ZEW Discussion Papers

The difference between girls and boys academic performance is a major issue on both sides of the Atlantic. Do boys and girls fair better with a teacher of their own gender? This paper investigates the presence…

In this paper we analyse the effect of R&D co-operation on firms' innovation performance. We investigate the effect of past co-operation on current sales of innovative products, distinguishing between products…

This paper assesses the economic impacts of linking the EU Emission Trading Scheme (ETS) to emerging schemes beyond Europe, in the presence of a post-Kyoto agreement in 2020. Simulations with a numerical…

Real options investment theory predicts current investment falls as uncertainty about market returns increases. In the case of R&D investment, which is usually considered an irreversible form of investment, this…

Real Options Theory, Uncertainty, R&D, Censored Regression�t (R&��@ubsi
Ðå€ may����uce ����et f����res affecting private R&D investment caused by incomplete appropriability of knowledge and financial…

In einer Reihe empirischer Studien sind die Wirkungen von Arbeitsbeschaffungsmaßnahmen (ABM) für Teilnehmer in Deutschland nach unterschiedlichen Gesichtspunkten mikroökonometrisch evaluiert worden. Auf der…

We analyze the wage effects of employment breaks of women entering motherhood using a novel within-firm matching approach where mothers' wages upon return to the job are compared with those of their female…

In diesem Beitrag wird auf der Basis von Paneldaten für die westdeutschen Bundesländer untersucht, ob und in welchem Maße der demographische Wandel sowie die unterschiedlichen politischen…

This literature review analyses the impacts of the EU ETS on competitiveness focussing on existing simulation studies. We have identified the choice of the reference scenario as the most critical issue for an…