How The Presidential Tax Proposals Could Affect Aggregate Demand, Output, and Revenue October 17, 2016 Benjamin R. Page Dynamic Scoring of Tax Proposals
TPC’s Conventional Analysis of the Tax Plans • Uses a microsimulation model based on a large sample of tax returns • Allows for behavorial responses – Higher tax rates lead to lower taxable income due to changes in reporting – Tax rates influence capital gains realizations, purchases of particular goods • Does not incorporate changes to macroeconomic outcomes such as output www.taxpolicycenter.org
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TPC’s Conventional Analysis of the Clinton Plan • Raises marginal and average tax rates on many high-income households • Reduces taxes for lower-income households • Increases business taxes • Revenues increased by $1.4 trillion over 2017-2026
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Ways the Clinton Plan Would Affect the Economy • Reduces after-tax incomes • Increases marginal tax rates on labor income, reducing labor supply • Increases marginal tax rates on capital income, reducing private saving and investment • Reduces budget deficits, increasing national saving and investment www.taxpolicycenter.org
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TPC’s Conventional Analysis of the Trump Plan • Reduces average and marginal tax rates on most households – Biggest reductions flow to high-income households • Reduces taxes on corporate and other business income • Revenues reduced by $6.2 trillion over 20172026 www.taxpolicycenter.org
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Ways the Trump Plan Would Affect the Economy • Increases after-tax incomes • Reduces marginal tax rates on labor income, increasing labor supply • Reduces marginal tax rates on capital income, increasing private saving and investment • Increases budget deficits, reducing national saving and investment www.taxpolicycenter.org
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Dynamic Scoring • Macroeconomic effects influence revenues, but also useful information for assessing desirability of tax policy changes • Other features of tax policy more central than macro effects – Level of revenues – Distribution of tax burden • Tax policy affects the economy at the margins www.taxpolicycenter.org
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Two Approaches to Dynamic Analysis • Keynesian – Effects stem from changes in demand – Equations relate aggregate variables – Output changes relative to its potential level – Output returns to potential after a few years • Overlapping generations – Effects stem from behavior at household level – Households respond to incentives to work and save – Households forward-looking – Output equals potential www.taxpolicycenter.org
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TPC Keynesian Model • Estimates effects in two stages 1. Direct effect of policy on demand 2. Indirect effects of initial change in demand • Model employs a range of assumptions for both direct and indirect effects • Effects fade over four years www.taxpolicycenter.org
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Direct Effect on Demand • With more after-tax income, consumers spend more – Lower-income households spend a larger share of their additional income than higher-income households do – Baseline assumption: • Lowest quintile spends 90 cents of each additional dollar • Highest quintile spends just 55 cents of each additional dollar
• Investment incentives lead firms to invest more • Higher wealth leads consumers to spend more www.taxpolicycenter.org
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Indirect Effects on Demand • Direct effect generates further, indirect effects that can add to or offset the direct effect – On the plus side, increased demand can lead to increased hiring, investment spending, or consumption spending – On the minus side, increased demand could lead to higher interest rates, reducing investment and consumer spending www.taxpolicycenter.org
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Indirect Effects on Demand • In normal economic times the Fed offsets expansionary tax policy by raising rates to prevent increase in inflation • In deep recession the Fed will not change rates • TPC’s Keynesian model assumes 2017 will be a blend of those two states, and following years will be “normal” • In 2017 indirect effects offset 1/6 of direct effects; in later years 1/2 www.taxpolicycenter.org
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Clinton Tax Plan • Increases taxes on average – With lower incomes, people spend less – Biggest increases fall on to high-income households – Mutes spending decline
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Trump Tax Plan • Cuts taxes for most households – With higher incomes, people spend more – Biggest cuts go to high-income households • Mutes spending increase
• Expensing provision encourages firms to boost investment spending www.taxpolicycenter.org