Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/122027
Authors: 
Usher, Dan
Year of Publication: 
2014
Series/Report no.: 
Queen's Economics Department Working Paper 1334
Abstract: 
Through tax evasion, through the labour-leisure choice or in other ways, taxpayers reduce the tax base in response to an increase in the tax rate. The process is commonly-believed to generate a humped Laffer curve with a revenue-maximizing tax rate well short of 100%. That need not be so. In the "new tax responsiveness literature", the revenue-maximizing tax rate is inferred from the observed "elasticity of taxable income". It is shown in this article 1) that the inference is unwarranted because the elasticity of taxable income may vary with the tax rate, 2) that the "new tax responsiveness literature" imposes the implicit assumption that tax revenue falls to 0 when the tax rate rises to 100%, 3) that tax revenue may increase together with the tax rate all the way up to 100% and 4) that the Laffer curve is ill-defined because tax revenue at any given rate may depend upon how tax revenue is spent.
Subjects: 
revenue-maximizing tax rate
Laffer curve
JEL: 
H21
H23
Document Type: 
Working Paper

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