How far is the world away from ensuring that every child obtains the basic skills needed to be internationally competitive? And what would accomplishing this mean for world development? Based on the micro data of international and regional achievement tests, we map achievement onto a common...

Fertility rates have been falling persistently over the past 50 years in most developed countries around the world. Simultaneously, the trend in outward migration from poorer to richer countries has been steady. These two forces have contributed to declining population growth and in some...