We examine the measurement and prediction of worker productivity using a sample of teachers and school principals. We find that principals' evaluations are positively associated with teachers' estimated contributions to students' test scores (value-added), and are better predictors of teacher...

We analyze the impact of both pre-service preparation and in-service formal and informal training on the ability of teachers to promote academic achievement among students with disabilities. We employ rich student-level longitudinal data from Florida over a five-year period to estimate...

While the rise in childhood obesity is clear, the policy rami cations are not. School nutrition programs such as the School Breakfast Program (SBP) have come under much scrutiny. However, the lack of experimental evidence, combined with non-random selection into these programs, makes...