Fredriksson, Peter; Öckert, Björn; Oosterbeek, Hessel - 2015
schools. In response to an increase in class size: (i) only high-income parents help their children more with homework; (ii …) all parents are more likely to move their child to another school; and (iii) only low-income children find their teachers … substitutes, and help explain why the negative effect of class size on achievement in our data is concentrated among low-income …