|
on Technology and Industrial Dynamics |
| By: | Harhoff, Dietmar |
| Abstract: | 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 using survey information on German companies complemented with information from the European Patent Office. German firms with inventors based in the US disproportionately benefit from R&D knowledge located in the US. The positive influence on total factor productivity is larger if the research of the inventors results in co-applications of patents with US companies. Moreover, research cooperation with American suppliers also enables German firms to better tap into US R&D, but cooperation with customers and competitors does not appear to aid technology sourcing. The results suggest that the “brain drain” to the US can have upsides for corporations tapping into American know-how. |
| Keywords: | technology sourcing; knowledge spillovers; productivity; open innovation |
| JEL: | O32 O33 |
| Date: | 2012–03–12 |
| URL: | http://d.repec.org/n?u=RePEc:lmu:msmdpa:14327&r=tid |
| By: | Olfa KAMMOUN; Mohieddine RAHMOUNI |
| Abstract: | This paper documents the relationship between appropriation instruments and the innovation activity and other determinants of the innovation behavior of firms in Tunisia. It focuses on studying the factors that determine the appropriation of innovation results like the value of sales of the firms, networking, science-industry linkage, competitive pressure and demand pull. To this end, we propose an econometric analysis of various hypotheses tested in a sample of 586 Tunisian firms. We find significant interaction effects between appropriability and R&D activity. The results confirm that patenting is primarily driven by firm-level factors, not by industry affiliation. Access to external knowledge and firm\'s specific characteristics are the most factors linked to the innovation protection. Firms that use appropriation instruments have a higher probability of investing in R&D than the other ones. Indeed, the capability to integrate external knowledge and performing R&D (networking, science-industry linkage, cooperation with other firms, belonging to a group) is related to the use of appropriation instruments. |
| Keywords: | Appropriation instruments, patents; Innovation; development; absorptive capacity |
| JEL: | O12 O30 |
| Date: | 2013 |
| URL: | http://d.repec.org/n?u=RePEc:grt:wpegrt:2013-01&r=tid |
| By: | Bernstein, Shai (Stanford University) |
| Abstract: | This paper investigates the effects of going public on innovation by comparing the innovative activity of firms that went public with firms that withdrew their IPO filing and remained private. NASDAQ fluctuations during the book-building phase are used as an instrument for IPO completion. Using patent-based metrics, I find that the quality of internal innovation declines following the IPO and firms experience both an exodus of skilled inventors and a decline in productivity of remaining inventors. However, public firms attract new human capital and acquire external innovations. The analysis reveals that going public changes firms' strategies in pursuing innovation. |
| Date: | 2012–10 |
| URL: | http://d.repec.org/n?u=RePEc:ecl:stabus:2126&r=tid |