A Net Welfare Benefit Approach to Optimal Taxation

Cristian Sepulveda ()

International Center for Public Policy Working Paper Series, at AYSPS, GSU from International Center for Public Policy, Andrew Young School of Policy Studies, Georgia State University

Abstract: This paper challenges the widespread notion that the labor income tax is an inherently distortionary tax instrument. Optimal tax theory considers the lump-sum tax as the only efficient or non-distortionary tax instrument. This conclusion depends on two (often implicit) assumptions: one is that the economy is operating at the optimal welfare maximizing solution, where the marginal cost of tax revenue is equal to its marginal benefit; and the other that public expenditure has no effect on taxpayers’ budget constraints. However, for a government program to be worthwhile, total benefit must be greater than total cost, and it is easy to find examples where budget constraints are affected by public expenditure. This paper shows that, when the two assumptions are relaxed, the combined use of labor income and lump-sum taxes may allow a representative taxpayer to reach greater levels of welfare than the use of a lump-sum tax alone.

Pages: 16 pages
Date: 2018-10
New Economics Papers: this item is included in nep-pbe and nep-pub
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Persistent link: https://EconPapers.repec.org/RePEc:ays:ispwps:paper1822

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