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How Much are the Poor Losing from Tax Competition: The Welfare Effects of Fiscal Dumping in Europe

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  • Mathilde Munoz

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École des Ponts ParisTech - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, WIL - World Inequality Lab)

Abstract

This paper quantifies the welfare effects of tax competition in an union where individuals can respond to taxation through migration. I derive the optimal linear and non-linear tax and transfer schedules in a free mobility union composed by symmetric countries that can either compete or set a federal tax rate. I show how in the competition union, the mobility-responses to taxation affect the redistributive capacity of governments through several mechanisms. I then use empirical earnings' distribution and estimated migration elasticities to implement numerical calibrations and simulations. I use my formulas to quantify the welfare gains and losses of being in a tax competition union instead of a federal union, and show how these welfare effects vary along the earnings distribution. I show that the bottom fifty percent always loses from tax competition, and that being in a competition union rather than in a federal union could decrease poorer individuals welfare up to -20 percent.

Suggested Citation

  • Mathilde Munoz, 2019. "How Much are the Poor Losing from Tax Competition: The Welfare Effects of Fiscal Dumping in Europe," PSE Working Papers hal-02876988, HAL.
    • Handle: RePEc:hal:psewpa:hal-02876988
    Note: View the original document on HAL open archive server: https://pjse.hal.science/hal-02876988
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    References listed on IDEAS

    as
    1. Martinez, Isabel Z., 2016. "Beggar-Thy-Neighbour Tax Cuts: Mobility after a Local Income and Wealth Tax Reform in Switzerland," VfS Annual Conference 2016 (Augsburg): Demographic Change 145643, Verein für Socialpolitik / German Economic Association.
    2. Henrik Kleven & Camille Landais & Mathilde Muñoz & Stefanie Stantcheva, 2020. "Taxation and Migration: Evidence and Policy Implications," Journal of Economic Perspectives, American Economic Association, vol. 34(2), pages 119-142, Spring.
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    Keywords

    Tax Competition; Fiscal Dumping; Europe; Taxation rate; Migration; Migration elasticities; International taxation;
    All these keywords.

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