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Quelques réformes progressives des taxes à la consommation

Author

Listed:
  • David Leung
  • Markus Poschke

Abstract

We study the effects of tax reforms in a heterogeneous agent overlapping generations life cycle model with idiosyncratic risk in capital and labour income and a rich tax system. The model replicates empirical joint distributions of income, wealth and tax payments well. In an economy with highly progressive income taxes, a revenue-neutral shift of the tax burden from income to consumption taxes increases saving and output, while also reducing inequality. It particularly benefits those with low wealth relative to income. It tends to harm retirees, who have high wealth relative to income. In contrast, an increase in the progressivity of income taxes also reduces inequality, but implies lower saving and output. Nous étudions les effets de plusieurs réformes fiscales à l’aide d’un modèle de cycle de vie avec générations chevauchantes. Le modèle décrit des agents hétérogènes qui confrontent des risques idiosyncratiques pour leurs revenus du travail et du capital, dans un environnement avec un système fiscal progressif complexe. Le modèle réplique fidèlement les distributions empiriques conjointes du revenu, de la richesse et des paiements de taxes et d’impôts. Dans ce contexte, un déplacement du fardeau fiscal à effet neutre sur les revenus publics vers les taxes à la consommation augmente l’épargne et la production tout en réduisant les inégalités. Cette politique est avantageuse particulièrement pour les individus disposant d’un faible niveau de richesse par rapport à leur revenu, mais tend à nuire aux personnes retraitées en raison du niveau élevé de leur richesse par rapport à leurs revenus. En revanche, une hausse de la progressivité de l’impôt sur le revenu des particuliers réduit aussi les inégalités, mais génère une épargne et une production plus faible.

Suggested Citation

  • David Leung & Markus Poschke, 2023. "Quelques réformes progressives des taxes à la consommation," CIRANO Project Reports 2023rp-06, CIRANO.
  • Handle: RePEc:cir:cirpro:2023rp-06
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    File URL: https://cirano.qc.ca/files/publications/2023RP-06.pdf
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