This paper investigates whether firms innovate persistently or discontinuously over time using an innovation panel data set on German manufacturing and service firms for the period 1994-2002. We find that innovation behaviour is permanent at the firmlevel to a very large extent. Using a dynamic...

This paper studies the impact of environmental innovation on employment growth using firm-level data for 16 European countries and the period 2006-2008. It extends the model by Harrison et al (2008) in order to distinguish between employment effects of environmental and non-environmental product...

We study a two-stage R&D project with an abandonment option. Two types of uncertainty influence the decision to start R&D. Demand uncertainty is modelled as a lottery between a proportional increase and decrease in demand. Technical uncertainty is modelled as a lottery between a decrease and...

Der Beitrag untersucht, inwieweit hinter der oft konstatierten Investitionsschwäche der europäischen Wirtschaft eine Strukturverschiebung von materiellen zu immateriellen Investitionen steht. Da letztere nur zum Teil unter den Investitionsbegriff der Volkswirtschaftlichen Gesamtrechnung...

This paper examines the links between innovation and productivity in service enterprises. For this purpose, we use micro data from the Community Innovation Survey 2008 in Germany, Ireland and the United Kingdom, and estimate an augmented structural model. Our results indicate that innovation in...