This paper provides an efficiency argument in favour of progressive labour income taxation. When the consumer faces a trade-off between investments in financial and human capital, a proportional comprehensive income tax tends to discriminate in favour of human capital investments. This effect is...

We theoretically express the Laffer tax rate on capital income as a function of the elasticities of capital income (the "direct" elasticity) and of labor income (the "cross" elasticity) with respect to the net-of-tax rate on capital income. We estimate these elasticities using salient capital...

The German Income Tax Reform 2000, which announced a reduction in income tax rates to be implemented in a series of three stages, was welcomed by the public as a step towards unleashing lurking growth potentials. Nonetheless, in the course of the year 2001 a dispute arose, centering around the...

The desirability of inheritance and gift taxes depends on individuals’ tax responsiveness. This paper demonstrates how strongly, and in what way, the German inheritance and gift tax influences taxpayer behavior. To that end, it combines administrative data with cross-bracket tax variation: a...

The well-known Johansson-Samuelson Theorem proves that, in partial equilibrium, comprehensive income taxation with a uniform tax rate is neutral in terms of investment decisions, if fiscal depreciation allowances coincide with economic depreciation. In this article we show that this result does...