If well managed, migration generates benefits for migrants, their countries of origin and the countries they settle in. For migrants, it can help them expand their skill sets and improve their standard of living. For destination countries, it can alleviate demographic pressures and foster...

The German practice of compelling weak students to repeat a class has come under heavy criticism recently. Many observers fear that this practice is, at best, useless or even counterproductive. However, little is known so far on the consequences of having to repeat a class, as compared to be...