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Does Size Matter? The Impact of Changes in Household Structure on Income Distribution in Germany

Author

Listed:
  • Andreas Peichl
  • Nico Pestel
  • Hilmar Schneider
Abstract
In Germany, two observations can be made over the past 20 years: First, income inequality has been constantly increasing while, second, the average household size has been declining dramatically. The analysis of income distribution relies on equivalence-weighted incomes which take into account household size. Therefore, there is an obvious link between these two developments. The aim of the paper is to quantify how the trend towards smaller households has influenced the change in income distribution. In order to do so, we are using a decomposition of changes in inequality measures over time allowing for a separation between wage and demographic effects respectively. We propose similar decompositions for the change in poverty and richness as well and compare them with results that were obtained by a re-weighting procedure. Our results show that the income gap would also have increased without the demographic trend. But its level would be lower than it actually is. In addition, the demographic effect turns out to be larger for incomes before tax and benefits.

Suggested Citation

  • Andreas Peichl & Nico Pestel & Hilmar Schneider, 2010. "Does Size Matter? The Impact of Changes in Household Structure on Income Distribution in Germany," SOEPpapers on Multidisciplinary Panel Data Research 280, DIW Berlin, The German Socio-Economic Panel (SOEP).
    • Handle: RePEc:diw:diwsop:diw_sp280
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    income distribution; demography; household size; decomposition; Germany;
    All these keywords.

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • J11 - Labor and Demographic Economics - - Demographic Economics - - - Demographic Trends, Macroeconomic Effects, and Forecasts

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