Migration is seen as the product of desperate circumstances, but increasingly it is the byproduct of success—improved child survival followed by a booming young-adult population.

Elections throughout the world in 2012 brought several countries to a crossroads as they struggled with the eurozone debt crisis, the formation of post-Arab Spring governments, and recovery from econ…

Most countries still have laws that make it harder for women to work than men. This inequality shortchanges not only women but also entire economies.

Population growth and aging are fueling a spectacular rise in noncommunicable diseases, such as cancers and cardiovascular diseases, in poor countries that are ill-prepared to handle them.