The European Court of Justice (ECJ) has become an influential player in the field of direct taxation in the European Union in the past twenty years. However, it is unclear whether the ECJ's decisions actually increase tax neutrality and therefore contribute to the achievement of an internal...

Ergänzend zu dem im ifo Schnelldienst 11/2004 diskutierten Thema "Sollte die Unternehmensbesteuerung innerhalb der EU harmonisiert werden?" plädiert Prof. Dr. Christoph Spengel, Universität Gießen, für eine Angleichung der effektiven Unternehmenssteuerbelastungen innerhalb der EU. Dazu...

Globalisation and the fast-approaching digitalisation increase capital as well as labour mobility fostering tax competition among countries worldwide. Based on a unique dataset, we analyse the development of effective tax burdens on corporations and highly skilled labour for 26 OECD countries...

11 European countries now operate IP Box regimes that provide substantially reduced rates of corporate tax for income derived from important forms of intellectual property. We incorporate these policies into forward-looking measures of the cost of capital, effective marginal tax rates and...