documents that placing students into study groups with their friends may improve learning, especially for low-ability females. …

We study the effect of the world's largest school feeding program on children's learning outcomes. Staggered … that midday meals have a dramatic positive effect on learning achievement: children with up to 5 years of primary school … improvement including enrollment and nutrition-learning effects, heterogeneous responses by socio-economic status, complementary …

district-level data on the incidence of various types of crime with a nationally representative survey on learning achievement … the crime-learning gradient. We show that an increase in violent crime is associated with lower achievement in reading and … math, while non-violent crimes have no discernible correlation with learning outcomes. The effects are short-lived, driven …