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Supercedes 15-03 We employ a unique data set to examine the spatial clustering of private R&D labs. Instead of using fixed spatial boundaries, we develop a new procedure for identifying the location and size of specific R&D clusters. Thus, we are better able to identify the spatial locations of...
Persistent link: https://www.econbiz.de/10012935396
Superceded by 16-25. This working paper supersedes WP 12-22, WP 11-42, and WP 10-33. We employ a unique data set to examine the spatial clustering of private R&D labs, and, using patent citations data, we provide evidence of localized knowledge spillovers within these clusters. Jaffe,...
Persistent link: https://www.econbiz.de/10012937041
We employ a unique data set to examine the spatial clustering of private R&D labs, and, using patent citations data, we provide evidence of localized knowledge spillovers within these clusters. Jaffe, Trajtenberg, and Henderson (1993, hereafter JTH) provide an aggregate measure of the importance...
Persistent link: https://www.econbiz.de/10012937534
This paper examines the trends in geographic localization of knowledge spillovers via patent citations, considering US patents from the period of 1976-2015. Despite accelerating globalization and widespread perception of the \death of distance," our multi-cohort \matched-sample" study reveals...
Persistent link: https://www.econbiz.de/10011775811
This paper examines the trends in geographic localization of knowledge spillovers via patent citations, extracting multiple cohorts of new sample US patents from the period of 1976-2015. Despite accelerating globalization and widespread perception of the "death of distance," our matched-sample...
Persistent link: https://www.econbiz.de/10012115878
There is substantial empirical evidence that innovation is geographically concentrated. Unlike what is generally …
Persistent link: https://www.econbiz.de/10014143983
The geography of innovation describes the importance of proximity and location to innovative activity. As part of what … sufficiently so that the discussion can be organized around certain stylized and commonly accepted facts: • Innovation is spatially …, and not easily amenable to measurement. • Local universities are necessary but not sufficient for innovation. • Innovation …
Persistent link: https://www.econbiz.de/10014025168
their ability to convert local academic research into local commercial innovation. We develop and test the hypothesis that … the presence of a large, local, R&D-intensive firm an anchor tenant enhances the regional innovation system such that …
Persistent link: https://www.econbiz.de/10014051105
This paper challenges the key assumption in "idea based growth models" that innovation rents ultimately reward the … bulk of the innovation rents and are generally the residual claimant. We develop a model that separates invention from … innovation where new ideas are a costless spillover from profit motivated corporate R&D aimed at improving existing production …
Persistent link: https://www.econbiz.de/10013089419
In his recent discussion of regional innovation systems (RIS), Philip Cooke outlines the two starkly different … interpretations of regional innovation systems. (Regional Innovation Systems, Asymmetric Knowledge and the Legacies of Learning, Draft … 2007). He notes in his review, "Clearly, there are two kinds of regional innovation occurring in these examples. The first …
Persistent link: https://www.econbiz.de/10014210256