Modelling corporate tax reforms in the EU: New simulations with the CORTAX model
This study investigates the economic impact of a recent proposal for a common corporate tax base (CCTB), European Commission (2016a), and a common consolidated corporate tax base with formula apportionment (CCCTB) within the EU, European Commission (2016b). On top of the common base, it considers proposals to reduce the debt bias in corporate taxation. To do so, we employ an applied general equilibrium model (CORTAX) covering all EU Member States, featuring different firm types and modelling many key features of corporate tax regimes, including multinational profit shifting, investment decisions, loss compensation and the debt-equity choice of firms. First, the economic impact of C(C)CTB is assessed, restricting the scope of the reforms to multinationals only. Macroeconomic results show that the common tax base simulations directly affect the cost of capital, which on average falls across the EU, boosting investment, and therefore driving the increase in GDP. Second, C(C)CTB is simulated together with proposals to reduce or eliminate the debt bias in corporate taxation, principally: the comprehensive business income tax (CBIT), the allowance for corporate equity (ACE) and the allowance for corporate capital (ACC). From a financing prospective, all proposals incentivise firms to rely less on debt-financing. From a macroeconomic perspective, the simulations which narrow the tax base by introducing addition deductions, i.e. ACE and ACC, raise GDP, despite the fact that the (ex-ante) CIT revenue is maintained by adjusting the CIT rate. The opposite is the case for the CBIT, which causes a fall in GDP. Third, a group of sensitivity simulations are presented to check for robustness. Among the insights from the sensitivity simulations, one notes that the inclusion of domestic firms in the CCCTB proposal somewhat increases the positive impact on GDP. A broader harmonised tax base results in lower welfare and GDP outcomes than a narrower harmonised tax base, because it more directly impacts the marginal investment decision. Reducing profit shifting slightly lowers investment, though on balance does not negatively impact welfare. The model results are robust to varying the capital-labour substitutability. In summary, the results of this economic modelling evaluation suggest that a fairer and more efficient tax system can be introduced whilst maintaining, and perhaps improving, GDP and welfare in the EU.
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- Michael Devereux & Harold Freeman, 1991. "A general neutral profits tax," Fiscal Studies, Institute for Fiscal Studies, vol. 12(3), pages 1-15, August.
- Devereux, Michael P & Griffith, Rachel, 2003.
"Evaluating Tax Policy for Location Decisions,"
International Tax and Public Finance,
Springer;International Institute of Public Finance, vol. 10(2), pages 107-126, March.
- Devereux, Michael P. & Griffith, Rachel, 2002. "Evaluating Tax Policy for Location Decisions," CEPR Discussion Papers 3247, C.E.P.R. Discussion Papers.
- Boadway, Robin & Bruce, Neil, 1984. "A general proposition on the design of a neutral business tax," Journal of Public Economics, Elsevier, vol. 24(2), pages 231-239, July.
- Robin Boadway & Neil Bruce, 1982. "A General Proposition on the Design of a Neutral Business Tax," Working Papers 461, Queen's University, Department of Economics.
- Marcel P. Timmer & Erik Dietzenbacher & Bart Los & Robert Stehrer & Gaaitzen J. Vries, 2015. "An Illustrated User Guide to the World Input–Output Database: the Case of Global Automotive Production," Review of International Economics, Wiley Blackwell, vol. 23(3), pages 575-605, 08.
- Spengel, Christoph & Ortmann-Babel, Martina & Zinn, Benedikt & Matenaer, Sebastian, 2012. "A common corporate tax base for Europe: An impact assessment of the draft council directive on a CC(C)TB," ZEW Discussion Papers 12-039, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
- Devereux, Michael P. & Griffith, Rachel, 1998. "Taxes and the location of production: evidence from a panel of US multinationals," Journal of Public Economics, Elsevier, vol. 68(3), pages 335-367, June.
- Michael Devereux & Rachel Griffith, 1996. "Taxes and the location of production: evidence from a panel of US multinationals," IFS Working Papers W96/14, Institute for Fiscal Studies.
- Alvarez Martinez, Maria Teresa & Barrios, Salvador & Bettendorf, Leon & d'Andria, Diego & Gesualdo, Maria & Loretz, Simon & Pontikakis, Dimitrios & Pycroft, Jonathan, 2016. "A New Calibration for CORTAX: A computable general equilibrium model for simulating corporate tax reforms," JRC Working Papers on Taxation & Structural Reforms 2016-09, Joint Research Centre (Seville site).
- Leon Bettendorf & Albert van der Horst, 2006. "Documentation of CORTAX," CPB Memorandum 161, CPB Netherlands Bureau for Economic Policy Analysis. Full references (including those not matched with items on IDEAS)
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