Fredriksson, Peter; Öckert, Björn; Oosterbeek, Hessel - 2015
We study differential parental responses to variation in class size induced by a maximum class size rule in Swedish … schools. In response to an increase in class size: (i) only high-income parents help their children more with homework; (ii … substitutes, and help explain why the negative effect of class size on achievement in our data is concentrated among low …