Because China has become one of the largest applicants of PCT patents, it is of interest to compare the quality of Chinese and non-Chinese applications. We extend a quality index based on internationally comparable citation data from international search reports (ISR) to consider foreign,...

China recently surpassed the USA as the greatest global source of patent applications. However, without internationally comparable measures of patent quality it remains questionable whether China's patent expansion constitutes the rise of a new technological superpower. Our novel quality index...

We develop an index that compares the quality of Patent Cooperation Treaty (PCT) applications by considering citations generated by International Search Reports (ISRs). In its most restrictive variation, i.e. excluding citations from the home country and self-citations, the ISR index is not...

Innovation processes within corporations increasingly tap into international technology sources, yet little is known about the relative contribution of different types of innovation channels. We investigate the effectiveness of different types of international technology sourcing activities...

This study examines the consequences of loan denials for the investment performance of small and medium-sized German enterprises. As a consequence of a loan denial, innovative companies experience a smaller drop in the share of actual to planned investment than non-innovative companies. The...

This study investigates how in-house R&D as well as access to national and foreign knowledge sources influences the productivity of Chinese firms. For our main analysis we use data for 1,140 patenting firms listed at mainland China stock exchanges over the time-period 2001-2010. In-house R&D...

This study investigates how in-house R&D as well as access to national and foreign knowledge sources influences the productivity of Chinese firms. For our main analysis we use data for 1,140 patenting firms listed at mainland China stock exchanges over the time-period 2001-2010. In-house R&D...

Innovation processes within corporations increasingly tap into international technology sources, yet little is known about the relative contribution of different types of innovation channels. We investigate the effectiveness of different types of international technology sourcing activities...

This paper analyzes how companies of immigrant entrepreneurs in knowledgeintensive industries differ from companies of native entrepreneurs with respect to start-up characteristics, firm survival and innovative performance. I focus on immigrants from the "recruitment countries" of south and...

This paper analyzes the importance of equity finance for the R&D activity of small and medium-sized enterprises. We use information on almost 6000 German SMEs from a company survey. Using the intensity of banking competition at the district level as instrument to control for endogeneity, we find...