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1.
We investigate the relationship between patenting activity and the population size of metropolitan areas in the United States over the last two decades (1980-2001). We find a clear superlinear effect, whereby new patents are granted disproportionately in larger urban centers, thus showing increasing returns in inventing activity with respect to population size. We characterize this relation quantitatively as a power law with an exponent larger than unity. This phenomenon is commensurate with the presence of larger numbers of inventors in larger metropolitan areas, which we find follows a quantitatively similar superlinear relationship to population, while the productivity of individual inventors stays essentially constant across metropolitan areas. We also find that structural measures of the patent co-authorship network although weakly correlated to increasing rates of patenting, are not enough to explain them. Finally, we show that R&D establishments and employment in other creative professions also follow superlinear scaling relations to metropolitan population size, albeit possibly with different exponents. 相似文献
2.
《Research Policy》2023,52(1):104649
Stars hold a large portion of organizational knowledge, and their sudden absence may have non-trivial consequences for firms. In this study, I investigate what happens to the knowledge of star inventors following their absence. In particular, I consider the composition of stars' ties with coinventors and examine how it affects the future use of stars' knowledge (i.e., patents). Using the death of star inventors as an exogenous cause for their absence in firms, I find that the use of a star's patents in a firm's subsequent inventive efforts declines following the star's death. The results also indicate that when star inventors frequently collaborate with coinventors, the negative effect of stars' absence on the future use of their knowledge is somewhat alleviated. Further, the presence of central inventors in stars' collaboration networks increases the relative use of stars' knowledge in future inventions. The findings inform managers about conditions that favor “passing the torch” of knowledge from stars to their peers. 相似文献
3.
Tufool Alnuaimi 《Research Policy》2012,41(9):1534-1543
We examine the impact of local and foreign labor mobility in India by modeling one regional and one global network, each of which captures the inter-organizational mobility of inventors. Our analysis of the regional network shows that, within India, the productivity of inventors does not improve when they move from foreign to Indian organizations. In the global network, we find that Indian organizations remain located in the periphery as a result of employing a small number of inventors from foreign organizations. However, in the instances when inventors are hired from foreign organizations, they are able to produce patents with a higher impact in comparison to inventors hired from other Indian organizations. Furthermore, when the inventors are hired from abroad, the impact of their patents is even higher in comparison. The implications of these findings for innovation and policy in the emerging economy context are discussed. 相似文献
4.
《Research Policy》2023,52(1):104631
This paper studies the relationship between migration and the productivity of high-skilled workers, as captured by inventors of international patent applications. Using machine learning techniques to uniquely identify inventors across patents, we are able to track the migration patterns of nearly one million individual inventors across countries. Migrant inventors account for more than nine percent of inventors in our sample. The econometric analysis seeks to explain the recurring finding in the literature that migrant inventors are more productive than non-migrant inventors. We find evidence that migrant inventors become about twenty-three percent more productive after having migrated. The disambiguated inventor data are openly available. 相似文献
5.
《Research Policy》2022,51(2):104416
Do informal social ties connecting inventors across distant places promote knowledge flows between them? To measure informal ties, we use a new and direct index of social connectedness of regions based on aggregate Facebook friendships. We use a well-established identification strategy that relies on matching inventor citations with citations from examiners. Moreover, we isolate the specific effect of informal connections, above and beyond formal professional ties (co-inventor networks) and geographic proximity. We identify a significant and robust effect of informal ties on patent citations. Further, we find that the effect of geographic proximity on knowledge flows is entirely explained by informal social ties and professional networks. We also show that the effect of informal social ties on knowledge flows is greater for new entrepreneurs or ‘garage inventors’, for older or ‘forgotten’ patents, and for flows across distant technology fields. It has also become increasingly important over the last two decades. 相似文献
6.
纳米科学与技术之间的联系:基于学术型发明人的分析 总被引：3，自引：1，他引：2
本文聚焦于从事纳米研究的学术型发明人,即大学中同时具有国际期刊论文作者和专利发明人双重身份的研究人员(author-inventor),他们是联结纳米科学与纳米技术的纽带.通过比较学术型发明人和非学术型发明人的论文数量、被引频次和H指数,本文发现学术型发明人的研究绩效显著高于纯学术研究者,并且在高产作者和高影响力作者行列中占有更高的比例.本文使用负二项回归模型分析了专利活动对于学术型发明人研究绩效的作用,发现专利数量对于论文数量呈正向作用,但对论文质量有副作用.最后,本文给出了相关政策建议. 相似文献
7.
C. Conti M.L. Mancusi F. Sanna-Randaccio R. Sestini E. Verdolini 《Research Policy》2018,47(10):1996-2009
This paper investigates the fragmentation of the EU innovation system in the field of renewable energy sources (RES) by estimating the intensity and direction of knowledge spillovers over the years 1985–2010. We modify the original double exponential knowledge diffusion model proposed by Caballero and Jaffe (1993) to provide information on the degree of integration of EU countries’ RES knowledge bases and to assess how citation patterns changed over time. We show that EU RES inventors have increasingly built “on the shoulders of the other EU giants”, intensifying their citations to other member countries and decreasing those to domestic inventors. Furthermore, the EU strengthened its position as source of RES knowledge for the US. Finally, we show that this pattern is peculiar to RES, with other traditional (i.e. fossil-based) energy technologies and other radically new technologies behaving differently. Our results provide suggestive, but convincing evidence that the reduction in fragmentation emerged as a result of the EU support for RES taking mainly the form of demand-pull policies. 相似文献
8.
Despite a substantial body of research investigating the market significance of inventions by independent inventors, relatively little attention has been devoted to understanding their technological significance. A recent study conducted by [Dahlin, K., Taylor, M., Fichman, M., 2004. Today's Edisons or weekend hobbyists: technical impact and success of inventions by independent inventors. Res. Policy 33, 1167-1183] on the tennis racket industry shows that independent inventors are a heterogeneous group which includes both “heroes” who contribute substantially to technological progress and “hobbyists” who make only a marginal contribution. What is not asked - and therefore not explained - is why this distinction arises. In this paper, we focus on the type of prior technological knowledge (in terms of technological specialization and diversity) applied by independent inventors and their corporate counterparts as a factor explaining differences in technological impact. Our empirical setting is the field of medical equipment technology. We find that independent inventors are more sensitive to the negative effects of technological diversity than their corporate counterparts. Furthermore, our study reveals that technological specialization pays off more for independent inventors than for their corporate counterparts. Therefore, those independent inventors who apply low degrees of diversity and high degrees of specialization are capable of reaching the same level as or even outperforming their corporate counterparts, thus becoming “heroes”. Based on our findings, we discuss implications for research and corporate practice. 相似文献
9.
To successfully generate more valuable technologies from accessing basic research knowledge, firms need to combine institutional and individual level bridges to universities and research institutes active in basic research. This combination is particularly important when the new technology builds on scientific prior art. While mobile inventors are needed to transfer and translate basic knowledge into new technologies, partnerships provide the commitment, resources and incentive structure to integrate this basic research knowledge more effectively into the firm’s innovation process, thus improving the value capture from mobile inventors. Our findings in the micro-electronics field illustrate the importance of jointly accounting for firm and inventor level industry-science links to assess their effectiveness and provides evidence on complementarity from using both. Furthermore, identifying the scientific nature of the technology projects critically determines whether the combination of these links allow to capture more value. 相似文献
10.
Karin Hoisl 《Research Policy》2007,36(5):619-636
This paper analyses the causality between inventor productivity and inventor mobility. The results show that the level of education has no influence on inventor productivity. Making use of external sources of knowledge, on the contrary, has a significant effect on productivity. Finally, firm size has a positive impact on productivity. Firm size also influences inventor mobility, although negatively. Whereas existing research implicitly assumes causality to point in one direction, this study ex ante allows for a simultaneous relationship. To deal with the expected endogeneity problem, instrumental variables techniques (IVREG and IVPROBIT) will be employed. Results show that mobile inventors are more productive than non-movers. Whereas a move increases productivity, an increase in productivity decreases the probability to observe a move. 相似文献
11.
《Research Policy》2022,51(4):104485
The mobility of inventors leaves behind their patented inventions at sourcing firms, yet there is little scholarly insight into how firms handle those intellectual properties. We investigate this important issue by developing a framework of tacit-codified knowledge interdependence. We theorize that tacit and codified knowledge offer the intellectual and legal pillars of corporate inventions, which complement each other in value creation. Inventor mobility decouples the two pillars and reduces the maintenance likelihood of the left-behind patents. The negative impact is greater for inventions that are complex or rely less on internal prior art because the tacit knowledge loss is more destructive and unrecoverable. However, when inventors move to competing or litigious target firms, the relationship between mobility and patent maintenance becomes less negative or even turns positive because the left-behind patents can be leveraged to hedge against the risk of knowledge leakage. Applying a two-stage Coarsened Exact Matching approach to construct a sample of 36,204 U.S. patents with comparable leaving and staying inventors from public firms between 1983 and 2010, we find strong evidence supporting our framework. Our findings highlight the intricate interdependence of tacit and codified knowledge in corporate inventions and add to the literatures on inventor mobility and intellectual property management. 相似文献
12.
《Research Policy》2023,52(1):104655
We investigate the impact of deadly terrorist attacks on inventor productivity and mobility in the U.S. During the five-year window after such events, nearby firms generate fewer and less impactful inventions. Moreover, their inventors typically exhibit a post-attack decline in their patent production, unless they move to a distant company (which some tend to do after an attack). Firms' financial constraints and inventor talent appear to provide channels underlying our productivity and mobility findings, respectively. These results provide novel insights about the impact of shocks that distort the invention process and promote the mobility and reallocation of inventors among firms. 相似文献
13.
People use social media to help them solve problems and enhance performance. Users may engage in diverse social interactions online, increasing their knowledge base through both weak and strong ties. In this study we investigate the impact of social networks on job performance, focusing on knowledge quality and diversity based on social network theory and the knowledge-based view. The empirical analysis reveals that the strength of social network ties is strongly associated with knowledge quality in offline interactions, while social network diversity is associated with knowledge quality in online interactions. Knowledge quality acquired from social network has a significant impact on both creativity and productivity of job performance in the workplace. However, knowledge diversity acquired from diverse social network interactions is strongly associated with creativity, but not with productivity. The results of this study increase our understanding of the knowledge sourcing behaviors of workers. 相似文献
14.
Kjersten Bunker Whittington 《Research Policy》2018,47(2):511-526
Collaborative relationships are an important anchor of innovative activity, and rates of collaboration in science are on the rise. This research addresses differences in men’s and women’s collaborative positioning and collaborator characteristics in science, and whether network influences on scientists’ future productivity may be contingent on gender. Utilizing co-inventor network relations that span thirty years of global life science patenting across sectors, geographic locations, and technological background, I present trends of men’s and women’s involvement in patenting and their collaborative characteristics across time. Amidst some network similarities, women are less likely to connect otherwise unconnected inventors (brokerage) and have greater status-asymmetries between themselves and their co-inventors. In multivariate models that include past and future activity, I find that some network benefits are contingent on gender. Men receive greater returns from network positioning for brokerage ties, and when collaborating with men. Women benefit from collaborating with women, and are more likely to collaborate with women, but both men and women collaborate with mostly men. I discuss the implications of these results for innovative growth, as well as for policies that support men’s and women’s career development. 相似文献
15.
从知识的视角,一项职务成果就是一个由显性知识和隐性知识构成的知识包,分属于科研单位和发明人控制,因此,是否赋予发明人主导职务成果转化,既是一个重大的理论问题,也是一个重大的政策问题。论文首先提出研究假设,即由于显性知识与隐性知识的控制权分离,导致转化主体分别与研发主体、消费主体、融资主体分别出现技术距离、市场距离和融资距离;而且这三类距离越大,越需要发明人来主导职务成果转化;随后,采用案例研究方法,以甲醇制烯烃成果转化案例进行实证检验。论文的实证结论显示,采用创业分拆方式来推进发明人主导职务成果转化,即把发明人及其职务成果整体孵化转化为企业性质的转化主体,由发明人主导职务成果转化,消除了这三类距离,促进职务成果顺利转化。 相似文献
16.
《Research Policy》2023,52(7):104794
This article examines whether and to what extent the Uniform Trade Secrets Act (UTSA) affects technology spillovers between focal firms (i.e., receivers of spillovers) and peers (i.e., senders of spillovers). I find that technology spillovers from peers located in states adopting the UTSA are 27 % to 51 % lower than technology spillovers from peers located in states not adopting the UTSA. Focal firms whose peers come from the UTSA states have fewer migrant inventors than firms whose peers come from non-UTSA states. 相似文献
17.
We analyze the acquaintances of a sample of academic inventors and their paired controls to investigate the contribution of social networks to the generation of inventive ideas in academe. Prior to patenting, inventors work in networks of similar dimension and structure as those of their colleagues who do not invent. The ego-networks of the inventors are however more cohesive (denser), a circumstance that is often seen as associated to the exchange of more fine-grained information and to a greater climate of trust which facilitates long-term relationships and learning. Over time, both inventors and non-inventors extend their networks and become more central. In general, we found no evidence that after patenting inventors isolate or close their networks. 相似文献
18.
《International Journal of Information Management》2017,37(4):313-316
In an increasingly globalized and hyper connected business environment, using knowledge strategically is often critical for competitive performance. This article is motivated to illuminate the notion of strategic knowledge management (SKM) in organizations. In this regard, executives need to develop an informed understanding of what types of organizational knowledge (and how much) can be ‘structured’ and/or allowed to ‘proliferate’ in order to sustain both work productivity and innovation capacity toward a harmonious conceptualization of strategic knowledge in their organizations. This conceptual paper is based on analysing certain exemplars of why organizations need to put greater emphasis on the equivalence between codification and personalization in the context of strategic knowledge management. Our explanations on managing strategic knowledge through different examples provide insights and pitfalls that organizations must be aware of and are as follows. Firstly, we argue that an exclusive emphasis on codification or personalization runs the risk of ‘knowledge structuration’ or ‘knowledge proliferation’ respectively in an organization’s strategic knowledge management. Secondly, executives should continuously realize the need to emphasize on equivalence (or congruence) between codification and personalization aspects of SKM in order to keep enduring work productivity and innovation capacity in organizations. Thirdly, we argue that SKM initiatives that prodigiously focus on either codification or personalization can lead to pitfalls despite plenty of managerial interventions. We further believe that our proposed ideas will be worthwhile considerations for executives/leaders responsible for strategy, IT and innovation divisions of the organization to determine whether its organization’s knowledge engine is running smoothly, and if not, where to direct their energy to yield long term and robust outcomes. 相似文献
19.
《International Journal of Information Management》2017,37(6):718-725
Employees are the human capital that contributes to the success of high-performance and sustainable organizations. In the digital economy, organizations need to be competitive and differentiate them self through the knowledge they detained. This requires the adoption of innovative solutions that valorize and recognize workers who invest their time to keep up-to-date with areas of knowledge that are relevant to the organization. Indeed, organizations are investing in retaining skilled workers, in particular senior workers whose knowledge and experience are a valuable asset that should be passed to younger co-workers. One way to address these concerns is to create conditions to promote a feeling of employee’s wellness in their work environment.In this paper, the two perception of well-being at the workplace (i.e. physical and social) are combined with gamification techniques and analyzed how it might help employees to acquire the expertise (“soft and hard-skills”) they need to improve their curriculum. This is particularly relevant for older adults to whom the feeling of fulfilment and recognition is much appreciated. The case study relates to the Active@Work project. The proposed solution incorporates an “intelligent behavior” to keep the user aware of their well-being status, triggering notifications to mitigate the risk of fatigue or stress at work. The solution also provides support for workers to engage in new and rewarding activities, where his/her knowledge and experience is considered as a relevant contribution, promoting in this way employee recognition and social well-being at the workplace. Team management and tutoring of younger co-workers by older adults will be, together with a Skill Development Tool, some of the innovative features within the project. 相似文献
20.
In rapidly changing regional economies, less innovative European regions (henceforth referred to as lagging-behind regions) must actively work to reduce the gap between them and knowledge-intensive regions. Recent literature has stressed that the lack of efficient institutional settings reduces the opportunities of local knowledge spillover and increases the need for local organisations to exploit collaborative networks to better support their innovation performance. In this light, since increasing attention has recently been directed at the role of inter-regional collaborations, we have measured the capacity of local innovative organisations embedded in lagging-behind European regions to develop internal and external regional inventors’ networks by exploring their collaborative patenting processes. Then, a seven-year panel dataset (2002–2008) was organised using patents data at a regional level to validate the research hypothesis that collaborations, and specifically with highly innovative (knowledge-intensive) regions, positively affect the innovation performances of lagging-behind regions. Finally, the implications of EU policies for supporting lagging-behind regions are discussed. 相似文献