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Poverty Growth in Scandinavian Countries: A Sen Multi-decomposition

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  • Stéphane Mussard
  • Maria Noel Pi Alperin

Abstract

We show in this paper that the growth rate of the Sen index is multi-decomposable, that is, decomposable simultaneously by groups and income sources. The multi-decomposition of the poverty growth yields respectively: the growth rate of the poverty incidence (poverty rate) decomposed by groups, the growth rate of the poverty depth (poverty gap ratios) decomposed by sources and groups, and the growth rate of inequality decomposed by sources and groups. We demonstrate that the multi-decomposition is not unique. It is mainly dependent on poverty lines defined on the space of income sources. An application to Scandinavian countries shows that poverty lines based on non-correlation between the sources of incomes imply serious underestimation of the contribution levels of the different components of the global poverty growth. The main contribution of our paper is to pay a particular attention to the poverty growth and its source components in order to avoid underestimation of poverty growth.

Suggested Citation

  • Stéphane Mussard & Maria Noel Pi Alperin, 2010. "Poverty Growth in Scandinavian Countries: A Sen Multi-decomposition," Working Papers 10-10, LAMETA, Universtiy of Montpellier, revised Sep 2010.
  • Handle: RePEc:lam:wpaper:10-10
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    References listed on IDEAS

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    1. Shorrocks, A F, 1980. "The Class of Additively Decomposable Inequality Measures," Econometrica, Econometric Society, vol. 48(3), pages 613-625, April.
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    5. Foster, James & Greer, Joel & Thorbecke, Erik, 1984. "A Class of Decomposable Poverty Measures," Econometrica, Econometric Society, vol. 52(3), pages 761-766, May.
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    8. St鰨ane Mussard & Luc Savard, 2012. "The Gini multi-decomposition and the role of Gini's transvariation: application to partial trade liberalization in the Philippines," Applied Economics, Taylor & Francis Journals, vol. 44(10), pages 1235-1249, April.
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    12. PI ALPERIN Maria Noel, 2010. "Comparing non-monetary deprivation and inequality levels in the EU countries," LISER Working Paper Series 2010-27, LISER.
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    Cited by:

    1. KYZYMA Iryna & FUSCO Alessio & VAN KERM Philippe, 2019. "Distributional change: Assessing the contribution of household income sources," LISER Working Paper Series 2019-13, LISER.
    2. Fusco, Alessio, 2015. "The relationship between income and housing deprivation: A longitudinal analysis," Economic Modelling, Elsevier, vol. 49(C), pages 137-143.
    3. Mussini, Mauro, 2013. "On decomposing inequality and poverty changes over time: A multi-dimensional decomposition," Economic Modelling, Elsevier, vol. 33(C), pages 8-18.

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    More about this item

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • I32 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Measurement and Analysis of Poverty

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