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International Tax Competition and Gains from Tax Harmonization


  • Assaf Razin
  • Efraim Sadka


In a world economy there are two types of distortions which can be caused by capital income taxation in addition to the standard closed-economy wedge between the consumer-saver marginal intertemporal rate of substitution and the producer-investor marginal productivity of capital: (i)international differences in intertemporal marginal rates of substitution, implying an inefficient allocation of world savings across countries; and (ii) international differences in the marginal productivity of capital, implying an inefficient allocation of world investment across countries. The paper focuses on the structure of taxation for countries which are engaged in tax competition and on potential gains from s tax harmonization. We show that if the competing countries are sufficiently coordinated with the rest of the world then tax competition leads each country to apply the residence principle of taxation and there are no gains from tax harmonization. If, however there is not sufficient coordination,tax competition leads to low capital income taxes and the tax burden falls on the internationally immobile factors. The outcome is nevertheless still efficient relative to the available constrained set of tax instruments.

Suggested Citation

  • Assaf Razin & Efraim Sadka, 1989. "International Tax Competition and Gains from Tax Harmonization," NBER Working Papers 3152, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:3152
    Note: ITI PE EFG IFM

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    1. Assaf Razin & Efraim Sadka, 1990. "Integration of International Capital Markets: The Size of Government and Tax Coordination," NBER Chapters, in: Taxation in the Global Economy, pages 331-356, National Bureau of Economic Research, Inc.
    2. Diamond, Peter A & Mirrlees, James A, 1971. "Optimal Taxation and Public Production: I--Production Efficiency," American Economic Review, American Economic Association, vol. 61(1), pages 8-27, March.
    3. Dixit, Avinash, 1985. "Tax policy in open economies," Handbook of Public Economics, in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 1, chapter 6, pages 313-374, Elsevier.
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