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Does It Pay, at the Margin, to Work and Save? -- Measuring Effective Marginal Taxes on Americans' Labor Supply and Saving

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Author Info
Laurence J. Kotlikoff
David Rapson

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Abstract

Building on Gokhale, Kotlikoff, and Sluchynsky's (2002) study of Americans' incentives to work full or part time, this paper uses ESPlanner, a life-cycle financial planning program, in conjunction with detailed modeling of transfer programs to determine a) total marginal net tax rates on current labor supply, b) total net marginal tax rates on life-cycle labor supply, c) total net marginal tax rates on saving, and d) the tax-arbitrage opportunities available from contributing to retirement accounts. In seeking to provide the most comprehensive analysis to date of fiscal incentives, the paper incorporates federal and state personal income taxes, the FICA payroll tax, federal and state corporate income taxes, federal and state sales and excise taxes, Social Security benefits, Medicare benefits, Medicaid benefits, Foods Stamps, welfare (TAFCD) benefits, and other transfer program benefits. The paper offers four main takeaways. First, thanks to the incredible complexity of the U.S. fiscal system, it's impossible for anyone to understand her incentive to work, save, or contribute to retirement accounts absent highly advanced computer technology and software. Second, the U.S. fiscal system provides most households with very strong reasons to limit their labor supply and saving. Third, the system offers very high-income young and middle aged households as well as most older households tremendous opportunities to arbitrage the tax system by contributing to retirement accounts. Fourth, the patterns by age and income of marginal net tax rates on earnings, marginal net tax rates on saving, and tax-arbitrage opportunities can be summarized with one word -- bizarre.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 12533.

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Date of creation: Sep 2006
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Handle: RePEc:nbr:nberwo:12533

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Find related papers by JEL classification:
H1 - Public Economics - - Structure and Scope of Government
H2 - Public Economics - - Taxation, Subsidies, and Revenue
H3 - Public Economics - - Fiscal Policies and Behavior of Economic Agents

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  1. Rupert Sausgruber & Jean-Robert Tyran, 2008. "Tax Salience, Voting, and Deliberation," Discussion Papers 08-21, University of Copenhagen. Department of Economics. [Downloadable!]
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