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A framework for testing the equality between the health concentration curve and the 45‐degree line

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  • Mohamad A. Khaled
  • Paul Makdissi
  • Rami V. Tabri
  • Myra Yazbeck

Abstract

The health concentration curve is the standard graphical tool to depict socioeconomic health inequality in the literature on health inequality. This paper shows that testing for the absence of socioeconomic health inequality is equivalent to testing if the conditional expectation of health on income is a constant function that is equal to average health status. In consequence, any test for parametric specification of a regression function can be used to test for the absence of socioeconomic health inequality (subject to regularity conditions). Furthermore, this paper illustrates how to test for this equality using a test for parametric regression functional form and applies it to health‐related behaviors from the National Health Survey 2014.

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  • Mohamad A. Khaled & Paul Makdissi & Rami V. Tabri & Myra Yazbeck, 2018. "A framework for testing the equality between the health concentration curve and the 45‐degree line," Health Economics, John Wiley & Sons, Ltd., vol. 27(5), pages 887-896, May.
    • Handle: RePEc:wly:hlthec:v:27:y:2018:i:5:p:887-896
    DOI: 10.1002/hec.3637
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    1. Wagstaff, Adam & Paci, Pierella & van Doorslaer, Eddy, 1991. "On the measurement of inequalities in health," Social Science & Medicine, Elsevier, vol. 33(5), pages 545-557, January.
    2. Wooldridge, Jeffrey M., 1992. "A Test for Functional Form Against Nonparametric Alternatives," Econometric Theory, Cambridge University Press, vol. 8(4), pages 452-475, December.
    3. Khaled, Mohamad A. & Makdissi, Paul & Yazbeck, Myra, 2018. "Income-related health transfers principles and orderings of joint distributions of income and health," Journal of Health Economics, Elsevier, vol. 57(C), pages 315-331.
    4. Makdissi, Paul & Yazbeck, Myra, 2014. "Measuring socioeconomic health inequalities in presence of multiple categorical information," Journal of Health Economics, Elsevier, vol. 34(C), pages 84-95.
    5. Owen O'Donnell & Eddy van Doorslaer & Adam Wagstaff & Magnus Lindelow, 2008. "Analyzing Health Equity Using Household Survey Data : A Guide to Techniques and Their Implementation," World Bank Publications - Books, The World Bank Group, number 6896, April.
    6. Erreygers, Guido & Clarke, Philip & Van Ourti, Tom, 2012. "“Mirror, mirror, on the wall, who in this land is fairest of all?”—Distributional sensitivity in the measurement of socioeconomic inequality of health," Journal of Health Economics, Elsevier, vol. 31(1), pages 257-270.
    7. Mosquera, Paola A. & San Sebastian, Miguel & Waenerlund, Anna-Karin & Ivarsson, Anneli & Weinehall, Lars & Gustafsson, Per E., 2016. "Income-related inequalities in cardiovascular disease from mid-life to old age in a Northern Swedish cohort: A decomposition analysis," Social Science & Medicine, Elsevier, vol. 149(C), pages 135-144.
    8. Randive, Bharat & San Sebastian, Miguel & De Costa, Ayesha & Lindholm, Lars, 2014. "Inequalities in institutional delivery uptake and maternal mortality reduction in the context of cash incentive program, Janani Suraksha Yojana: Results from nine states in India," Social Science & Medicine, Elsevier, vol. 123(C), pages 1-6.
    9. Adam Wagstaff, 2010. "Estimating health insurance impacts under unobserved heterogeneity: the case of Vietnam's health care fund for the poor," Health Economics, John Wiley & Sons, Ltd., vol. 19(2), pages 189-208, February.
    10. Russell Davidson & James MacKinnon, 2000. "Bootstrap tests: how many bootstraps?," Econometric Reviews, Taylor & Francis Journals, vol. 19(1), pages 55-68.
    11. Wagstaff, Adam, 2002. "Inequality aversion, health inequalities and health achievement," Journal of Health Economics, Elsevier, vol. 21(4), pages 627-641, July.
    12. Powell-Jackson, Timothy & Hanson, Kara, 2012. "Financial incentives for maternal health: Impact of a national programme in Nepal," Journal of Health Economics, Elsevier, vol. 31(1), pages 271-284.
    13. Liu, Zhenjun & Stengos, Thanasis & Li, Qi, 2000. "Nonparametric model check based on local polynomial fitting," Statistics & Probability Letters, Elsevier, vol. 48(4), pages 327-334, July.
    14. Marcel Bilger & Eliza J. Kruger & Eric A. Finkelstein, 2017. "Measuring Socioeconomic Inequality in Obesity: Looking Beyond the Obesity Threshold," Health Economics, John Wiley & Sons, Ltd., vol. 26(8), pages 1052-1066, August.
    15. Vincenzo Verardi & Nicolas Debarsy, 2012. "Robinson's square root of N consistent semiparametric regression estimator in Stata," Stata Journal, StataCorp LLC, vol. 12(4), pages 726-735, December.
    16. Magnus Lindelow, 2006. "Sometimes more equal than others: how health inequalities depend on the choice of welfare indicator," Health Economics, John Wiley & Sons, Ltd., vol. 15(3), pages 263-279, March.
    17. Van Doorslaer, Eddy & Clarke, Philip & Savage, Elizabeth & Hall, Jane, 2008. "Horizontal inequities in Australia's mixed public/private health care system," Health Policy, Elsevier, vol. 86(1), pages 97-108, April.
    18. Yatchew, Adonis John, 1992. "Nonparametric Regression Tests Based on Least Squares," Econometric Theory, Cambridge University Press, vol. 8(4), pages 435-451, December.
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    2. Mohamed Vadel Taleb El Hassen & Juan M. Cabases & Moulay Driss Zine Eddine El Idrissi & Samuel Mills, 2022. "Changes in Inequality in Use of Maternal Health Care Services: Evidence from Skilled Birth Attendance in Mauritania for the Period 2007–2015," IJERPH, MDPI, vol. 19(6), pages 1-17, March.
    3. Marieke J. Oskam & Milena Pavlova & Charles Hongoro & Wim Groot, 2021. "Socio-Economic Inequalities in Access to Drinking Water among Inhabitants of Informal Settlements in South Africa," IJERPH, MDPI, vol. 18(19), pages 1-19, October.

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    More about this item

    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • I10 - Health, Education, and Welfare - - Health - - - General

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