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Baby Booming Inequality? Demographic Change and Inequality in Norway, 1967{2004

  • Almås, Ingvild


    (Dept. of Economics, Norwegian School of Economics and Business Administration)

  • Havnes, Tarjei

    (University of Oslo)

  • Mogstad, Magne


    (Statistics Norway)

We demonstrate how age-adjusted inequality measures can be used to evaluate whether changes in inequality over time are because of changes in the age structure. In particular, we explore the hypothesis that the substantial rise in earnings inequality since the early 1980s is driven by the large baby boom cohorts approaching the peak of the age{earnings pro le. Using administrative data on earnings for every Norwegian male over the period 1967{2004, we nd that the impact of age adjustments on the trend in inequality is highly sensitive to the method used:while the most widely used age-adjusted inequality measure indicates that the rise in inequality in the 1980s and 1990s is indeed driven partly by the baby boom, a new and improved age-adjusted measure indicates the opposite, namely that the rise in inequality was even larger than what the inequality measures unadjusted for age reveal.

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Paper provided by Department of Economics, Norwegian School of Economics in its series Discussion Paper Series in Economics with number 6/2010.

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Length: 16 pages
Date of creation: 07 May 2011
Date of revision:
Handle: RePEc:hhs:nhheco:2010_006
Contact details of provider: Postal: NHH, Department of Economics, Helleveien 30, N-5045 Bergen, Norway
Phone: +47 55 959 277
Fax: 5595 9100
Web page:

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  1. Ingvild Almas & Magne Mogstady, 2009. "Older or Wealthier?: The Impact of Age Adjustments on the Wealth Inequality Ranking of Countries," SOEPpapers on Multidisciplinary Panel Data Research 181, DIW Berlin, The German Socio-Economic Panel (SOEP).
  2. Erik Fjærli & Rolf Aaberge, 2000. "Tax Reforms, Dividend Policy and Trends in Income Inequality Empirical Evidence based on Norwegian Data," Discussion Papers 284, Statistics Norway, Research Department.
  3. Almås, Ingvild & Mogstad, Magne, 2010. "Older or Wealthier? The Impact of Age Adjustment on Cross-Sectional Inequality Measures," Discussion Paper Series in Economics 9/2010, Department of Economics, Norwegian School of Economics.
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