High school students from non-elite backgrounds are less likely to have peers with elite-educated parents than their elite counterparts. This difference in social capital is a key driver of the high intergenerational persistence in elite education. We identify a positive elite peer effect on enrollment in elite programs and labor market earnings, then disentangle underlying mechanisms. Exploiting a lottery in assessment, a causal mediation analysis shows the overall positive peer effect reflects a positive effect on application behavior (conditional on GPA). When considering income mobility, we find that further mixing between high school elite and non-elite students could improve mobility.

Why the Apple Doesn't Fall Far: Understanding Intergenerational Transmission of Human Capital by Sandra E. Black, Paul J. Devereux and Kjell G. Salvanes. Published in volume 95, issue 1, pages 437-449 of American Economic Review, March 2005

We exploit a unique data set, combining rich experimental data with high-quality administrative data, to study dropout from the college track in Norway, and why boys are more likely to drop out. The paper provides three main findings. First, we show that family background and personal characteristics contribute to explain dropout. Second, we show that the gender difference in dropout rates appears both when the adolescents select into the college track and after they have started. Third, we show that different processes guide the choices of the boys and the girls of whether to drop out from the college track.