In Germany, the poor performance in PISA 2000 stimulated a heated public debate and a strong policy response. The government reacted to the low average and remarkable disparities registered by the test, and spurred reforms led to a significant improvement in the country’s educational...

Numerous countries require teachers to assign comportment grades rating students' social and work behavior in the classroom. However, the impact of such policies on student outcomes remains unknown. We exploit the staggered introduction of comportment grading across German federal states to...