Geography
Why Do Some Countries Experience Brain Drain to Other Nations?
Quick fact
About 40% of all international migrants from developing countries have tertiary education, and sub-Saharan Africa loses roughly $4 billion annually in training costs due to brain drain.
Why this is interesting
You've probably heard of a 'brain drain'—but why do countries like India, Nigeria, or the Philippines lose many of their brightest doctors, engineers, and scientists to the United States or Europe?