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Does Tax Transparency Influence Wage Setting?. Evidence on Gender Gaps

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Abstract

This paper examines how an often-overlooked source of pay transparency—the public disclosure of tax information—affects gender wage gaps. We exploit a 2001 change in Norway that made individual tax returns searchable online. Using matched employer–employee data and a difference in-differences design, we find that within-firm gender wage gaps fell by 2.2 percentage points (8.7 percent), driven by rising female wages. Effects are strongest in private-sector firms, industries with initially larger gaps, and municipalities that previously lacked easy access to printed tax lists. Wage gains are concentrated among job-changing women, suggesting that broad-based transparency mainly operates through improved information for job search.

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  • Cristiano C. Carvalho & Trine E. Vattø, 2026. "Does Tax Transparency Influence Wage Setting?. Evidence on Gender Gaps," Discussion Papers 1033, Statistics Norway, Research Department.
    • Handle: RePEc:ssb:dispap:1033
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    JEL classification:

    • J16 - Labor and Demographic Economics - - Demographic Economics - - - Economics of Gender; Non-labor Discrimination
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • J38 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Public Policy

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