Ein moderner und nachhaltiger Sozialstaat braucht eine gesunde Mischung aus staatlicher Fürsorge und Eigenverantwortung. Die Hartz-Reformen versuchten, die richtige Mischung mit dem Prinzip des Förderns und Forderns in der Grundsicherung herzustellen. Zahlreiche Menschen sind seither nicht...

Social assistance to the poor is increasingly subject to compulsory work requirements in Germany. Municipalities have started to offer temporary employment in their job-creation companies to claimants who are able to work. These claimants earn wages and social insurance contributions if they...

According to conventional wisdom internationally mobile capital should not be taxed or should be taxed at a lower rate than labour. An important underlying assumption behind this view is that there are no market imperfections, in particular that labour markets clear competitively. At least for...

OPTIMThe conservative central banker has come under attack recently. Explicitly modeling the interaction of a trade union with monetary policy, it has been argued that the standard solution to the inflationary bias in monetary policy might actually be welfare reducing if the trade union has an...

Many countries suffer from persistently high unemployment rates. The scope for labour market reforms is often limited to measures that hurt neither shareholders nor workers. This paper develops a policy proposal, which allows the government to reduce wage costs without changing the income...

This paper characterises the domestic tax systems which yield Pareto-efficient outcomes for a two-country world economy in which each country uses distortionary taxes. Such outcomes are compared with the Nash equilibria of the world economy when each country uses its domestic tax system to...

Workfare proposals concentrate on the work incentives for welfare recipients, thus focusing on the labor supply side. This paper analyzes the effects workfare has on labor demand when the labor market is unionized. As workfare reduces the number of recipients of public financial assistance, a...

According to the existing literature, capital taxes should not be imposed in the presence of optimal profit taxation in either unionised or competitive labour markets. We show that this conclusion does not hold for an economy with both competitive and unionised sectors, where the competitive...

This survey reviews the recent literature on the double-dividend hypothesis of environmental taxes and discusses some recent extensions of the standard model such as the distributional consequences and the importance of the non-separability assumption between consumption goods and environmental...