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IMPACT OF TAXES AND TRANSFERS

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ANALYTIC FOUNDATIONS: MEASURING<br />

THE REDISTRIBUTIVE <strong>IMPACT</strong> <strong>OF</strong> <strong>TAXES</strong><br />

<strong>AND</strong> <strong>TRANSFERS</strong> <br />

Ali Enami, Nora Lustig, Rodrigo Aranda <br />

CEQ Working Paper No. 25<br />

NOVEMBER 2016<br />

ABSTRACT<br />

This paper provides a theoretical foundation for analyzing the redistributive effect of taxes and<br />

transfers for the case in which the ranking of individuals by pre-fiscal income remains unchanged. We<br />

show that in a world with more than a single fiscal instrument, the simple rule that progressive taxes or<br />

transfers are always equalizing not necessarily holds, and offer alternative rules that survive a theoretical<br />

scrutiny. In particular, we show that the sign of the marginal contribution unambiguously predicts<br />

whether a tax or a transfer is equalizing or not.<br />

JEL classification: H22, D31, A23<br />

Keywords: Marginal contribution, progressivity, inequality, fiscal<br />

system with multiple taxes and transfers.<br />

This paper is a chapter in Nora Lustig (editor), Commitment to Equity Handbook. A Guide to Estimating the Impact of<br />

Fiscal Policy on Inequality and Poverty. Brookings Institution Press and CEQ Institute. The online version of the<br />

Handbook can be found here (copy the following URL<br />

link): http://www.commitmentoequity.org/publications/handbook.php. Launched in 2008, the CEQ project is<br />

an initiative of the Center for Inter-American Policy and Research (CIPR) and the department of Economics,<br />

Tulane University, the Center for Global Development and the Inter-American Dialogue. The CEQ<br />

project is housed in the Commitment to Equity Institute at Tulane. For more details visit<br />

www.commitmentoequity.org.<br />

Ali Enami and Rodrigo Aranda are doctoral students of the PhD in Economics at Tulane University and<br />

Research Associates of the CEQ Institute. Nora Lustig is the Director of the CEQ Institute at Tulane University.<br />

For questions, please contact aenami@tulane.edu.

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