Breakfast of Champions? The School Breakfast Program and the Nutrition of Children and Families

We use the National Health and Nutritional Examination Survey (NHANES) III to examine the effect of the availability of the school breakfast program (SBP). Our work builds on previous research in four ways: First, we develop a transparent difference-in-differences strategy to account for unobserved本研究采用全国健康与营养检查调查第三轮（National Health and Nutritional Examination Survey III，NHANES III）数据集，探究学校早餐项目（school breakfast program，SBP）的可及性所产生的效应。本研究从四个维度拓展了既往研究：其一，我们构建了一套透明清晰的双重差分（difference-in-differences）策略，以处理未观测到的