Public Finance in Practice and Theory *

Alan Auerbach

CESifo Economic Studies, 2010, vol. 56, issue 1, 1-20

Abstract: Public finance has both normative and positive elements, and moving between theory and practice requires attention to help us understand both what policies government should adopt and whether it is likely to do so. We should not be surprised when bad policies are adopted in spite of better policies being available if our political system is structured to deliver bad outcomes, for example, if our political environment gives politicians strong incentives to serve narrow interests at the expense of the common good. But this article focuses on examples where the contrast between normative and positive outcomes is not so clearly explained, and thus where understanding the reasons for observed policy practices might help us develop better positive theories. The four cases analyzed are: piecemeal progressivity, minimum taxes and other individual limits, quantity-based restrictions and dedicated taxes. While a full explanation for the anomalies discussed lies beyond this article's scope, some lessons can be drawn from them. (JEL codes: H11 and D78) Copyright The Author 2009. Published by Oxford University Press on behalf of Ifo Institute for Economic Research, Munich. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org, Oxford University Press.

Date: 2010
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