We analyze optimal income taxes with deductions for work-related or consumptive goods. We consider two cases. In the first case (called a complex tax system) the tax authorities can exactly distinguish between consumptive and work-related expenditures. In the second case (called a simple tax...

This paper contributes to the debate about the optimal design of tax-transfer systems. Based on the theory of optimal taxation, combined with microsimulation and microeconometric techniques we derive the welfare function which makes the current German tax and transfer system for single women...

We examine optimal taxation and social insurance if insurance markets are imperfect. This requires the development of a theory of labor supply under uncertainty. We show that the case for social insurance is not generally reinforced by adverse selection in insurance markets as social insurance...

In this paper we exploit a cohort-specific pension reform to estimate the causal labour market effects of changes in the financial incentives to retire. In particular, we analyze the effects of the introduction of cohort-specific deductions for early retirement on female retirement, employment...

The global imbalances of the 2000s and the recent global financial crisis are intimately connected. Both originate in the combination of economic policies adopted by the two key economies, the US and China. Global financial markets served as a transmission belt, both during the boom as during...

The recent extensive package introduced by the Commission is the most comprehensive reinforcement of economic governance in the EU and the euro area since the launch of the Economic and Monetary Union. Broader and enhanced surveillance of fiscal policies, but also macroeconomic policies and...

The current instruments in the EU to deal with debt and liquidity crises include among others the European Financial Stability Facility (EFSF) and the European Financial Stabilisation Mechanism (EFSM). Both are temporary in nature (3 years). In terms of an efficient future crisis management...

In an open-shop model of trade union membership with heterogeneity in risk attitudes, a worker's relative risk aversion can affect the decision to join a trade union. Furthermore, a shift in risk attitudes can alter collective bargaining outcomes. Using German panel data (GSOEP) and three novel...

We empirically analyze the heterogeneous welfare effects of unemployment insurance and social assistance. We estimate a structural life-cycle model of singles' and married couples' labor supply and savings decisions. The model includes heterogeneity by age, education, wealth, sex and household...

In many federations, fiscal equalization schemes soften fiscal imbalances across the member states. Such schemes usually imply that the member states internalize only a small fraction of the additional tax revenue from an expansion of the state-specific tax bases, while the remainder of the...