Proportional Income Taxation and Effective Progressivity
AbstractWhen incomes are exogenously given, a progressive tax structure reduces inequality in the sense that the Lorenz curve of after tax incomes is nowhere below that of before tax incomes whatever the circumstances as it was shown by U. Jakobsson (Journal of Public Economics 5 (1976), 161-168) The relevance of this standard result is however seriously limited since real-world incomes are determined by the working decisions of the agents in the economy. The paper aims at investigating the implications for effective progression of relaxing the assumption of exogenous incomes when individuals have the same preferences but different talents. We first extend the standard result to the case where agents' working decisions are fully taken into account and we conclude that it is generally impossible to disentangle the respective contributions to inequality reduction of the tax schedule and agents' preferences. We next demonstrate that an elasticity of labour supply which is non-decreasing in productivities is both necessary and sufficient for a proportional tax schedule to result in less unequally distributed incomes. Journal of Economic Literature
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by Institut d'economie publique (IDEP), Marseille, France in its series IDEP Working Papers with number 0309.
Length: 21 pages
Date of creation: Sep 2003
Date of revision:
Endogenous incomes; Labour supply; Redistribution; Taxation; Inequality; Progressivity;
Find related papers by JEL classification:
- H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
- H24 - Public Economics - - Taxation, Subsidies, and Revenue - - - Personal Income and Other Nonbusiness Taxes and Subsidies
- D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
This paper has been announced in the following NEP Reports:
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Tuomala, Matti, 1984. "On the optimal income taxation : Some further numerical results," Journal of Public Economics, Elsevier, vol. 23(3), pages 351-366, April.
- Kakwani, Nanak C, 1977. "Applications of Lorenz Curves in Economic Analysis," Econometrica, Econometric Society, vol. 45(3), pages 719-27, April.
- Stern, N. H., 1976. "On the specification of models of optimum income taxation," Journal of Public Economics, Elsevier, vol. 6(1-2), pages 123-162.
- Fellman, J, 1976. "The Effect of Transformations on Lorenz Curves," Econometrica, Econometric Society, vol. 44(4), pages 823-24, July.
- Eichhorn, Wolfgang & Funke, Helmut & Richter, Wolfram F., 1984. "Tax progression and inequality of income distribution," Journal of Mathematical Economics, Elsevier, vol. 13(2), pages 127-131, October.
- Moyes Patrick, 1994. "Inequality Reducing and Inequality Preserving Transformations of Incomes: Symmetric and Individualistic Transformations," Journal of Economic Theory, Elsevier, vol. 63(2), pages 271-298, August.
- Jakobsson, Ulf, 1976. "On the measurement of the degree of progression," Journal of Public Economics, Elsevier, vol. 5(1-2), pages 161-168.
- Ebert, Udo, 1992. "A reexamination of the optimal nonlinear income tax," Journal of Public Economics, Elsevier, vol. 49(1), pages 47-73, October.
- Jorge Onrubia & Rafael Salas & José Sanz, 2005. "Redistribution and labour supply," Journal of Economic Inequality, Springer, vol. 3(2), pages 109-124, August.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Yves Doazan) The email address of this maintainer does not seem to be valid anymore. Please ask Yves Doazan to update the entry or send us the correct address.
If references are entirely missing, you can add them using this form.