Food for Thought?
通过加纳学校供餐计划的随机试验，发现该项目两年后适度提高了学生的数学和识字成绩，对女孩和弱势儿童效果更显著，并可能通过改善入学、认知和营养发挥作用。
There is limited experimental evidence on the effects of large-scale, government-led interventions on human capital in resource-constrained settings. We report results from a randomized trial of the government of Ghana’s school feeding. After two years, the program led to moderate average increases in math and literacy standardized scores among pupils in treatment communities, and to larger achievement gains for girls and disadvantaged children and regions. Improvements in child schooling, cognition, and nutrition constituted suggestive impact mechanisms, especially for educationally-disadvantaged groups. The program combined equitable human capital accumulation with social protection, contributing to the “learning for all” sustainable development agenda.