“…Recent empirical studies have argued that academic peer effects could be largely driven by three types of mechanisms: i) student effort (e.g., Kang et al, 2007;Brunello, De Paola and Scoppa, 2010), ii) group dynamics (e.g., Lavy and Schlosser, 2011;Lavy, Paserman and Schlosser, 2012;Bursztyn and Jensen, 2015;Brady, Insler and Rahman, 2017;Feld and Zölitz, 2017), and iii) teacher effort or school resources (e.g., Duflo, Dupas and Kremer, 2011;Chetty et al, 2011;Hoekstra, Mouganie and Wang, 2018;Todd and Wolpin, 2018). Table 1 lists several of these studies, classifying them by the type of mechanisms they explore.…”