on the effects of the patent stock on profitability. The data base is a representative sample of German manufacturing … patent stock has a strong and robust effect on profitability. …

empirical study on the determinants of innovative activity measured by patent applications are presented. A sample of German … innovation, i.e. weakly controlled managers show a higher innovation propensity. However, the higher the leverage the more …

patent quantity is driven by knowledge exchange rather than joint R&D. Firms engaged in joint R&D, on the other hand, receive … more forward citations per patent indicating that joint R&D enhances patent quality. In light of literature on strategic … patenting, our results further suggest that knowledge creation alliances lead to patents that are filed to protect valuable …

Many studies investigate the relationship between R&D expenditures as an input and patents as an intermediate product … or output of a knowledge production function. We suggest that the productivity of research in patent production functions … to patentable knowledge, and development happens after the initial research phase that may have led to a patent. Instead …

In this paper we analyse the relationship between export and innovation activities of German service sector companies … Schumpeterian hypothesis of export activities being mainly driven by innovation activities. Factor endowment theories are only … branches. Moreover, allowing for simultaneity we find that export activities do not enforce innovation activities. …

export effective. We investigate data from the ZEW Innovation survey of 4,786 firms in the manufacturing and service … determinant for the export performance of firms. Does this mean that intense local user-producer interaction always leads to … preferences. In order to generate global innovation, an international firm should look for the global common denominator of …

We explore the tail of patented invention value distributions by using value estimates obtained directly from patent … holders. The paper focuses on those full-term German patents of the application year 1977 which were held by West German and U ….S. residents. The most valuable patents in our data account for a large fraction of the cumulative value over all observations …

We estimate the determinants of various types of product innovation. Knowledge spillovers from rivals have a positive … exert no such independent influence on drastic innovation activities. The results support the hypothesis that establishments …

main focus is the direct impact of subsidies on R&D and the indirect effect on innovation output measured by patent … schemes. For this, a treatment effects analysis is conducted in a first step. The results are implemented into the estimation … of a patent production function. It turns out that both purely privately financed R&D and publicly induced R&D show a …

subsequent years. For patents, we find that industry funding increases their quality measured by patent citations. …University research provides valuable inputs to industrial innovation. It is therefore not surprising that private …