007. The main results reveal that the shadow economy has a significant and negative impact on tax revenues. In other...

Crimes and conflicts are seriously undermining African development. This article assesses the best governance tools in the fight against the scourges. The following findings are established. (1) Democracy, autocracy and voice & accountability have no significant negative correlations with crime....

This article re-examines the relationship alcohol and VIH/Aids, while resorting to another methodological approach that utilized by Fisher et al., (2007) and Kalichman et al. (2007). We confirm a direct relation of alcohol to the AIDS.

This study aims at testing the relation between intelligence and governance. It is based on African data. This study finds that countries with high-IQ populations enjoy good governance.