Coase-Sandor Working Paper Series in Law and Economics

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Law & Economics Working Papers


This paper considers the arguments regarding the choice between an ideal income tax and an ideal consumption tax, focusing on an argument made by Atkinson and Stiglitz regarding neutral taxation of commodities. The argument shows that a properly designed consumption tax is Pareto superior to an income tax: it is more efficient and at least as good at redistribution. The major exception to the Atkinson and Stiglitz result is if individuals with equal wages have different propensities to save. In that event, a consumption tax may no longer be Pareto superior to an income tax. A consumption tax will continue, however, to be more desirable than an income tax. It will be strictly more efficient than an income tax, and under reasonable assumptions, better at redistributing from those who are better off to those who are worse off. This result holds true even if one heavily weights the welfare of the poor.



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