This paper uses a game–theoretic approach to analyse the taxation of interest income in Europe in the presence of tax evasion. The model allows us to assess the success of various reform proposals. We argue that the tax treatment of nonresidents' interest income plays a crucial role. When decisions on discrimination and on withholding tax rates are made non‐cooperatively, the outcome is similar to a prisoners' dilemma. All countries discriminate, but in equilibrium internationally mobile portfolio capital evades taxation successfully. In contrast, if all governments did not discriminate, tax competition leads to less tax evasion.

Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in AbstractIn the presence of international-capital mobility foreign direct investment is influenced by corporate income taxation and the rules how taxes paid in the host country are treated at home. In this paper the exemption, credit and deduction method are considered as tax rules. First, it is shown that under the exemption method there exist tax rate combinations that lead to a reversal of capital flows compared to a free-trade situation. Second, the decision on the tax rule and the corporate tax rate is endogenized as outcome in a non-cooperative game. All tax rules lead to the same inefficient outcome. Therefore, for each tax rule we analyze the conditions for Pareto-improving tax cooperation. It is shown that only the credit method requires neither compensatory payments nor fully harmonized tax rates.

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