We analyse a rich dataset of Economics students at a UK university to identify causal effects of class absence on student performance, exploiting the random assignment of students and information on students’ class timetables to avoid selection problems. We use panel properties of the data to...

Evidence on the effectiveness of school inputs remains inconclusive, partly due to the challenge of identification as families sort themselves into school districts and resources are potentially allocated to compensate (or reinforce) differences in pupil abilities. Using variation in school...