Many studies examine the importance of teachers in students' learning, but few exist on the contribution of principals. We measure the effect of principals on gains in primary test scores in North Carolina and estimate the standard deviation of principals' value added to be 0.12 -0.17. We find...

Pop-Eleches and Urquiola (2013) apply a regression discontinuity to the Romanian secondary school system, and notably find that (a) students who go to a better school get higher scores on an exam used for university admission, (b) parents of students who get into a better school help their kids...