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A characteristics approach to optimal taxation and tax-driven product innovation

Kleven, Henrik Jacobsen and Slemrod, Joel (2009) A characteristics approach to optimal taxation and tax-driven product innovation. Department of Economics, London School of Economics and Political Science, London, UK. (Unpublished)

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Abstract

Any tax system imposing selective commodity taxation must have procedures for assigning different goods to tax rate categories. Real-world tax legislation does this on the basis of observable characteristics, allowing the tax system to handle a constantly evolving set of available goods. We recast the theory of optimal taxation in the language of characteristics using the Gorman-Lancaster model of consumer behavior, and present a theory of tax-driven product innovation and optimal line drawing. The paper consists of two parts. The first part presents optimal tax rules showing that characteristics can be used to gauge optimal tax rates in an intuitive way: the closer two goods are in characteristics space, the greater their substitutability and the smaller the optimal tax rate differential. The second part starts from the observation that, whenever the number of tax instruments is finite, tax systems have to draw lines that define tax-rate regions in characteristics space. Such lines are associated with notches in tax liability as a function of characteristics, creating incentives to introduce new goods (i.e., new characteristics combinations) in order to reduce tax liability. New goods introduced this way are socially inferior to existing goods. Second-best optimal tax systems draw lines so as to avoid such tax-driven product innovations; only goods on the characteristics possibility frontier are allowed in the market. Hence, although the tax system is second-best, the set of goods produced is first-best given the demand for characteristics

Item Type: Monograph (Working Paper)
Official URL: http://personal.lse.ac.uk/kleven/Downloads/MyPaper...
Additional Information: © 2009 The Author
Library of Congress subject classification: H Social Sciences > HJ Public Finance
Journal of Economic Literature Classification System: H - Public Economics > H2 - Taxation, Subsidies, and Revenue > H20 - General
Sets: Departments > Economics
Collections > Economists Online
Research centres and groups > Centre for Economic Performance (CEP)
Rights: http://www.lse.ac.uk/library/usingTheLibrary/academicSupport/OA/depositYourResearch.aspx
Date Deposited: 18 Apr 2011 09:50
URL: http://eprints.lse.ac.uk/35704/

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