During the last 20 years, R&D and innovation activities in the service sector have clearly increased. Especially business services are believed to be one of the main drivers of technical changes and economic progress. Looking at the labour indices calculated over the period from 1982 to 1996 one...

R&D encompasses plenty of activities which are usually summarized under the terms of basic research, applied research and development. Although basic research is often associated with low appropriability it provides the fundamental basis for subsequent applied research and development....

We utilize a new survey experiment to evaluate the existence and degree of financial constraints for R&D in the economy. The experiment does not only allow to deduct the presence of financial constraints, but also to evaluate their economic significance. Using data on German companies, we find...

We investigate how intangible capital in form of intellectual property, such as patents, might mitigate financing constraints. While scholars have already argued that patents might have a signalling value reducing information asymmetries between borrowers and lenders, we quantify the value of...

Properties of dynamic stochastic general equilibrium models can be revealed by either using numerical solutions or qualitative analysis. Very precise and intuition-building results are obtained by working with models which provide closed-form solutions. Closed-form solutions are known for a...