Measuring Socioeconomic Inequalities with Predicted Absolute Incomes Rather Than Wealth Quintiles: A Comparative Assessment Using Child Stunting Data from National Surveys

Günther Fink, C.G. Victora, Kenneth Harttgen, Sebastian Vollmer, L.P. Vidaletti and A.J.D. Barros

American Journal of Public Health, 2017, vol. 107, issue 4, 550-555

Abstract: Objectives. To compare the predictive power of synthetic absolute income measures with that of asset-based wealth quintiles in low-and middle-income countries (LMICs) using child stunting as an outcome. Methods. We pooled data from 239 nationally representative household surveys from LMICs and computed absolute incomes in US dollars based on households' asset rank as well as data on national consumption and inequality levels. We used multivariable regression models to compare the predictive power of the created income measure with the predictive power of existing asset indicator measures. Results. In cross-country analysis, log absolute income predicted 54.5% of stunting variation observed, compared with 20% of variation explained by wealth quintiles. For within-survey analysis, we also found absolute income gaps to be predictive of the gaps between stunting in the wealthiest and poorest households (P

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:10.2105/ajph.2017.303657_5

DOI: 10.2105/AJPH.2017.303657

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