The Effect of Base-Broadening Measures on Labor Supply and Investment: Considerations for Tax Reform
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Gravelle, Jane G.; Marples, Donald J.
[Excerpt] This report attempts to show how options to broaden the tax base by placing limitations on itemized deductions can potentially work against the expansionary effects of reducing marginal tax rates. After base-broadening tax reform taxpayers may face lower statutory marginal rates but some taxpayers—those who itemize—may have more of their income is subject to tax, effectively increasing their marginal tax rates. The report also addresses other common base-broadening provisions that increase the effective marginal tax rate on the return to capital.
labor supply; investment; tax reform; marginal tax rate