On the impact of a tax shock in Portugal

Alfredo Pereira and Pedro G. Rodrigues ()
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Pedro G. Rodrigues: Ministério das Finanças

Portuguese Economic Journal, 2002, vol. 1, issue 3, No 1, 205-236

Abstract: Abstract. In 1999, Cavaco Silva, the Portuguese Prime Minister from 1985 to 1995, proposed a comprehensive tax reform package, which is to this day the basic reference in the tax policy debate in Portugal. A tax shock would consist of 4pp cuts in the corporate income tax and in the firms’ social security contribution rates, and a 5pp reduction in the highest personal income tax rate. These cuts would be financed by combating tax evasion, curbing wasteful public expenditure and, if necessary, by increasing the VAT rate by up to 2pp. Using a dynamic general equilibrium model to evaluate the effects of this tax shock, we find that the long-term GDP gains would be between 0.72% and 2.91% while the effects on lifetime private welfare would range between -0.99% and 0.9%. The efficiency of this tax reform package depends critically on the way the tax cuts are financed to ensure deficit neutrality. Because investment is subject to adjustment costs, to alleviate the long-run trade-off between GDP and welfare, tax policy changes must induce a significant increase in net labor income.

Keywords: Efficient tax reform; Portugal; Dynamic general equilibrium (search for similar items in EconPapers)
Date: 2002
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DOI: 10.1007/s10258-002-0012-1

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