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The devil is in the details : growth, polarization, and poverty reduction in Africa in the past two decades

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  • Clementi,F.
  • Fabiani,M.
  • Molini,V.

Abstract

This paper investigates the distributional changes that limited pro-poor growth in the past two decades in Sub-Saharan Africa; these changes went undetected by standard inequality measures. By developing a new decomposition technique based on a nonparametric method -- the relative distribution -- the paper finds a clear distributional pattern affecting almost all the analyzed countries. Nineteen of 24 countries experienced a significant increase in polarization, particularly in the lower tail of the distribution, and this distributional change lowered the pro-poor impact of growth substantially. Without this change, poverty could have decreased an additional 5-6 percentage points during the past decade.

Suggested Citation

  • Clementi,F. & Fabiani,M. & Molini,V., 2018. "The devil is in the details : growth, polarization, and poverty reduction in Africa in the past two decades," Policy Research Working Paper Series 8494, The World Bank.
    • Handle: RePEc:wbk:wbrwps:8494
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    1. Joan Esteban & Carlos Gradín & Debraj Ray, 2007. "An Extension of a Measure of Polarization, with an application to the income distribution of five OECD countries," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 5(1), pages 1-19, April.
    2. Ambra Poggi & Jacques Silber, 2010. "On Polarization And Mobility: A Look At Polarization In The Wage–Career Profile In Italy," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 56(1), pages 123-140, March.
    3. Esteban, Joan & Ray, Debraj, 1994. "On the Measurement of Polarization," Econometrica, Econometric Society, vol. 62(4), pages 819-851, July.
    4. Joan Esteban & Debraj Ray, 2011. "Linking Conflict to Inequality and Polarization," American Economic Review, American Economic Association, vol. 101(4), pages 1345-1374, June.
    5. Michael C. Wolfson, 1997. "Divergent Inequalities: Theory And Empirical Results," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 43(4), pages 401-421, December.
    6. Wolfson, Michael C, 1994. "When Inequalities Diverge," American Economic Review, American Economic Association, vol. 84(2), pages 353-358, May.
    7. Wolfson, Michael, 1997. "Divergent Inequalities - Theory and Empirical Results (Revised Edition)," Analytical Studies Branch Research Paper Series 1997066e, Statistics Canada, Analytical Studies Branch.
    8. Anthony B. Atkinson & Andrea Brandolini, 2010. "On Analyzing the World Distribution of Income," The World Bank Economic Review, World Bank, vol. 24(1), pages 1-37, January.
    9. James Foster & Michael Wolfson, 2010. "Polarization and the decline of the middle class: Canada and the U.S," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 8(2), pages 247-273, June.
    10. Fabio Clementi & Francesco Schettino, 2013. "Income polarization in Brazil, 2001-2011: A distributional analysis using PNAD data," Economics Bulletin, AccessEcon, vol. 33(3), pages 1796-1815.
    11. Jean-Yves Duclos & Joan Esteban & Debraj Ray, 2004. "Polarization: Concepts, Measurement, Estimation," Econometrica, Econometric Society, vol. 72(6), pages 1737-1772, November.
    12. Riccardo Massari, 2009. "Is income becoming more polarized Italy? A closer look with a distributional approach," Working Papers 1, Doctoral School of Economics, Sapienza University of Rome.
    13. Ilaria Petrarca & Roberto Ricciuti, 2016. "Relative Income Distribution in Six European Countries," Research on Economic Inequality, in: Inequality after the 20th Century: Papers from the Sixth ECINEQ Meeting, volume 24, pages 361-386, Emerald Group Publishing Limited.
    14. Angus Deaton & Salman Zaidi, 2002. "Guidelines for Constructing Consumption Aggregates for Welfare Analysis," World Bank Publications, The World Bank, number 14101, April.
    15. Chiara Gigliarano & Karl Mosler, 2009. "Constructing indices of multivariate polarization," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 7(4), pages 435-460, December.
    16. Clementi, Fabio & Molini, Vasco & Schettino, Francesco, 2018. "All that Glitters is not Gold: Polarization Amid Poverty Reduction in Ghana," World Development, Elsevier, vol. 102(C), pages 275-291.
    17. L. R. Jain & Suresh D. Tendulkar, 1990. "Role of Growth and Distribution in the Observed Change in Headcount Ratio Measure of Poverty: A Decomposition Exercise for India," Indian Economic Review, Department of Economics, Delhi School of Economics, vol. 25(2), pages 165-205, July.
    18. X. Zhang & R. Kanbur, 2001. "What Difference Do Polarisation Measures Make? An Application to China," Journal of Development Studies, Taylor & Francis Journals, vol. 37(3), pages 85-98.
    19. Joan Esteban & Debraj Ray, 2008. "Polarization, Fractionalization and Conflict," Journal of Peace Research, Peace Research Institute Oslo, vol. 45(2), pages 163-182, March.
    20. F. Clementi & A. L. Dabalen & V. Molini & F. Schettino, 2017. "When the Centre Cannot Hold: Patterns of Polarization in Nigeria," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 63(4), pages 608-632, December.
    21. Zoya Nissanov, 2017. "Economic Growth and the Middle Class in an Economy in Transition," Economic Studies in Inequality, Social Exclusion, and Well-Being, Springer, number 978-3-319-51094-1, July.
    22. Riccardo Massari & Maria Pittau & Roberto Zelli, 2009. "A dwindling middle class? Italian evidence in the 2000s," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 7(4), pages 333-350, December.
    23. Fabio Clementi & Francesco Schettino, 2015. "Declining Inequality in Brazil in the 2000s: What is Hidden Behind?," Journal of International Development, John Wiley & Sons, Ltd., vol. 27(7), pages 929-952, October.
    24. Kathleen Beegle & Luc Christiaensen & Andrew Dabalen & Isis Gaddis, 2016. "Poverty in a Rising Africa," World Bank Publications - Books, The World Bank Group, number 22575.
    25. Vasco Molini & Pierella Paci, 2015. "Poverty Reduction in Ghana—Progress and Challenges," World Bank Publications - Reports 22733, The World Bank Group.
    26. Esteban, Joan & Ray, Debraj, 1999. "Conflict and Distribution," Journal of Economic Theory, Elsevier, vol. 87(2), pages 379-415, August.
    27. Zoya Nissanov, 2017. "On the Transition in Russia," Economic Studies in Inequality, Social Exclusion, and Well-Being, in: Economic Growth and the Middle Class in an Economy in Transition, chapter 0, pages 9-19, Springer.
    28. Zoya Nissanov & Maria Grazia Pittau, 2016. "Measuring changes in the Russian middle class between 1992 and 2008: a nonparametric distributional analysis," Empirical Economics, Springer, vol. 50(2), pages 503-530, March.
    29. Levy, Frank & Murnane, Richard J, 1992. "U.S. Earnings Levels and Earnings Inequality: A Review of Recent Trends and Proposed Explanations," Journal of Economic Literature, American Economic Association, vol. 30(3), pages 1333-1381, September.
    30. Fernando Borraz & Nicolás González & Máximo Rossi, 2013. "Polarization and the Middle Class in Uruguay," Latin American Journal of Economics-formerly Cuadernos de Economía, Instituto de Economía. Pontificia Universidad Católica de Chile., vol. 50(2), pages 289-326, November.
    31. repec:bla:revinw:v:43:y:1997:i:4:p:401-21 is not listed on IDEAS
    32. World Bank, 2016. "Poverty Reduction in Nigeria in the Last Decade," World Bank Publications - Reports 25825, The World Bank Group.
    33. Vasco Molini & Pierella Paci, 2015. "Poverty Reduction in Ghana," World Bank Publications - Reports 22732, The World Bank Group.
    34. Marta Reynal-Querol, 2002. "Ethnicity, Political Systems, and Civil Wars," Journal of Conflict Resolution, Peace Science Society (International), vol. 46(1), pages 29-54, February.
    35. Arthur Alderson & Jason Beckfield & Francois Nielsen, 2005. "Exactly How has Income Inequality Changed? Patterns of Distributional Change in Core Societies," LIS Working papers 422, LIS Cross-National Data Center in Luxembourg.
    36. Ma Casilda Lasso de la Vega & Ana Marta Urrutia, 2006. "An Alternative Formulation of the Esteban-Gradín-Ray Extended Measure of Polarization," Journal of Income Distribution, Ad libros publications inc., vol. 15(3-4), pages 42-54, December.
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