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多层面产前干预对生命早期人力资本积累的影响

The Impacts of a Multifaceted Prenatal Intervention on Human Capital Accumulation in Early Life
American Economic Review · 2021 · Pedro Carneiro、Lucy Kraftman、Giacomo Mason、Lucie Moore、Imran Rasul、Molly Scott

中文摘要

我们评估了一项针对尼日利亚北部极端贫困家庭生命早期营养与福祉的干预。该干预使儿童的人体测量和健康结果产生了大幅且持续的改善,包括干预后4年发育迟缓降低8个百分点。这些影响部分由信息相关渠道驱动。然而,确定且数额可观的现金转移支付流也是关键。它们促使女性作出正向的劳动供给反应,并使她们能够对牲畜进行生产性投资。这些投资为儿童提供了富含蛋白质的饮食,并在现金转移支付到期后很长一段时间内产生更高的家庭收入流。

Abstract

We evaluate an intervention targeting early life nutrition and well-being for households in extreme poverty in Northern Nigeria. The intervention leads to large and sustained improvements in children’s anthropometric and health outcomes, including an 8 percent reduction in stunting 4 years, post-intervention. These impacts are partly driven by information-related channels. However, the certain and substantial flow of cash transfers is also key. They induce positive labor supply responses among women, and enables them to undertake productive investments in livestock. These provide protein rich diets for children, and generate higher household earnings streams long after the cash transfers expire. (JEL I12, I32, I38, J13, J16, J22, O12)
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