ZEW Discussion Papers

We analyze a dynamic multi-pollutant problem where abatement costs of several pollutants are not separable. The pollutants can be either technological substitutes or complements. Environmental damage is…

In der vorliegenden Arbeit werden die Bestimmungsgründe von Einstiegslöhnen, sowie das Ausmaß von Lohnrigiditäten und der daraus abgeleiteten Höhe der Lohnaufschwemmung in der Gruppe der Einsteiger empirisch…

Der nachhaltige Sparzwang in Zeiten leerer öffentlicher Kassen wird auch zu Einbußen im Bereich der Kriminalprävention führen, insbesondere im Bereich der Jugend- und der Jugendgerichtshilfe. Die Folgen…

We use a multivariate hazard model for the analysis of data on the timing of ratifications of different ILO conventions by developing countries. The model accounts for two random effects, one at the country…

This paper analyzes the determinants of R&D co-operation among German manufacturing firms. Using firm level data from the Third Community Innovation Survey from Germany, we focus on the role of spillovers in…

Previous empirical studies of job creation schemes in Germany have shown that the average e®ects for the participating individuals are negative. However, we find that this is not true for all strata of the…

In many situations the applied researcher wants to combine different data sources without knowing the exact link and merging rule. This paper introduces a theoretical framework how two different regional…

Impure public goods represent an important group of goods. Almost every public good exerts not only effects which are public to all but also effects which are private to the producer of this good. What is…

Student performance of Germans and immigrants differed greatly in the 2000 PISA study. This paper analyses why the two groups of students performed so differently by estimating educational production…