Androushchak, Gregory; Poldin, Oleg; Yudkevich, Maria - National Research University Higher School of Economics - 2012
groups. The study uses administrative data on undergraduate students at a large selective university in Russia. The presence … of high-ability classmates has a positive effect on individual academic performance, and students at the top of the … ability distribution derive the greatest benefit from their presence. An increase in the proportion of less able students has …