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Markups, Taxes, And Rising Inequality

Author

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  • Stéphane Auray

    (ENSAI - Ecole Nationale de la Statistique et de l'Analyse de l'Information [Bruz], CREST-THEMA - CREST - Centre de Recherche en Économie et Statistique - ENSAI - Ecole Nationale de la Statistique et de l'Analyse de l'Information [Bruz] - X - École polytechnique - ENSAE Paris - École Nationale de la Statistique et de l'Administration Économique - CNRS - Centre National de la Recherche Scientifique - THEMA - Théorie économique, modélisation et applications - CNRS - Centre National de la Recherche Scientifique - CY - CY Cergy Paris Université)

  • Aurélien Eyquem

    (UNIL - Université de Lausanne = University of Lausanne)

  • Bertrand Garbinti

    (CREST - Centre de Recherche en Économie et Statistique - ENSAI - Ecole Nationale de la Statistique et de l'Analyse de l'Information [Bruz] - X - École polytechnique - ENSAE Paris - École Nationale de la Statistique et de l'Administration Économique - CNRS - Centre National de la Recherche Scientifique, ENSAE - Ecole Nationale de la Statistique et de l'Analyse Economique - Ecole Nationale de la Statistique et de l'Analyse Economique)

  • Jonathan Goupille-Lebret

    (CNRS - Centre National de la Recherche Scientifique, GATE Lyon Saint-Étienne - Groupe d'Analyse et de Théorie Economique Lyon - Saint-Etienne - ENS de Lyon - École normale supérieure de Lyon - UL2 - Université Lumière - Lyon 2 - UJM - Université Jean Monnet - Saint-Étienne - CNRS - Centre National de la Recherche Scientifique, ENS de Lyon - École normale supérieure de Lyon)

Abstract

How to explain rising income and wealth inequality? We build an original heterogeneous- agent model with three key features: (i) an explicit link between firm's market power and top income shares, (ii) a granular representation of the tax and transfer system, and (iii) three assets with endogenous portfolio decisions. Using France as an illustration, we look at how changes in markups, taxes, factor productivity, and asset prices affect inequality dynamics over the 1984-2018 period. Rising markups account for the bulk of rising income inequality. Wealth inequality dynamics result mostly from changes in saving rate inequality but only in response to the exogenous changes in taxation and markups. Our results point to the critical importance of endogenous saving decisions in response to exogenous shocks as a key driver of wealth inequality.

Suggested Citation

  • Stéphane Auray & Aurélien Eyquem & Bertrand Garbinti & Jonathan Goupille-Lebret, 2022. "Markups, Taxes, And Rising Inequality," Working Papers halshs-03832267, HAL.
    • Handle: RePEc:hal:wpaper:halshs-03832267
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-03832267
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    References listed on IDEAS

    as
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    1. Piketty, Thomas & Bozio, Antoine & Garbinti, Bertrand & Goupille-Lebret, Jonathan & Guillot, Malka, 2020. "Predistribution vs. Redistribution: Evidence from France and the U.S," CEPR Discussion Papers 15415, C.E.P.R. Discussion Papers.

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    More about this item

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • E2 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment
    • H2 - Public Economics - - Taxation, Subsidies, and Revenue
    • O4 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity
    • O52 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - Europe

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