The flat income tax has become increasingly popular recently, yet its implementation is limited to Eastern Europe. We analyse the distributional and efficiency effects of flat tax scenarios for Western European countries. Our simulations show that flat tax rates required to attain revenue...

In Germany, there is an ongoing debate about how to increase the efficiency of the social security system. The aim of this paper is to simulate different financing systems for Germany with its typical Conservative welfare state regime. For our analysis, we rely on the European static...

In der Debatte über eine Reform des deutschen Einkommensteuersystems wird immer wieder die Einführung einer Flat Rate Tax gefordert. Üblicherweise bestehen solche Vorschläge aus den Elementen Verbreiterung der Bemessungsgrundlage, Erhöhung des Grundfreibetrags und Einführung eines (relativ...

The flat income tax has become increasingly popular recently, yet its implementation is limited to Eastern Europe. We analyse the distributional and efficiency eects of flat tax scenarios for Western European countries. Our simulations show that flat tax rates required to attain revenue...

The Great Recession did not only affect European countries to a varying extent, its impact on national labour markets and on specific socio-economic groups in those markets also varied greatly. Institutional arrangements such as employment protection, unemployment insurance benefits and minimum...

We develop and estimate a model of jointly optimal income taxes for different types of income. Compared to standard optimal tax formulas, optimal schedular income tax rates additionally depend on cross-elasticities between tax bases capturing fiscal externalities. We discuss two applications:...

In this paper, we define a new class of richness measures. In contrast to the often used headcount, these new measures are sensitive to changes in rich persons' income and therefore allow for a more sophisticated analysis of richness. We demonstrate the application of these new measures to...

Rising income inequalities are widely debated in public and academic discourse. In this paper, we contribute to this debate by proposing a new family of measures of unfair inequality. To do so, we acknowledge that inequality is not bad per se, but that its underlying sources need to be taken...

Rising income inequalities are widely debated in public and academic discourse. In this paper, we contribute to this debate by proposing a new family of measures of unfair inequality. To do so, we acknowledge that inequality is not bad per se, but that its underlying sources need to be taken...

Empirical evidence on distributional preferences shows that people do not judge inequality as problematic per se but that they take the underlying sources of income differences into account. In contrast to this evidence, current measures of inequality do not adequately reflect these normative...