Impact evaluation of school feeding programmes in Lao People's Democratic Republic
Impact evaluation of school feeding programmes in Lao People's Democratic Republic
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DOI：
10.1080/19439342.2011.634511
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发表时间：
2011-01-01
影响因子：
0.9
通讯作者：
Friedman, Jed
中科院分区：
文献类型：
--
作者：
Buttenheim, Alison;Alderman, Harold;Friedman, Jed
尽管学校供餐方案很受欢迎并得到广泛实施，但其对学校参与率和营养状况的影响的证据喜忧参半。在这项研究中，我们评估了老挝人民民主共和国三个区的供餐方案。喂养方式包括现场喂养、带回家的口粮和综合方式。在地区一级实施干预地点和有选择地接受干预对评估工作提出了相当大的挑战。为了解决这些问题，我们使用带有倾向分数加权的差值估计器来构建可信的反事实。我们发现，学校供餐增加了入学率或改善了营养状况的证据很少。给出了几个稳健性检验和对无效发现的可能解释。
Despite the popularity and widespread implementation of school feeding programmes, evidence of their impact on school participation and nutritional status is mixed. In this study we evaluate feeding programmes in three districts of the Lao People's Democratic Republic. Feeding modalities included on-site feeding, take-home rations, and a combined modality. District-level implementation of the intervention sites and selective take-up presented considerable evaluation challenges. To address these, we use difference-in-difference estimators with propensity-score weighting to construct plausible counterfactuals. We find minimal evidence that school feeding increased enrolment or improved nutritional status. Several robustness checks and possible explanations for null findings are presented.