Optimal Progressivity with Age-Dependent Taxation

J. Heathcote, Kjetil Storesletten & GL. Violante

Front page of Journal of Public Economics

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Published in:

Journal of Public Economics, Volume 189, September 2020

DOI: 10.1016/j.jpubeco.2019.104074

Abstract:

This paper studies optimal taxation of earnings when the degree of tax progressivity is allowed to vary with age. The setting is an overlapping-generations model that incorporates irreversible skill investment, flexible labor supply, ex ante heterogeneity in the disutility of work and the cost of skill acquisition, partially insurable wage risk, and a life cycle productivity profile. An analytically tractable version of the model without intertemporal trade is used to characterize and quantify the salient trade-offs in tax design. The key results are that progressivity should be U-shaped in age and that the average marginal tax rate should be increasing and concave in age. These findings are confirmed in a version of the model with borrowing and saving that we solve numerically.

Published Oct. 13, 2020 4:00 PM - Last modified Nov. 19, 2020 9:57 AM