ZEW Discussion Papers

Wir führen ein Regionenmatching durch, welches für alle Kreise in Deutschland die nächsten Nachbarn bestimmt, die ähnliche regionale Rahmenbedingungen für die Länge individueller Arbeitslosigkeitsphasen der SGB…

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…

This paper analyses the performance of real estate securities and their relationship to other asset classes as well as to consumer price inflation in an international comparison over the period from 1990 to…

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…