Die Infrastrukturinvestitionen nehmen seit Jahren ab. Insbesondere die Gemeinden haben drastisch weniger investiert, nicht wegen eines geringeren Bedarfs, sondern wegen erheblicher Finanzprobleme in der Vergangenheit. Über den langen Zeitraum sind auch Planungs- und Genehmigungskapazitäten...

This paper analyzes the effect of agglomeration economies on firms' total factor productivity. We propose the use of a control function approach to overcome the econometric issue inherent to the two-stage approach commonly used in the literature. Estimations are conducted separately for four...

Trade theory and economic geography suggest that the removal of trade barriers is likely to bring about more economic specialisation and potentially more diverse development paths between countries and regions. Thus, the deepening and extending European integration should be accompanied by an...

Seit langem hat es keine umfassende Reform im deutschen Steuersystem gegeben. Vor der Bundestagswahl und angesichts deutlicher und wohl auch längerfristiger gesamtstaatlicher Überschüsse werden zunehmend Vorschläge zur Entlastung der Steuerzahler gemacht. Dabei sind viele Aspekte zu...

How much additional tax revenue can the government generate by increasing labor income taxes? In this paper we provide a quantitative answer to this question, and study the importance of the progressivity of the tax schedule for the ability of the government to generate tax revenues. We develop...

In this paper we argue that very high marginal labor income tax rates are an effective tool for social insurance even when households have preferences with high labor supply elasticity, make dynamic savings decisions, and policies have general equilibrium effects. To make this point we construct...