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Income Taxes, Gross Hourly Wages, and the Anatomy of Behavioral Responses: Evidence from a Danish tax reform

Kazuhiko Sumiya () and Jesper Bagger

Discussion papers from Research Institute of Economy, Trade and Industry (RIETI)

Abstract: This paper provides quasi-experimental evidence on the effects of income taxes on gross hourly wages by utilizing administrative data and a tax reform in Denmark. The reform introduced joint taxation to a middle tax bracket, bringing large changes to the tax system facing married couples. Using variation in spousal income for identification, we present non-parametric graphical evidence based on a difference-in-differences design among working married males. First, we find heterogeneous effects across income levels. For low-income workers, taxes have negative and dynamic effects on wages. Their elasticity of wages (with respect to net-of-marginal-tax rates) is close to one. For higher-income workers, the effects are small and static, with an elasticity of approximately 0.2. Second, wages respond to taxes through human capital accumulation and job changes. Finally, with smaller magnitudes than wages, daily hours worked also respond negatively to taxes, which contrasts with the prediction from a standard labor supply-and-demand model.

Pages: 46 pages
Date: 2022-08
New Economics Papers: this item is included in nep-lma, nep-pbe and nep-pub
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https://www.rieti.go.jp/jp/publications/dp/22e077.pdf (application/pdf)

Related works:
Working Paper: Income Taxes, Gross Hourly Wages, and the Anatomy of Behavioral Responses: Evidence from a Danish Tax Reform (2022) Downloads
Working Paper: Income Taxes, Gross Hourly Wages, and the Anatomy of Behavioral Responses: Evidence from a Danish Tax Reform (2022) Downloads
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Persistent link: https://EconPapers.repec.org/RePEc:eti:dpaper:22077

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