This African country has the continent's biggest population, accounting for nearly a fifth of the people across 54 countries.

This shift reflects a broader recognition that human capital--not just population size--drives long-term prosperity. Nigeria, Africa's most populous nation, exemplifies the dangers of unmanaged ...

Nigeria is a reasonable guess since, with 224 million people, it’s Africa’s most ... where I dip my shoe soles in disinfectant and put on a white lab coat. Obasanjo plucks a ripe tomato ...