Abstract
Many of the novel ideas that lead to scientific publications or yield technological advances are the result of collaborations among scientists or inventors. Although various aspects of collaboration networks have been examined, the impact of many network characteristics on knowledge creation and innovation production remains unclear due to the inconsistency of the conclusions from various research studies. One such network structure, called small world, has recently attracted much theoretical attention as it has been suggested that it can enhance the information transmission efficiency among the network actors. However, the existing empirical studies have failed to provide consistent results regarding the effect of small-world network properties on network performance in terms of its scientific and technological productivity. In this paper, using the data on 29 years of journal publications and patents in the field of biotechnology in Canada, the network of scientists’ collaboration activities has been constructed based on their co-authorships in scientific articles. Various structural properties of this network have been measured and the relationships between the network structure and knowledge creation, and quantity and quality of technological performance have been examined. We found that the structure of the co-authorship network of Canadian biotechnology scientists has a significant effect on the knowledge and innovation production, but it produced no impact on the quality of patents generated by these scientists.
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Notes
The OECD definition of biotechnology patents covers the following IPC classes: A01H1/00, A01H4/00, A61K38/00, A61K39/00, A61K48/00, C02F3/34, C07G(11/00, 13/00, 15/00), C07K(4/00, 14/00, 16/00, 17/00, 19/00), C12M, C12N, C12P, C12Q, C12S, G01N27/327, G01N33/(53*, 54*, 55*, 57*, 68, 74, 76, 78, 88, 92).
The first period consists of the scientists who published in 1973–1977, and the last one includes the ones who published in 2001–2005. Therefore, we have a total of 29 networks (Table 1).
Patent claims are a series of numbered expressions describing the invention in technical terms and defining the extent of the protection conferred by a patent (the legal scope of the patent). A high number of patent claims is an indication that an innovation is broader and has a greater potential profitability. It has been frequently suggested and empirically demonstrated (see for example Tong and Frame 1994) that the number of claims is significantly and consistently indicative of higher value patents. The conclusions of most of the papers on patent value reviewed by van Zeebroeck and van Pottelsberghe de la Potterie (2006) are supportive of positive association of the number of claims with patent value. Lanjouw and Schankerman (2004) have suggested that specifically in the biotechnology field the number of claims is the most important indicator of patent quality. Apart from patent claims, patent citations have been also considered as another quality index of patents (e.g. Jang et al. 2011; Fontana et al. 2009). However, one of the major limitations of patent citation data is that more citations could be added by the examiner without even informing the inventor. Alcácer and Gittelman (2006) found a very high magnitude for the examiners’ citation effect where two-thirds of citations on an average patent are being inserted by examiners. This is being widely seen in the USPTO (Lukatch and Plasmans 2002). Hence, we used patent claims as the quality proxy of the patent in this paper.
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Eslami, H., Ebadi, A. & Schiffauerova, A. Effect of collaboration network structure on knowledge creation and technological performance: the case of biotechnology in Canada. Scientometrics 97, 99–119 (2013). https://doi.org/10.1007/s11192-013-1069-6
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DOI: https://doi.org/10.1007/s11192-013-1069-6