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Pareto improving taxes with externalities

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Abstract

We consider a pure exchange economy with consumption externalities in preferences. We study commodity taxes and lump-sum transfers schemes, which lead to equilibrium allocations where all individuals are strictly better off. We extend the result of Geanakoplos and Polemarchakis (2008) on the generic existence of Pareto improving policies with uniform taxes and equal transfers to general non-separable preferences, when the number of individuals is strictly smaller than the number of commodities. We also overcome this limitation by considering either uniform taxes with personalized lump-sum transfers, or personalized taxes with uniform lump-sum transfers. As in Geanakoplos and Polemarchakis (2008), we mainly use utility perturbations but we also provide a sufficient condition for ensuring the existence of Pareto improving policies without perturbing utilities

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  • Van-Quy Nguyen & Jean-Marc Bonnisseau & Elena L. Del Mercato, 2024. "Pareto improving taxes with externalities," Documents de travail du Centre d'Economie de la Sorbonne 24007, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
    • Handle: RePEc:mse:cesdoc:24007
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    1. John Geanakoplos & H M Polemchakis, 2008. "Pareto Improving Taxes," Levine's Working Paper Archive 122247000000002219, David K. Levine.
    2. Elena L. Mercato & Vincenzo Platino, 2017. "On the regularity of smooth production economies with externalities: competitive equilibrium à la Nash," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 63(1), pages 287-307, January.
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    7. Bonnisseau, Jean-Marc & del Mercato, Elena L. & Siconolfi, Paolo, 2023. "Existence of an equilibrium in arrowian markets for consumption externalities," Journal of Economic Theory, Elsevier, vol. 209(C).
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    More about this item

    Keywords

    Consumption externalities; commodity taxes; lump-sum transfers; Pareto improvement;
    All these keywords.

    JEL classification:

    • D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
    • D60 - Microeconomics - - Welfare Economics - - - General
    • D62 - Microeconomics - - Welfare Economics - - - Externalities

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