Higher School of Economics Research Paper No. WP BRP 30/EDU/2015 Oleg Poldin National Research University Higher School of Economics Tania P. Simoes Universidade Estadual de Campinas (UNICAMP) Marcelo Knobel Universidade Estadual de Campinas (UNICAMP) Maria Yudkevich National Research University Higher School of Economics (Moscow) Abstract: Social interactions with peers during learning have a significant impact …