How Far Are We from the Slippery Slope? The Laffer Curve Revisited

Working Paper: CEPR ID: DP5657

Authors: Mathias Trabandt; Harald Uhlig

Abstract: The goal of this paper is to examine the shape of the Laffer curve quantitatively in a simple neoclassical growth model calibrated to the US as well as to the EU-15 economy. We show that the US and the EU-15 area are located on the left side of their labor and capital tax Laffer curves, but the EU-15 economy being much closer to the slippery slopes than the US. Our results indicate that since 1975 the EU-15 area has moved considerably closer to the peaks of their Laffer curves. We find that the slope of the Laffer curve in the EU-15 economy is much flatter than in the US which documents a much higher degree of distortions in the EU-15 area. A dynamic scoring analysis shows that more than one half of a labor tax cut and more than four fifth of a capital tax cut are self-financing in the EU-15 economy.

Keywords: Laffer curve; US; EU15 economy

JEL Codes: E0; E60; H0


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Positioning on the Laffer curve (H21)Risk of diminishing returns from tax increases (H31)
Positioning on the Laffer curve (H21)Economic distortions (H31)
Tax rates (H29)Government revenue (H27)
Tax rates (H29)Economic distortions (H31)
Labor tax cut (H31)Self-financing in the EU15 (H69)
Capital tax cut (H29)Self-financing in the EU15 (H69)

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