This paper presents a detailed review of the main microeconomic and macroeconomic principles used to measure returns to education. We are also interested in major problems we encountered in empirically applying these models. The change in returns to higher learning in Sub-Saharan education is...

This study develops two-level hierarchical model that identifies factors that favor or hamper the use of Internet in Africa. We used data from a survey covering 17 African countries. Our results confirm that urbanization and the spread of Internet infrastructures play an important role in...