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Aggregate spillovers magnify the welfare benefits of tax reform

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  • Todd A. Knoop
  • Kenneth J. Matheny

Abstract

Relatively small degrees of aggregate increasing returns to scale ubstantially magnify both welfare benefits and income effects associated with tax reform. External returns to scale of 10 per cent increase the welfare benefits of tax reform by roughly one‐third and increase changes in income by significantly more than a model characterized by constant returns to scale. Aggregate spillovers of 20 per cent increase welfare benefits by roughly three‐fourths. Aggregate spillovers significantly reduce tax revenue‐maximizing capital tax rates. This research convincingly demonstrates the importance of precisely identifying the degree of aggregate returns to scale before the benefits of tax reform can be accurately assessed. JEL Classification: E62, O40 Des degrés relativement faibles de rendements croissants à l'échelle augmentent substantiellement les effets positifs de bien‐être et les effets de revenus associés à une réforme fiscale. Des rendements externes à l'échelle de 10 pour‐cent accroissent les effets positifs de bien‐être d'une réforme fiscale d'un bon tiers, et les effets de revenus d'une manière significative par rapport à ce qui'ils seraient dans le cas de rendements constants à l'échelle. Des effets agrégés de retombée de 20 pour‐cent augmentent les effets positifs de bien‐être des trois quarts. Ces effets agrégés de retombée tendent à réduire les taux d'imposition du capital qui maximisent les revenus. Ces travaux montrent l'importance d'une identification précise du degré des rendements agrégés à l'échelle si l'on veut jauger avec justesse les effets positifs de bien‐être d'une réforme fiscale.

Suggested Citation

  • Todd A. Knoop & Kenneth J. Matheny, 2000. "Aggregate spillovers magnify the welfare benefits of tax reform," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 33(4), pages 962-980, November.
  • Handle: RePEc:wly:canjec:v:33:y:2000:i:4:p:962-980
    DOI: 10.1111/0008-4085.00049
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    More about this item

    JEL classification:

    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • O40 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General

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