Adhvaryu Achyuta, Nyshadham Anant
University of Michigan Ross School of Business: 701 Tappan St. Ann Arbor, MI 48109;
University of Southern California Department of Economics,
Econ J (London). 2016 Jun;126(593):781-820. doi: 10.1111/ecoj.12186. Epub 2014 Dec 22.
Do parents invest more in higher quality children, or do they compensate for lower quality by giving more to children with lower endowments? We answer this question in the context of a large-scale iodine supplementation programme in Tanzania. We find that children with higher programme exposure were more likely to receive necessary vaccines and were breastfed for longer. Siblings of treated children were also more likely to be immunised. Fertility behavior and investments at the time of birth were unaffected.
父母是对质量更高的孩子投入更多,还是通过给予禀赋较低的孩子更多来弥补其较低的质量?我们在坦桑尼亚的一项大规模碘补充计划的背景下回答了这个问题。我们发现,该计划参与度较高的孩子更有可能接种必要的疫苗,并且母乳喂养时间更长。接受治疗的孩子的兄弟姐妹也更有可能接种疫苗。生育行为和出生时的投入未受影响。