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CHAPTER 18 Personal Taxation and Behavior Copyright © 2010 by the McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin
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18-2 Labor Supply Hours of leisure per week Income per week 0T time endowment D |Slope| = w F G Leisure Work i ii iii E1E1 Income
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18-3 Effects of Taxation Hours of leisure per week Income per week 0T D |Slope| = w F G ii iii E1E1 i I E2E2 |Slope| = (1-t)w H G’ Hours of work before tax Hours of work after tax
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18-4 Effects of Taxation Hours of leisure per week Income per week 0T D F G ii iii E1E1 i J E3E3 H K Hours of work before tax Hours of work after tax
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18-5 Effects of Taxation Hours of leisure per week Income per week 0T D F N E1E1 P E4E4 Hours of work before tax |Slope| = w |Slope| = (1-t 1 )w |Slope| = (1-t 2 )w (1-t 1 )$5,000 (1-t 1 )$5,000 + (1-t 2 $5,000
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18-6 Empirical Findings Eissa [2001] Males Females
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18-7 Some Caveats Demand-side considerations Individual versus group effects Other dimensions of labor supply The compensation package The expenditure side
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18-8 Labor Supply and Tax Revenues Hours per week Wage rate per hour SLSL w L0L0 (1-t 1 )w L1L1 d b ac (1-t 2 )w e f L2L2 k (1-t 3 )w h i L3L3 j (1-t A )w LALA
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18-9 Tax Rates versus tax revenue – Laffer Curve Tax rate Tax revenue t1t1 t2t2 tAtA t3t3
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18-10 Debate Over the Laffer Curve The Laffer curve and the elasticity of labor supply Where on the Laffer curve is the economy operating? Empirical estimates of the elasticity of labor supply Other ways tax rates can affect tax revenues Determining the optimal tax rate
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18-11 Saving Present consumption (c 0) Future consumption c 1 Endowment point I0I0 I1I1 M N ІSlopeІ = 1 + r E1E1 c0*c0* c1*c1* i ii iii Saving
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18-12 Deductible Interest Payments and Taxable Interest Receipts Present consumption (c 0) Future consumption c 1 I0I0 I1I1 M N After-tax budget line ІSlopeІ = 1 + (1-t)r E1E1 c0*c0* c1*c1* Saving before tax Q P A c0tc0t c1tc1t Saving after tax
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18-13 Deductible Interest Payments and Taxable Interest Receipts Present consumption (c 0) Future consumption c 1 I0I0 I1I1 M N After-tax budget line ІSlopeІ = 1 + (1-t)r E1E1 c0*c0* c1*c1* Saving before tax Q P A c0tc0t c1tc1t Saving after tax
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18-14 Nondeductible Interest Payments and Taxable Interest Receipts Present consumption (c 0) Future consumption c 1 I0I0 I1I1 M N After-tax budget line ІSlopeІ = 1 + (1-t)r c1*c1* Q P A c1tc1t
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18-15 Some Additional Considerations Real net rate of return Many assets Private saving versus social saving Validity of life-cycle model Empirical evidence: the effect of taxation on saving
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18-16 Tax-Preferred Savings Accounts Types of tax-preferred savings accounts and how they work Are contributions to these accounts new saving? Administrative details and effect on saving: insights from Behavioral Economics
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18-17 Taxes and the Capital Shortage Taxes and investment Taxes and excess burden Closed versus open economy Empirical evidence
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18-18 Housing Decisions Effects of the income tax on housing decisions –R net = R – I + ΔV Implicit rent not taxed Deductibility of mortgage interest and property tax payments The decision to rent or buy
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18-19 Proposals for Change Critique of subsidy for owner-occupied housing –Are there significant positive externalities? –Impact on distribution of income –Incentive to take on risky mortgages, contributing to the housing and financial crisis of 2008-2009 Political feasibility of taxing imputed rent Reform proposals –Elimination of deduction for property tax and mortgage interest –Placing an upper-limit on deductions –An efficient solution
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18-20 Portfolio Composition Tobin’s model of portfolio composition Impact of proportional tax with full loss offset –Impact on return –Impact on risk Empirical evidence
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18-21 A Note on Politics and Elasticities Ambiguity about effect of taxation on behavior Importance of elasticities “Convenient” beliefs about elasticities
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18-22 Taxes and Human Capital Accumulation Human capital Investing in human capital –B – C > 0 –(1 – t)B – (1 – t)C = (1 – t)(B – C>) 0 –Income versus substitution effects Shortcomings of model –Returns uncertain –Explicit costs –Other taxes –Progressive taxes
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18-23 Effect of Taxation on Saving Problems using the regression approach –Specification issues –Measurement issues Joint Committee on Taxation [2005]
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