More than two of every five students who enrolled in college in 2007 failed to graduate by 2013. Peer tutoring services …

We examine college students’ interaction within classrooms and estimate peer effects on their academic performance. We … identification strategy based on students’ repeated interaction. Our findings show that a student’s performance in a class is …- acteristics. Also quantile regressions reveal that peer effects are significant among below-average students and among those at …

integration of migrant and native students. In contrast to previous studies, which mainly examine the effect of the share of … classroom. Our analysis is based on a comprehensive survey of 4th-grade students in German primary schools, which contains … detailed information on students' language and math scores, their social integration, as well as on sociodemographic and school …