This paper describes FiFoSiM, the integrated tax benefit microsimulation and CGE model of the Center of Public Economics at the University of Cologne. FiFoSiM consists of three main parts. The first part is a static tax benefit microsimulation module. The second part adds a behavioural component...

The introduction of a flat tax is supposed to have several advantages. Administration and compliance costs are reduced, as well as incentives for tax evasion. Furthermore, positive employment and growth effects are expected. Despite these advantages, a flat rate tax is not very popular in most...

When comparing tax benefit systems across Europe, Germany is usually regarded as a country with a high level of taxes and contributions which is often seen as a main challenge for the economic performance of the welfare state. In this paper, we analyse the progressivity and redistribution...

This documentation describes FiFoSiM, the integrated tax benefit microsimulation and CGE model of the Center of Public Economics at the University of Cologne. FiFoSiM consists of three main parts. The first part is a static tax benefit microsimulation module. The second part adds a behavioural...

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 person's income and therefore allow for a more sophisticated analysis of richness. We demonstrate the application of these new measures to...

Im Vorfeld der Bundestagswahl 2013 findet in Deutschland eine intensive Debatte über die Umverteilungswirkung der Einkommensteuer statt. Insbesondere mit der Senkung des Spitzensteuersatzes auf zwischenzeitlich 42 und nun 45 Prozent wird eine überproportionale Bevorzugung hoher Einkommen...

Mircrosimulation models (MSM) and Computable General Equilibrium models (CGE) have both been widely used in policy analysis. The combination of these two model types allows the utilisation of the advantages of both types. The aim of this paper is to describe the state-of-the-art in simulation...

The economic literature often argues that basic income schemes and low wage subsidies to employees are just special cases of a negative income tax. In this debate, it is ignored that these concepts target different population subgroups. This paper investigates the different target groups and the...