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Controversies about the Rise in American Inequality: A Survey

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  • Gordon, Robert J.
  • Dew-Becker, Ian
Abstract
This paper provides a comprehensive survey of seven aspects of rising inequality that are usually discussed separately: changes in labor?s share of income; inequality at the bottom of the income distribution, including labor mobility; skill-biased technical change; inequality among high incomes; consumption inequality; geographical inequality; and international differences in the income distribution, particularly at the top. We conclude that changes in labor?s share play no role in rising inequality of labor income; by one measure labor?s income share was almost the same in 2007 as in 1950. Within the bottom 90 percent as documented by CPS data, movements in the 50-10 ratio are consistent with a role of decreased union density for men and of a decrease in the real minimum wage for women, particularly in 1980-86. There is little evidence on the effects of imports, and an ambiguous literature on immigration which implies a small overall impact on the wages of the average native American, a significant downward effect on high-school dropouts, and potentially a large impact on previous immigrants working in occupations in which immigrants specialize.The literature on skill-biased technical change (SBTC) has been valuably enriched by a finer grid of skills, switching from a two-dimension to a three- or five-dimensional breakdown of skills. We endorse the three-way ?polarization? hypothesis that seems a plausible way of explaining differentials in wage changes and also in outsourcing. To explain increased skewness at the top, we introduce a three-way distinction between market-driven superstars where audience magnification allows a performance to reach one or ten million people, a second market-driven segment consisting of occupations like lawyers and investment bankers, and a third segment consisting of top corporate officers. Our review of the CEO debate places equal emphasis on the market in showering capital gains through stock options and an arbitrary management power hypothesis based on numerous non-market aspects of executive pay. Data on consumption inequality are too fragile to reach firm conclusions. We introduce two new issues, disparities in the growth of price indexes and also of life expectancy between the rich and the poor. We conclude with a perspective on international differences that blends institutional and market-driven explanations.

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  • Gordon, Robert J. & Dew-Becker, Ian, 2008. "Controversies about the Rise in American Inequality: A Survey," CEPR Discussion Papers 6817, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:6817
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    More about this item

    Keywords

    Ceo pay; Globalization; Immigration; Inequality; Labour unions; Minimum wage; Progressive taxation; Skill-biased technical change; Super stars;
    All these keywords.

    JEL classification:

    • D10 - Microeconomics - - Household Behavior - - - General
    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I3 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty
    • J10 - Labor and Demographic Economics - - Demographic Economics - - - General
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J51 - Labor and Demographic Economics - - Labor-Management Relations, Trade Unions, and Collective Bargaining - - - Trade Unions: Objectives, Structure, and Effects

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