Horizontal inequity under a dual income tax system: principles and measurement
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Tax systems with separate taxation of wage and capital income, also called dual income tax systems, have gained relevance through the Mirrlees Review. Obviously, such tax systems are exposed to horizontal equity (HE) failures, or horizontal inequity (HI). HE and HI have a firm grip on assessment of fair tax policies, both from an academic point of view and in general public debate. The dual income tax system of Norway was modified by the tax reform of 2006 precisely because the previous schedule failed to deliver equal tax treatment of equals. This paper discusses the meaning and measurement of HI effects of dual income tax systems, and evaluates the development of HI for Norway over the time period 2000–2008 using microdata. A copula-based identification strategy efficiently establishes a framework for evaluations of HI over time. The dual income tax system and the early announcement of its impending revision during the period under examination created measurement problems which we had to account for by defining a new income concept for the empirical strategy. As expected, we find less HI in Norway after the reform of 2006.
KeywordsDual income tax Horizontal inequity Reranking Copula estimation
JEL ClassificationD31 D63 H31
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- Aasness, J., Dagsvik, J. K., & Thoresen, T. O. (2007). The Norwegian tax-benefit model system LOTTE. In A. Gupta & A. Harding (Eds.), Modelling Our Future: Population Ageing, Health and Aged Care, International Symposia in Economic Theory and Econometrics (pp. 513–518). Amsterdam: Elsevier. CrossRefGoogle Scholar
- Alstadsæter, A. (2007). The Achilles heel of the dual income tax. The Norwegian case. Finnish Economic Papers, 20, 5–22. Google Scholar
- Atkinson, A. B. (1980). Horizontal equity and the distribution of the tax burden. In H. Aaron & M. J. Boskin (Eds.), The Economics of Taxation (pp. 3–18). Washington: Brookings Institution. Google Scholar
- Banks, J., & Diamond, P. (2010). The base for direct taxation. In Dimensions of Tax Design: the Mirrlees Review (pp. 548–648). Oxford: Oxford University Press. Google Scholar
- Boadway, R. (2004). The dual income tax system—an overview. CESifo DICE Report, 2(3), 3–8. Google Scholar
- Cnossen, S. (2000). Taxing capital income in the Nordic countries: a model for the European Union? In S. Cnossen (Ed.), Taxing Capital Income in the European Union—Issues and Options for Reform (pp. 180–213). Oxford: Oxford University Press. Google Scholar
- Crawford, C., & Freedman, J. (2010). Small business taxation. In J. Mirrlees, S. Adam, T. Besley, R. Blundell, S. Bond, R. Chote, M. Gammie, P. Johnson, G. Myles, & J. Poterba (Eds.), Dimensions of Tax Design: the Mirrlees Review. Oxford: Oxford University Press. Google Scholar
- Eide, E., von Simson, K., & Strøm, S. (2011). Rank dependent utility, tax evasion and labor supply, forthcoming FinanzArchiv. Google Scholar
- Feldstein, M. (1976b). Compensation in tax reform. National Tax Journal, 29, 123–130. Google Scholar
- Fjærli, E., & Lund, D. (2001). The choice between owner’s wages and dividends under the dual income tax. Finnish Economic Papers, 14, 104–119. Google Scholar
- Griffith, R., Hines, J., & Sørensen, P. B. (2010). International capital taxation. In J. Mirrlees, S. Adam, T. Besley, R. Blundell, S. Bond, R. Chote, M. Gammie, P. Johnson, G. Myles, & J. Poterba (Eds.), Dimensions of Tax Design: the Mirrlees Review. Oxford: Oxford University Press. Google Scholar
- Johns, A., & Slemrod, J. (2010). The distribution of income tax noncompliance. National Tax Journal, 63, 397–418. Google Scholar
- Kaplow, L. (1989). Horizontal equity: measures in search of a principle. National Tax Journal, 42, 139–154. Google Scholar
- Kaplow, L. (2000). Horizontal equity: new measures, unclear principles, NBER working paper No. W7649, The National Bureau of Economic Research. Google Scholar
- Kaplow, L., & Shavell, S. (2002). Fairness versus Welfare. Cambridge: Harvard University Press. Google Scholar
- Kay, J. (2010). Commentary by John Kay (to the base for direct taxation, by J. Banks and P. Diamond). In J. Mirrlees, S. Adam, T. Besley, R. Blundell, S. Bond, R. Chote, M. Gammie, P. Johnson, G. Myles, & J. Poterba (Eds.), Dimensions of Tax Design: the Mirrlees Review (pp. 656–663). Oxford: Oxford University Press. Google Scholar
- Ministry of Finance (2003). NOU 2003:9 Skatteutvalget (in Norwegian). Google Scholar
- Musgrave, R. A. (1990). Horizontal equity, once more. National Tax Journal, 43, 113–122. Google Scholar
- Nelsen, R. B. (2006). An Introduction to Copulas (2nd edn.). New York: Springer. Google Scholar
- OECD (2006). Fundamental reform of personal income tax, OECD tax policy studies No. 13, Paris, France. Google Scholar
- Schneider, F., & Buehn, A. (2009). Shadow economies and corruption all over the world: revised estimates for 120 countries. Economics: The Open Access, Open Assessment, E-journal, October 27, 2009, Version 2. Google Scholar
- Slemrod, J. B. (1992). Do taxes matter? Lessons from the 1980s. American Economic Review, 82, 250–256. Google Scholar
- Slemrod, J. B. (1995). Income creation or income shifting? Behavioral responses to the tax reform act of 1986. American Economic Review Papers and Proceedings, 85, 175–180. Google Scholar
- Slemrod, J., & Yitzhaki, S. (2004). Tax avoidance, evasion, and administration. In A. J. Auerbach & M. Feldstein (Eds.), Handbook of Public Economics (vol. 3, pp. 1425–1470). Amsterdam: Elsevier Science. Google Scholar
- Statistics Norway (2009a). Dwelling stock, http://www.ssb.no/english/subjects/10/09/boligstat_en/.
- Statistics Norway (2009b). Stock statistics, http://www.ssb.no/english/subjects/11/01/aksjer_en/.
- Statistics Norway (2010a). Income statistics for households, http://www.ssb.no/ifhus_en/.
- Statistics Norway (2010b). Account statistics. Annual reports for non-financial limited companies, http://www.ssb.no/regnaksje_en/.
- Thoresen, T. O., Bø, E. E., Fjærli, E., & Halvorsen, E. (2011). Evaluating the redistributional effects of tax policy changes: with an application to the 2006 Norwegian tax reform, DP 648, Statistics Norway. Google Scholar
- Yan, J. (2007). Enjoy the joy of copulas: with a package copula. Journal of Statistical Software, 21, 1–21. Google Scholar