We exploit the crosscountry and time variation in the demographics and education structure of 11 European countries to study how cohort size has affected real earnings in Europe. When we pool the data of all countries, we find that cohort size has a negative and statistically significant effect...

We estimate peer effects for fourth graders in six European countries. The identification relies on variation across classes within schools. We argue that classes within primary schools are formed roughly randomly with respect to family background. Similar to previous studies, we find sizeable...