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NB!NB!NB!: The Case for a Progressive Tax by Peter Diamond Emmanuel Saez

http://elsa.berkeley.edu/~saez/diamond-saezJEP11opttax.pdf

The Case for a Progressive Tax: From Basic

Research to Policy Recommendations

Peter Diamond

Emmanuel Saez

CESIFO WORKING PAPER NO. 3548

CATEGORY 1: PUBLIC FINANCE

AUGUST 2011

 

Abstract

This paper presents the case for tax progressivity based on recent results in optimal tax theory.

We consider the optimal progressivity of earnings taxation and whether capital income should

be taxed. We critically discuss the academic research on these topics and when and how the

results can be used for policy recommendations. We argue that a result from basic research is

relevant for policy only if (a) it is based on economic mechanisms that are empirically

relevant and first order to the problem, (b) it is reasonably robust to changes in the modeling

assumptions, (c) the policy prescription is implementable (i.e., is socially acceptable and is

not too complex). We obtain three policy recommendations from basic research that satisfy

these criteria reasonably well. First, very high earners should be subject to high and rising

marginal tax rates on earnings. Second, low income families should be encouraged to work

with earnings subsidies, which should then be phased-out with high implicit marginal tax

rates. Third, capital income should be taxed. We explain why the famous zero marginal tax

rate result for the top earner in the Mirrlees model and the zero capital income tax rate results

of Chamley-Judd and Atkinson-Stiglitz are not policy relevant in our view.

JEL-Code: H210.

……

References (in part, üe)

 

Atkinson, Anthony, Thomas Piketty, and Emmanuel Saez. 2011. “Top Incomes in the Long Run of History”, forthcoming Journal of Economic Literature.

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Banks, James and Peter Diamond. 2010 “The Base for Direct Taxation,” in Dimensions of Tax Design: The Mirrlees Review, Edited by The Institute for Fiscal Studies (IFS), Oxford University Press for The Institute for Fiscal Studies (Oxford). Chapter 6, p.548-648.

Chamley, Christophe. 2001 “Capital Income Taxation, Wealth Distribution and Borrowing Constraints,” Journal of Public Economics 79, 55–69.

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Public Economics 13, February, 101-110.

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Munich Lectures, Cambridge: MIT Press.

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with Variable Retirement,” Scandinavian Journal of Economics 88 (1): 25-50.

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Heterogeneous Discount Rates,” MIT working paper, forthcoming American Economic

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Indirect and Capital Taxation.” Review of Economic Studies, 70(3): 569-87.

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A Case for Asset Testing.” Journal of Political Economy, 114(2): 257-69.

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Golosov, Mikhail, Aleh Tsyvinski, and Matthew Weinzierl. 2009. “Preference Heterogeneity and Optimal Commodity Taxation” Yale Working Paper.

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Piketty, Thomas and Emmanuel Saez. 2003. “Income Inequality in the United States, 1913-1998”, Quarterly Journal of Economics, 118(1), 1-39, series updated to 2007 in August 2009.

Piketty, Thomas and Emmanuel Saez. 2007 “How Progressive is the U.S. Federal Tax System? A Historical and International Perspective”, Journal of Economic Perspectives, 21(1), 3-24.

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Saez, Emmanuel. 2001. “Using Elasticities to Derive Optimal Income Tax Rates”, Review of Economic Studies, 68: 205-229.

Saez, Emmanuel. 2002a. “Optimal Income Transfer Programs: Intensive Versus Extensive Labour Supply Responses.” Quarterly Journal of Economics, 117(2): 1039-73.

Saez, Emmanuel. 2002b. “The Desirability of Commodity Taxation under Non-linear Income Taxation and Heterogeneous Tastes.” Journal of Public Economics, 83(2): 217–

Saez, Emmanuel. 2004. “The Optimal Treatment of Tax expenditures”, Journal of Public Economics, 88(12): 2657-2684.

Saez, Emmanuel, Joel Slemrod, and Seth Giertz. 2011. “The Elasticity of Taxable

Income with Respect to Marginal Tax Rates: A Critical Review”, forthcoming in the Journal of Economic Literature.

Comment: in the present Estonian tax mechanism design situation – anomalously no capital income tax and flat income earning tax in general – the most important  effective policy recommendation in this Paper are in short given on pp 2-3 as First and Third:

We obtain three policy recommendations from basic research that we believe can

satisfy these three criteria reasonably well. First, very high earners should be subject to

high and rising marginal tax rates on earnings. In particular, we discuss why the famous

zero marginal tax rate at the top of the earnings distribution is not policy relevant.

Second, the earnings of low income families should be subsidized and those subsidies

should then be phased-out with high implicit marginal tax rates. This result follows

because labor supply responses of low earners are concentrated along the margin of

whether to participate in labor markets at all (the extensive as opposed to the intensive

margin). These two results combined imply that the optimal profile of transfers and taxes

is highly nonlinear and cannot be well approximated by a flat tax along with lump sum

“demogrants.” Third, we argue that capital income should be taxed. We will review

certain theoretical results—in particular, those of Atkinson and Stiglitz (1976), Chamley

(1986), and Judd (1985)—implying no capital income taxes, and argue that these findings

are not robust enough to be policy relevant. In the end, persuasive arguments for taxing

capital income are that there are difficulties in practice in distinguishing between capital

and labor incomes, that borrowing constraints make full reliance on labor taxes less efficient, and that savings rates are heterogeneous.”

Also most important for us in References is a exelent collection of the newest rigorous publications in this field.

The problems of modelling of connected uncertainties and moral hazards are perhaps need some more considerations in the first place!

 

 

 

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March 29, 2014 - Posted by | Uncategorized

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