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Die Innovationsaktivität von Unternehmen ist eine wichtige Komponente des Wirtschaftswachstums. Konsumenten profitieren von Neuentwicklungen, die zu einer größeren Auswahl an Produkten und Dienstleistungen führen. Ebenfalls können durch die Erschließung zusätzlicher Märkte neue...
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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...
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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...
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This paper analyses the influence of in-house R&D and external knowledge acquisition on the total factor productivity (TFP) of listed Chinese firms for the time period 2001-2010. We find a quantitatively important positive effect of in-house R&D. The achieved level of technological...
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