Gillitzer, Christian, Kleven, Henrik Jacobsen and Slemrod, Joel
(2017)
A characteristics approach to optimal taxation: line drawing and tax-driven product innovation.
Scandinavian Journal of Economics, 119 (2).
pp. 240-267.
ISSN 0347-0520
Abstract
Real-world tax legislation assigns goods to different categories of tax rates 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, and we show how to optimally draw lines that delineate tax-rate regimes. Such lines are associated with notches in tax liability as a function of characteristics, creating incentives to introduce goods with new combinations of characteristics in order to reduce tax liability. With a restricted set of tax instruments, such notches are in general part of the second-best optimal tax system.
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