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Effects of predictable tax liability variation on household labor income

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    0389691 - NHU-C 2013 RIV CZ eng V - Research Report
    Feldman, N. E. - Katuščák, Peter
    Effects of predictable tax liability variation on household labor income.
    Prague: CERGE-EI, 2012. 45 s. CERGE-EI Working Paper Series, 454. ISSN 1211-3298
    R&D Projects: GA ČR(CZ) GAP402/10/2085
    Institutional support: PRVOUK-P23
    Keywords : tax salience * tax complexity * labor income
    Subject RIV: AH - Economics
    http://www.cerge-ei.cz/pdf/wp/Wp454.pdf

    Economic theory assumes that taxpayers use their true marginal tax rate (MTR) to guide their economic decisions. However, due to complexity of the tax system, taxpayers may incorrectly perceive their MTR, with implications for incentives. We first develop an updating model that formalizes this conjecture. It predicts that an unexpected increase in the previous year's tax liability pushes up the perception of the MTR in the current year, even though the MTR does not, in fact, change. We then examine whether household labor income responds to predictable (but not necessarily predicted) lump-sum variation in the previous year's tax liability due to loss of eligibility for the Child Tax Credit when the eligible child turns 17. Using an identification strategy based on an eligibility discontinuity, we find that losing the credit reduces, ceteris paribus, parental labor income in the year following the loss of the credit. This result is robust to a variety of tests and different data sources. Because it cannot be explained by an income effect or credit constraints, such a finding is inconsistent with the taxpayers being fully rational and fully informed. We interpret it as being driven by a substitution effect on labor supply due to imperfect ex-post understanding of the change in the tax schedule.
    Permanent Link: http://hdl.handle.net/11104/0218564

     
     
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