Long Term Trends in Fair and Unfair Inequality in the United States

Andrew Hussey and Michael Jetter

No 8500, IZA Discussion Papers from Institute of Labor Economics (IZA)

Abstract: This paper analyzes the microeconomic sources of wage inequality in the United States from 1967-2012. Decomposing inequality into factors categorized by degree of personal responsibility, we find that education is able to explain more than twice as much of inequality today as 45 years ago. However, neither hours worked nor education, industry, marital status, or geographical location is able to explain the observed general rise in inequality. In fact, "unfair" inequality has risen faster than "fair" inequality, regardless of the set of variables chosen as fair sources of inequality (resulting from responsibility factors). We also examine inequalities within gender and racial groups and across U.S. states. Several noteworthy findings emerge. Wage inequality among males used to be lower than among females until 1990, but today the opposite is true. We also find several occasions where the distinction between the raw Gini and the Gini adjusted for certain characteristics produces different conclusions. For instance, raw inequality among black females decreased since 1969, but if we acknowledge differences resulting from hours worked and educational outcomes as "fair" inequalities, the remaining inequality measure has increased. We also find that there is substantial geographic heterogeneity in trends of unfair and overall inequality.

Keywords: unfair inequality; Gini coefficient; income inequality (search for similar items in EconPapers)
JEL-codes: D31 D63 J31 (search for similar items in EconPapers)
Pages: 36 pages
Date: 2014-09
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Forthcoming - published in: Applied Economics, 2016, 49(12): 1147-1163

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Journal Article: Long term trends in fair and unfair inequality in the United States (2017)
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