Andreas Peichl

The Redistributive Effects of Tax Benefit Systems in the Enlarged EU

How do different components of the tax and transfer systems affect disposable income inequality? This article explores the redistributive effects of different tax benefit instruments in the enlarged European Union (EU) based on two approaches. Inequality analysis based on the sequential accounting approach suggests that benefits are the most important factor reducing inequality in the majority of countries. The factor source decomposition approach, however, suggests that benefits play a negligible role and sometimes even contribute slightly positively to inequality. On the contrary, here taxes and social contributions are by far the most important contributors to income inequality reduction. The authors explain these partly contradictory results with the different normative focus of the two approaches and show that benefits have other aims than redistribution.

Welfare regimes and welfare state outcomes in Europe

Welfare state typologies are generally based on the institutional design of welfare policies. In this paper we analyse whether such typologies also persist when they are applied to effective redistributive outcomes of welfare states’ tax and transfer policies. In contrast to the widespread use of macro indicators, our empirical analysis relies on internationally comparable microdata in order to account for the distribution of resources across households. We perform a hierarchical cluster analysis and check whether the classical typology for Western European welfare states reproduces the typical patterns when it comes to effective economic outcomes. We find that the established welfare regimes not only differ in their welfare state institutions as is known, but also in their economic outcomes. In particular, we identify the social-democratic, conservative, liberal and southern welfare regimes. Belgium and the Netherlands emerge as hybrid cases lying between the social-democratic and conservative model.

Does Size Matter? The Impact of Changes in Household Structure on Income Distribution in Germany

In Germany, two observations can be made over the past 20 years: First, income inequality has been constantly increasing while, second, the average household size has been declining dramatically. The analysis of income distribution relies on equivalence-weighted incomes which take into account household size. Therefore, there is an obvious link between these two developments. The aim of the paper is to quantify how the trend towards smaller households has influenced the change in income distribution. In order to do so, we are using a decomposition of changes in inequality measures over time allowing for a separation between wage and demographic effects respectively. We propose similar decompositions for the change in poverty and richness as well and compare them with results that were obtained by a re-weighting procedure. Our results show that the income gap would also have increased without the demographic trend. But its level would be lower than it actually is. In addition, the demographic effect turns out to be larger for incomes before tax and benefits.

Documentation FiFoSiM: Integrated Tax Benefit Microsimulation and CGE Model

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 component to the model: an econometricaly estimated labour supply model. The third module is a CGE model which allows the user of FiFoSiM to assess the global economic e¤ects of policy measures. Two specific features distinguish FiFoSiM from other tax benefit models. First, the simultaneous use of two databases for the tax benefit module and second, the linkage of the tax benefit model to a CGE model.

Politicians’ outside earnings and electoral competition

This paper deals with the impact of electoral competition on politicians´ outside earnings. We propose a simple theoretical model with politicians facing a tradeoff between allocating their time to political effort or to an alternative use generating outside earnings. The model has a testable implication stating that the amount of time spent on outside work is negatively related to the degree of electoral competition. We test this implication using a new dataset on outside earnings of members of the German federal assembly. Taking into account the potential endogeneity of measures of political competition that depend on past election outcomes, we find that politicians facing low competition have substantially higher outside earnings.

The Benefits and Problems of Linking Micro and Macro Models - Evidence from a Flat Tax Analysis

Microsimulation (MS) and Computable General Equilibrium models (CGE) have both been widely used in policy analysis. Their combination allows the utilisation of the advantages of both types. The aim of this paper is to describe the state-of-the-art in simulation analysis and to illustrate the benefits and problems of linking micro and macro models by analysing flat tax reform proposals for Germany. Taking feedback effects into account has important implications for the evaluation of tax reforms. The analysis shows that a personal income flat tax can indeed overcome the fundamental equity efficiency trade-off while simultaneously increasing the tax revenue. However, this result does not hold for a flat tax combining a personal income flat tax with a corporate cash flow flat tax, even when allowing for an ex-post loss in revenue, as the top of the distribution still gains the most.

Automatic Stabilizers, Economic Crisis and Income Distribution in Europe

This paper investigates to what extent the tax and transfer systems in Europe protect households at different income levels against losses in current income caused by economic downturns like the present financial crisis. We use a multi country micro simulation model to analyse how shocks on market income and employment are mitigated by taxes and transfers. We find that the aggregate redistributive effect of the tax and transfer systems increases in response to the shocks. But the extent to which households are protected differs across income levels and countries. In particular, there is little stabilization of disposable income for low income groups in Eastern and Southern European countries.

Does Tax Simplification Yield More Equity and Efficiency? An Empirical Analysis for Germany

This paper investigates the impact of tax simplification on various indicators of the efficiency of the tax system and on the distribution of income. The analysis is based on a simulation model (FiFoSiM) using German income tax and household survey microdata. We model tax simplification as the abolition of a set of deductions from the tax base included in the German income tax system. We find that this form of tax base simplification leads to a reduction in the use of professional tax advice, a more equitable income distribution and an increase in tax revenue. If these measures are combined with a reduction of income tax rates to preserve revenue neutrality, the effects depend on the type of rate schedule adjustment. The combination with a flat rate tax implies redistribution in favour of very high incomes, and an overall increase in income inequality. Efficiency effects in terms of changes in marginal tax rates and labor supply effects are mixed. The combination with a rate schedule adjustment which preserves the directly progressive rate schedule yields a tax reform which reduces the inequality of after tax incomes. We conclude that tax simplification may improve the efficiency of the tax system without increasing inequality of after tax income.

The Impact of Redistributive Policies on Inequality in OECD Countries

Recent discussions about rising inequality in industrialized countries have triggered calls for more government intervention and redistribution. Due to obvious behavioral effects caused by redistribution, it is however not clear whether redistributional policies are indeed able to combat inequality. This paper contributes to this relevant research question by using different contextual country-level data sources to study inequality trends in OECD countries since the 1980s. We first investigate the development of inequality over time before analyzing the question of whether governments can effectively reduce inequality. Different identification strategies, using fixed effects and instrumental variables models, provide some evidence that governments are capable of reducing income inequality despite countervailing behavioral adjustments. The effect is stronger for social expenditure policies than for progressive taxation, which seems to trigger more inequality increasing indirect behavioral effects. Our results also suggest that the use of secondary inequality data should be handled with caution.

Multidimensional affluence: Theory and applications to Germany and the US

This article suggests multidimensional affluence measures for the top of the distribution. In contrast to commonly used top income shares, they allow the analysis of the extent, intensity and breadth of affluence in several dimensions within a common framework. We illustrate this by analysing the role of income and wealth as dimensions of multidimensional well-being in Germany and the US in 2007 as well as for the US over the period 1989–2007. We find distinct country differences with the country ranking depending on the measure. While in Germany wealth predominantly contributes to the intensity of affluence, income is more important in the US.