GREThA (CNRS), University of Bordeaux, France.
SADAPT, INRAE, AgroPArisTech, Paris-Saclay University, France.
Soc Sci Med. 2021 Mar;272:113710. doi: 10.1016/j.socscimed.2021.113710. Epub 2021 Jan 20.
Income inequality and obesity are both widespread socioeconomic issues, particularly salient in middle-income countries. This article seeks to detect the relationship between local income inequality and excess weight in Mexico, using robust municipal income inequality measures generated through small area estimation method and instrumental variable multilevel estimations. Our results emphasize a negative impact of municipal income inequality on individual bodyweight, especially for women. We also explore the potential channels through which income inequality may decrease bodyweight. Three-stage least squares estimations highlight that the social capital pathway, the public policy pathway and the psychological pathway help to explain the negative effect of inequality on excess weight. Our results are fairly robust to alternative inequality measures and nutritional indicators.
收入不平等和肥胖都是广泛存在的社会经济问题，在中等收入国家尤为突出。本文旨在通过小区域估计方法和工具变量多层次估计，利用稳健的市级收入不平等衡量标准，来检测墨西哥地方收入不平等与超重之间的关系。我们的研究结果强调了市级收入不平等对个体体重的负面影响，特别是对女性而言。我们还探讨了收入不平等可能降低体重的潜在途径。三阶段最小二乘法估计突出表明，社会资本途径、公共政策途径和心理途径有助于解释不平等对超重的负面影响。我们的结果对于替代不平等衡量标准和营养指标具有相当的稳健性。
