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Inequality: traditional drivers and the role of union power

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  • Florence Jaumotte
  • Carolina Osorio Buitron

Abstract

We examine the factors explaining the increase in gross and net income inequality in advanced economies since the 1980s. Our results support the view that globalization, technological progress, financial deregulation and lower top marginal tax rates are associated with higher inequality, and we find that the relation between the decline in union density and the rise in top decile income shares—a phenomenon which labour economists have long been discussing—is widespread across advanced economies. The influence of union density on top income shares appears to be causal, as evidenced by our instrumental variable estimates and the inclusion of potentially omitted variables.

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  • Florence Jaumotte & Carolina Osorio Buitron, 2020. "Inequality: traditional drivers and the role of union power," Oxford Economic Papers, Oxford University Press, vol. 72(1), pages 25-58.
    • Handle: RePEc:oup:oxecpp:v:72:y:2020:i:1:p:25-58.
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    2. Henry S Farber & Daniel Herbst & Ilyana Kuziemko & Suresh Naidu, 2021. "Unions and Inequality over the Twentieth Century: New Evidence from Survey Data," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 136(3), pages 1325-1385.
    3. Demetrio Guzzardi & Elisa Palagi & Tommaso Faccio & Andrea Roventini, 2023. "In search of lost time: An ensemble of policies to restore fiscal progressivity and address the climate challenge," LEM Papers Series 2023/28, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
    4. Iacono Roberto & Palagi Elisa, 2022. "Still the Lands of Equality? Heterogeneity of Income Composition in the Nordics, 1975–2016," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 22(2), pages 221-268, April.
    5. Demetrio Guzzardi & Elisa Palagi & Andrea Roventini & Alessandro Santoro, 2022. "Reconstructing Income Inequality in Italy: New Evidence and Tax Policy Implications from Distributional National Accounts," World Inequality Lab Working Papers halshs-03693201, HAL.
    6. Giovanni Dosi & Marcelo C. Pereira & Andrea Roventini & Maria Enrica Virgillito, 2024. "The political economy of complex evolving systems: the case of declining unionization and rising inequalities," LEM Papers Series 2024/13, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
    7. Caruso Raul & Antonella Biscione, 2022. "Militarization and Income Inequality in European Countries (2000–2017)," Peace Economics, Peace Science, and Public Policy, De Gruyter, vol. 28(3), pages 267-285, September.
    8. Palagi, Elisa & Napoletano, Mauro & Roventini, Andrea & Gaffard, Jean-Luc, 2023. "An agent-based model of trickle-up growth and income inequality," Economic Modelling, Elsevier, vol. 129(C).
    9. Óscar Afonso & Tiago Neves Sequeira & Marcelo Santos & Pedro Cunha Neves, 2023. "Global Firms, (de)unionization and Wage Inequality," Open Economies Review, Springer, vol. 34(5), pages 979-1013, November.
    10. Bruno Bises & Francesco Bloise & Antonio Scialà, 2024. "Labor share as an "automatic stabilizer" of income inequality," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 31(2), pages 511-532, April.

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    More about this item

    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • E25 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Aggregate Factor Income Distribution
    • J30 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - General
    • J50 - Labor and Demographic Economics - - Labor-Management Relations, Trade Unions, and Collective Bargaining - - - General

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