We examine access to effective teachers for low-income students in 26 geographically dispersed school districts over a 5-year period. We measure teacher effectiveness using a value-added model that accounts for measurement error in prior test scores and peer effects. Differences between the average value added of teachers of high- and low-income…

We use a novel database of the preservice apprenticeships ("student teaching placements") of teachers in Washington State to investigate the relationship between mentor effectiveness (as measured by value added) and the future effectiveness of their mentees. We find a strong, positive relationship between the effectiveness of a teacher's…

Is a popular innovation for increasing human capital in the teaching profession--competitive college scholarships for teachers--effective? The authors show that one large and long-standing merit-based scholarship program (a) attracts teacher candidates who have high academic qualifications; (b) yields graduates who teach lower performing students,…