Corporate tax levels have fallen substantially in Europe during the last decades. A broad literature has identified tax competition as one reason for this decline in corporate tax levels. However, none of these studies explicitly asks the question whether tax competition within regions is...

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...

Every year ZEW Mannheim computes measures of corporate effective taxation in Europe based on the Devereux/Griffith methodology. The measures aim at comprehensively reflecting and consistently comparing the effective corporate tax levels in the different member states. For the computation of the...