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We forgot the middle class! Inequality underestimation in a changing Sub-Saharan Africa

Author

Listed:
  • F. Clementi

    (University of Macerata)

  • A. L. Dabalen

    (World Bank)

  • V. Molini

    (World Bank)

  • F. Schettino

    (University of Campania “Luigi Vanvitelli”)

Abstract

The creation of national middle classes and the changes in consumption patterns in many Sub-Saharan African (SSA) countries suggest reconsidering the way welfare and consequently inequality is typically measured. Using only consumption to measure welfare can lead to an important loss of information regarding the real welfare of the top 10–20% of the welfare distribution that is generally referred as “middle class” in these countries. This paper proposes a method capable of correcting the middle-class part of the consumption distribution using information coming from the income distribution of the same surveys. Results from 6 SSA countries indicate an increase of about 20% in the Gini index.

Suggested Citation

  • F. Clementi & A. L. Dabalen & V. Molini & F. Schettino, 2020. "We forgot the middle class! Inequality underestimation in a changing Sub-Saharan Africa," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 18(1), pages 45-70, March.
  • Handle: RePEc:spr:joecin:v:18:y:2020:i:1:d:10.1007_s10888-019-09432-8
    DOI: 10.1007/s10888-019-09432-8
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    as
    1. Vladimir Hlasny & Paolo Verme, 2018. "Top Incomes and the Measurement of Inequality in Egypt," The World Bank Economic Review, World Bank, vol. 32(2), pages 428-455.
    2. Stephen P. Jenkins, 1999. "Fitting Singh-Maddala and Dagum distributions by maximum likelihood," Stata Technical Bulletin, StataCorp LP, vol. 8(48).
    3. Atkinson, A. B. & Piketty, Thomas (ed.), 2010. "Top Incomes: A Global Perspective," OUP Catalogue, Oxford University Press, number 9780199286898.
    4. Tarozzi, Alessandro, 2007. "Calculating Comparable Statistics From Incomparable Surveys, With an Application to Poverty in India," Journal of Business & Economic Statistics, American Statistical Association, vol. 25, pages 314-336, July.
    5. Paul Andres Corral Rodas & Vasco Molini & Gbemisola Oseni, 2019. "No Condition is Permanent: Middle Class in Nigeria in the Last Decade," Journal of Development Studies, Taylor & Francis Journals, vol. 55(2), pages 294-310, February.
    6. Vasco Molini & Pierella Paci, 2015. "Poverty Reduction in Ghana—Progress and Challenges," World Bank Publications - Reports 22733, The World Bank Group.
    7. Anthony B. Atkinson & Thomas Piketty & Emmanuel Saez, 2011. "Top Incomes in the Long Run of History," Journal of Economic Literature, American Economic Association, vol. 49(1), pages 3-71, March.
    8. Singh, S K & Maddala, G S, 1976. "A Function for Size Distribution of Incomes," Econometrica, Econometric Society, vol. 44(5), pages 963-970, September.
    9. Néstor Gandelman, 2017. "Do the rich save more in Latin America?," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 15(1), pages 75-92, March.
    10. Luis López-Calva & Eduardo Ortiz-Juarez, 2014. "A vulnerability approach to the definition of the middle class," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 12(1), pages 23-47, March.
    11. McCarthy, Jonathan, 1995. "Imperfect insurance and differing propensities to consume across households," Journal of Monetary Economics, Elsevier, vol. 36(2), pages 301-327, November.
    12. Christian Kleiber, 2008. "A Guide to the Dagum Distributions," Economic Studies in Inequality, Social Exclusion, and Well-Being, in: Duangkamon Chotikapanich (ed.), Modeling Income Distributions and Lorenz Curves, chapter 6, pages 97-117, Springer.
    13. James B. McDonald, 2008. "Some Generalized Functions for the Size Distribution of Income," Economic Studies in Inequality, Social Exclusion, and Well-Being, in: Duangkamon Chotikapanich (ed.), Modeling Income Distributions and Lorenz Curves, chapter 3, pages 37-55, Springer.
    14. Claudia Sanhueza & Ricardo Mayer, 2011. "Top Incomes in Chile using 50 years of household surveys : 1957-2007," Estudios de Economia, University of Chile, Department of Economics, vol. 38(1 Year 20), pages 169-193, June.
    15. Schluter, Christian & Trede, Mark, 2002. "Tails of Lorenz curves," Journal of Econometrics, Elsevier, vol. 109(1), pages 151-166, July.
    16. Branko Milanovic & Shlomo Yitzhak, 2006. "Decomposing World Income Distribution: Does The World Have A Middle Class?," IBT Journal of Business Studies (JBS), Ilma University, Faculty of Management Science, vol. 2(2), pages 88-110.
    17. Milton Friedman, 1957. "Introduction to "A Theory of the Consumption Function"," NBER Chapters, in: A Theory of the Consumption Function, pages 1-6, National Bureau of Economic Research, Inc.
    18. Tullio Jappelli & Luigi Pistaferri, 2014. "Fiscal Policy and MPC Heterogeneity," American Economic Journal: Macroeconomics, American Economic Association, vol. 6(4), pages 107-136, October.
    19. Meyer, Bruce D. & Sullivan, James X., 2004. "The effects of welfare and tax reform: the material well-being of single mothers in the 1980s and 1990s," Journal of Public Economics, Elsevier, vol. 88(7-8), pages 1387-1420, July.
    20. David T. Geithman, 1974. "Middle Class Growth and Economic Development in Latin America," American Journal of Economics and Sociology, Wiley Blackwell, vol. 33(1), pages 45-58, January.
    21. Milton Friedman, 1957. "A Theory of the Consumption Function," NBER Books, National Bureau of Economic Research, Inc, number frie57-1, May.
    22. Golub, Stephen & Hayat, Faraz, 2014. "Employment, unemployment, and underemployment in Africa," WIDER Working Paper Series 014, World Institute for Development Economic Research (UNU-WIDER).
    23. Douglas Gollin & David Lagakos & Michael E. Waugh, 2014. "The Agricultural Productivity Gap," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 129(2), pages 939-993.
    24. Maddalena Honorati & Sara Johansson de Silva, 2016. "Expanding Job Opportunities in Ghana," World Bank Publications - Books, The World Bank Group, number 25208, December.
    25. Leigh, Andrew & van der Eng, Pierre, 2009. "Inequality in Indonesia: What can we learn from top incomes?," Journal of Public Economics, Elsevier, vol. 93(1-2), pages 209-212, February.
    26. James B. McDonald & Michael Ransom, 2008. "The Generalized Beta Distribution as a Model for the Distribution of Income: Estimation of Related Measures of Inequality," Economic Studies in Inequality, Social Exclusion, and Well-Being, in: Duangkamon Chotikapanich (ed.), Modeling Income Distributions and Lorenz Curves, chapter 8, pages 147-166, Springer.
    27. Anthony Atkinson & Thomas Piketty, 2010. "Top Incomes : A Global Perspective," PSE-Ecole d'économie de Paris (Postprint) halshs-00754875, HAL.
    28. Karen E. Dynan & Jonathan Skinner & Stephen P. Zeldes, 2004. "Do the Rich Save More?," Journal of Political Economy, University of Chicago Press, vol. 112(2), pages 397-444, April.
    29. Stephen P. Jenkins & Richard V. Burkhauser & Shuaizhang Feng & Jeff Larrimore, 2011. "Measuring inequality using censored data: a multiple‐imputation approach to estimation and inference," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 174(1), pages 63-81, January.
    30. World Bank, 2016. "Poverty Reduction in Nigeria in the Last Decade," World Bank Publications - Reports 25825, The World Bank Group.
    31. Francisco H.G. Ferreira & Julian Messina & Jamele Rigolini & Luis-Felipe López-Calva & Maria Ana Lugo & Renos Vakis, 2013. "Economic Mobility and the Rise of the Latin American Middle Class [La movilidad económica y el crecimiento de la clase media en América Latina]," World Bank Publications - Books, The World Bank Group, number 11858, December.
    32. Stephen Golub & Faraz Hayat, 2014. "Employment, Unemployment, and Underemployment in Africa," WIDER Working Paper Series wp-2014-014, World Institute for Development Economic Research (UNU-WIDER).
    33. repec:oup:qjecon:v:129:y:2014:i:2:p:939-993. is not listed on IDEAS
    34. Stephen P. Jenkins, 2009. "Distributionally‐Sensitive Inequality Indices And The Gb2 Income Distribution," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 55(2), pages 392-398, June.
    35. Vasco Molini & Pierella Paci, 2015. "Poverty Reduction in Ghana," World Bank Publications - Reports 22732, The World Bank Group.
    36. Maxim Pinkovskiy & Xavier Sala-i-Martin, 2014. "Africa is on time," Journal of Economic Growth, Springer, vol. 19(3), pages 311-338, September.
    37. Kleiber, Christian, 1996. "Dagum vs. Singh-Maddala income distributions," Economics Letters, Elsevier, vol. 53(3), pages 265-268, December.
    38. Claudio Quintano & Antonella D'Agostino, 2006. "Studying Inequality In Income Distribution Of Single‐Person Households In Four Developed Countries," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 52(4), pages 525-546, December.
    39. Guillermo Cruces & Peter Lanjouw & Leonardo Lucchetti & Elizaveta Perova & Renos Vakis & Mariana Viollaz, 2015. "Estimating poverty transitions using repeated cross-sections: a three-country validation exercise," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 13(2), pages 161-179, June.
    40. Angus Deaton & Salman Zaidi, 2002. "Guidelines for Constructing Consumption Aggregates for Welfare Analysis," World Bank Publications, The World Bank, number 14101, April.
    41. Di An & Roderick J. A. Little, 2007. "Multiple imputation: an alternative to top coding for statistical disclosure control," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 170(4), pages 923-940, October.
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    More about this item

    Keywords

    Middle class; Inequality; Sub-Saharan Africa; Consumption and income; Combined distribution;
    All these keywords.

    JEL classification:

    • C46 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Specific Distributions
    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement

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