Conceição Castro*

mariacastro@eseig.ipp.pt

(recebido em 21 de Julho de 2007; aceite em 3 de Outubro de 2007)

Resumo: A Curva de Laffer postula que a partir de determinados níveis de taxas de impostos, uma redução destas pode aumentar as receitas fiscais. Tendo presentes os recentes desenvolvimentos da teoria do crescimento económico, que predizem que a política fiscal tem efeitos permanentes de longo prazo na taxa de crescimento económico, aquele argumento pode ser encarado num contexto dinâmico: a fiscalidade afecta permanentemente a taxa de crescimento económico de longo prazo, alterando as bases fiscais futuras, melhorando, em consequência, a posição orçamental de longo prazo. Neste artigo procura-se averiguar a validação de um efeito Laffer dinâmico para os Estados-Membros da União Europeia dos 15 e, em consequência, se a política fiscal pode ser gerida de forma a substituir o endividamento por reduções de impostos.

Palavras-chave: Curva de Laffer – Política fiscal

Abstract: Laffer’s curve proclaims that from certain income tax levels, their reduction may raise tax revenues. Knowing the most recent developments of the economic growth theory, that predict that the fiscal policy has permanent long term effects on the economic growth the previous argument may be seen in a dynamic context: the fiscal policy permanently affects the long term economic growth, changing the future fiscal bases, consequently improving the long term budget position. The present work aims the verification of the dynamic Laffer’s effect validation to EU15 members and, consequently, if fiscal policy can be managed to substitute indebtedness for tax reductions.

Keywords: Laffer curve – Fiscal policy

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Referências Bibliográficas

AGELL, J., and M. PERSSON (2000): “On the Analytics of the Dynamic Laffer Curve” CESifo (Center for Economic Studies and Ifo Institute for Economic Research), CESifo Working Paper Series Nº 383.

AMECO Database, Annual Macro-Economic Database of the European Commission’s Directorate General for Economic and Financial Affairs (DG ECFIN), em http://europa.eu.int/comm/economy_finance/indicators/annual_macro_economic_database/ameco_en.htm

ATTANASIO, O. P. , and G. WEBBER (1993): “Consumption Growth, the Interest Rate and Aggregation” Review of Economic Studies, 60, 631-649.        [ Links ]

BERTOLA, G. (1994): “Factor Shares in Old Models of Growth” European Economic Review, 40, 1541-1560.

BRUCE, N., and S. TURNOVSKY (1999): “Budget Balance, Welfare, and Growth Rate” Dynamic Scoring” Of the Long-Run Government Budget”, Journal of Money, Credit and Banking, 31, 162-186.

DALAMAGAS, B. (1998a): “Endogenous Growth and the Dynamic Laffer Curve”, Applied Economics, 30, 63-75.

— (1998b): “Testing the Validity of the Laffer-Curve Hypothesis”, Annales d'économie et de statistique, 52, 77-102.

— (2003): “Tax Rate Changes and Fiscal Deficits: An Empirical Investigation”, Apllied Economics Letters, 10, 3-7.

— (2004): “National Policies and Economic Growth: A Reappraisal”, NYU Development Research Working Paper Nº 1.

— (2005): “Income and Substitution Effects of Fiscal Policy on Work Effort”, International Review of Applied Economics, 19, 219-243.

EASTERLY, W. (2004): “National Policies and Economic Growth: A Reappraisal”, NYU Development Research Working Paper Nº 1.

FELDSTEIN, M. (1996): “The Missing Piece in Policy Analysis: Social Security Reform,” American Economic Review, 86, 1-14.

HARASHIMA, T. (2005): “An Estimate of the Elasticity of Intertemporal Substitution in a Production Economy,” Economics Working Paper Archive EconWPA Nº 0508030, Cabinet Office of Japan, University of Tsukuba

IRELAND, P. N. (1994a): “Supply-Side Economics and Endogenous Growth”, Journal of Monetary Economics, 33, 559-571.

KING, R. G., and S. REBELO (1990): “Public Policy and Economic Growth: Developing Neoclassical

LAFFER, A. B. (1979): “Why Supply-Side Economics Is Suddently So Popular”, Business Week, 17 de Setembro. — (1981a): “Government Exactions and Revenue Deficiencies”, Cato Journal, 1, 1-21. — (1981b): “Supply-Side Economics”, Financial Analysts Journal, 29-43. — (2003): “The Political Situation in California”, Reform, Monday 1 September.

— (2004): “The Laffer Curve: Past, Present and Future”, Backgrounder, 1-16.

MAGE, S. (2005): “Poland's Accession to the EU: What Effects on Transitional Dynamics, Long Run Growth and Welfare?,” www.etsg.org/ETSG2005/papers/mage.pdf

NOVALES, A., and J. RUIZ (2002): “Dynamic Laffer Curves”, Journal of Economic Dynamics & Control, Elsevier, 27, 181-206.

PECORINO, P. (1994): “The Growth Rate Effects of Tax Reform”, Oxford Economic Papers, 46, 492-501. — (1995): “Tax Rates and Tax Revenues in a Model of Growth Trough Human Capital Accumulation”, Journal of Monetary Economics, 36, 527-539.

PEREIRA, A., and P. RODRIGUES (2001a): “Public Debt and Economic Performance”, Ministério das Finanças, Direcção Geral de Estudos e Previsão, Working Paper Nº 20. ¾ (2001b): “On the Impact of a Tax Shock in Portugal”, Ministério das Finanças, Direcção Geral de Estudos e Previsão, Working Paper Nº 22.

REBELO, S. (1991): “Long Run Policy Analysis and Long-Run Growth”, Journal of Political Economy, 99, 500-521.

SMETTERS, K. (2002): “The (Interesting) Dynamic Properties of the Neoclassical Model with CES Production”, Review of Economic Dynamics, 6, 697-707.

Van den HAUWE, L. (2000): “The Case for Supply-Side Economics Revisited: The Effect of Time Preference”, European Journal of Laws and Economics, 10, 139-160. WANNISKI, J. (1978): “Taxes, Revenues and The «Laffer Curve»”, The Public Interest, Winter, 1-14.

*ESEIG - Escola Superior de Estudos Industriais e de Gestão, Instituto Politécnico do Porto