Exploiting Externalities to Estimate the Long-Term Effects of Early Childhood Deworming
Exploiting Externalities to Estimate the Long-Term Effects of Early Childhood Deworming
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DOI：
10.1257/app.20160183
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发表时间：
2018-07-01
影响因子：
6.2
通讯作者：
Ozier, Owen
中科院分区：
文献类型：
--
作者：
Ozier, Owen
我调查了肯尼亚以学校为基础的驱虫干预是否对幼儿产生了长期影响。我利用该计划的正外部性来评估对未直接接受治疗的年幼儿童的影响。干预十年后，我发现，当社区接受以学校为基础的大规模驱虫治疗时，对一岁以下儿童的认知影响很大--相当于0.5到0.8年的就学时间。我发现对儿童身高或发育迟缓没有影响。我还估计了大一点的兄弟姐妹直接接受治疗的儿童的影响；在这个亚群中，认知影响几乎是这一群体的两倍。
I investigate whether a school-based deworming intervention in Kenya had long-term effects on young children. I exploit positive externalities from the program to estimate impacts on younger children who were not directly treated. Ten years after the intervention, I find large cognitive effects-comparable to between 0.5 and 0.8 years of schooling-for children who were less than one year old when their communities received school-based mass deworming treatment. I find no effect on child height or stunting. I also estimate effects among children whose older siblings received treatment directly; in this subpopulation, cognition effects are nearly twice as large.