We exploit a nested school accountability reform to estimate the causal effect on teacher mobility, sorting, and student achievement. In 2003, lower-secondary schools in Oslo became accountable to the school district authority for student achievement. In 2005, information on school performance...

Starting in the 2016/17 academic year, high school students in Norway who missed more than 10 percent of the hours in a given course without a medical excuse could not receive a final grade. We examine the impacts of this policy on student absenteeism, the incidence of the no grade penalty and...