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Title: Baby Booming Inequality? Demographic Change and Earnings Inequality in Norway, 1967-2000

Author(s): Ingvild Alm�s, Tarjei Havnes and Magne Mogstad

Publication Date: May 2011

Keyword(s): age structure, age-earnings profile, Gini coefficient and inequality trend

Programme Area(s): Public Economics

Abstract: In this paper, we demonstrate how age-adjusted inequality measures can be used to evaluate whether changes in inequality over time are due to changes in the age-structure. To this end, we use administrative data on earnings for every male Norwegian over the period 1967-2000. We find that the substantial rise in earnings inequality over the 1980s and into the early 1990s, is to some extent driven by the fact that the large baby boom cohorts are approaching the peak of the age-earnings profile. We further demonstrate that the impact of age-adjustments on the trend in inequality during the period 1993-2000 is highly sensitive to the method used: While the most widely used age-adjusted inequality measure indicates little change in inequality over this period, a new and improved age-adjusted measure suggest a decline in inequality.

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Bibliographic Reference

Alm�s, I, Havnes, T and Mogstad, M. 2011. 'Baby Booming Inequality? Demographic Change and Earnings Inequality in Norway, 1967-2000'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=8393