This study examines the gendered effects of early and sustained exposure to high-performing peers on female educational trajectories. Exploiting random allocation to classrooms within middle schools, we measure the effect of male and female high performers on girls' high school placement...

A growing body of evidence suggests that people exhibit large biases when processing information about themselves, but less is known about the underlying inference process. This paper studies belief updating patterns regarding academic ability in a large sample of students transitioning from...

A growing body of evidence suggests that people exhibit large biases when processing information about themselves, but less is known about the underlying inference process. This paper studies belief updating patterns regarding academic ability in a large sample of students transitioning from...

This article relies on a large-scale field experiment in Mexico to measure the effects of two ability-grouping models (tracking and heterogeneous/bimodal groups) on student learning outcomes during middle school. Both strategies yielded an average learning gain of 0.08 of a standard deviation....