How Large Are the Effects of Tax Changes?
AbstractWe use the time series of shifts in U.S. Federal tax liabilities constructed by Romer and Romer to estimate tax multipliers. Differently from the single-equation approach adopted by Romer and Romer, our estimation strategy (a Var that includes output, government spending and revenues, inflation and the nominal interest rate) does not rely upon the assumption that tax shocks are orthogonal to each other as well as to lagged values of other macro variables. Our estimated multiplier is much smaller: one, rather than three at a three-year horizon. When we split the sample in two sub-samples (before and after 1980) we find, before 1980, a multiplier whose size is never greater than one, after 1980 a multiplier not significantly different from zero. Following the findings in Bohn (1998), we also experiment with a model that includes debt and the non-linear government budget constraint. We find that, while in general not very important, the non-linearity that arises from the budget constraint makes a difference after 1980, when the response of fiscal variables to the level of the debt becomes stronger.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 7439.
Date of creation: Aug 2009
Date of revision:
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Other versions of this item:
- Carlo Favero & Francesco Giavazzi, 2009. "How large are the effects of tax changes?," NBER Working Papers 15303, National Bureau of Economic Research, Inc.
- Carlo Favero & Francesco Giavazzi, 2009. "How large are the effects of tax changes?," Working Papers 350, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
- E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy
- H60 - Public Economics - - National Budget, Deficit, and Debt - - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-11-27 (All new papers)
- NEP-CBA-2009-11-27 (Central Banking)
- NEP-MAC-2009-11-27 (Macroeconomics)
- NEP-PBE-2009-11-27 (Public Economics)
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