Analysis Group, Inc., 111 Huntington Avenue, 14th Floor, Boston 02199, USA.
J Health Econ. 2019 Jan;63:52-63. doi: 10.1016/j.jhealeco.2018.10.007. Epub 2018 Nov 5.
I study the causal impact of neighborhoods on body mass index (BMI). Through exploiting variation in the number of years individuals have lived in their neighborhood, using a data set from California, I examine if there exist causal effects of exposure to neighborhoods with high potential effects on one's BMI. The identifying assumption is that there are no unobserved individual level characteristics correlated with both BMI and moving, after controlling for observables. I find evidence that suggests that neighborhoods do not have a causal impact on BMI.
我研究了社区对体重指数（BMI）的因果影响。通过利用个体在社区居住年限的变化，我使用了来自加利福尼亚的数据，考察了是否存在因暴露于对 BMI 有潜在影响的社区而导致 BMI 变化的因果效应。识别假设是，在控制可观察因素后，不存在与 BMI 和迁移都相关的未被观测到的个体特征。我发现的证据表明，社区对 BMI 没有因果影响。
