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1.
The paper applies a novel methodology to US and EPO patent data to assess how often the “general grace period” exception is used in the USA and the likely impact of international patent regulations that almost invariably deny such use on the pace of new disclosures in academia. Comparisons of average publication delays of European academic inventors show that the grace period accelerates knowledge communication and that variations are likely to depend on a lack of harmonisation of international legal systems, transaction costs and the presence of a firm among patent assignees. 相似文献
2.
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
3.
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
4.
This paper addresses the question of national differences as regard the number of triadic patents applied for by inventors from several OECD countries. The key idea is to determine whether such differences should be attributed to differences in R&D expenditures or rather to some other reasons, mainly institutional or behavioural ones. With this aim in view, both a macro-economic analysis, based on aggregate data for triadic patent counts and R&D expenditures and a micro-economic analysis based on firms’ data from three selected sectors are performed. In both cases, the methodological focus is made on the introduction, the definition and the estimation of a national index of relative efficiency in standard count data models. The main empirical findings are that there is a strong heterogeneity in terms of performance among European countries and a strong intra-country heterogeneity among sectors. This suggests that, in the field of innovation policies, there is a need for “tailored” solutions reflecting the specificities of each innovation system. Moreover, we show that European countries over-perform the United States in some high-tech sectors where the leadership of American firms is traditionally alleged, whereas European firms fail to keep up in more traditional sectors. 相似文献
5.
Fiona Murray 《Research Policy》2004,33(4):643-659
While science-based entrepreneurial firms are a key feature of the modern economy, our insights into their organization and productivity remain limited. In particular, our understanding of the mechanisms through which academic inventors shape entrepreneurial firms established to commercialize their scientific ideas is based upon a traditional perspective that highlights the importance of human capital. Based on a study of biotechnology firms and their academic inventors, this paper examines the extent and mechanisms through which academic scientists contribute not only human capital but also social capital to entrepreneurial firms. The paper makes two contributions to our understanding of the academic-firm interface: First, it establishes that the social capital of academic scientists is critical to firms because it can be transformed into scientific networks that embed the firm in the scientific community through a variety of mechanisms. Second, the paper argues that an academic inventor’s career plays a critical role in shaping his social capital, thus scientific careers mediate the networks and potential for embeddedness that an academic inventor brings to a firm. Specifically, the foundations of an academic’s social capital can be traced to two sources: The first element that the firm may leverage is the academic’s local laboratory network—a network to current and former students and advisors established by the inventor through his laboratory life. The second form of social capital is a wider, cosmopolitan network of colleagues and co-authors established through the social patterns of collaboration, collegiality and competition that exemplify scientific careers. These findings suggest that scientific careers are central in shaping an academic’s social capital which can be translated into critical scientific networks in which entrepreneurial firms become embedded. 相似文献
6.
The Leiden methodology (LM), also sometimes called the “crown indicator”, is a quantitative method for evaluating the research quality of a research group or academic department based on the citations received by the group in comparison to averages for the field. There have been a number of applications but these have mainly been in the hard sciences where the data on citations, provided by the ISI Web of Science (WoS), is more reliable. In the social sciences, including business and management, many journals and books are not included within WoS and so the LM has not been tested here. In this research study the LM has been applied on a dataset of over 3000 research publications from three UK business schools. The results show that the LM does indeed discriminate between the schools, and has a degree of concordance with other forms of evaluation, but that there are significant limitations and problems within this discipline. 相似文献
7.
In this paper, we investigate the problem of global exponential dissipativity of neural networks with variable delays and impulses. The impulses are classified into three classes: input disturbances, stabilizing and “neutral” type—the impulses are neither helpful for stabilizing nor destabilizing the neural networks. We handle the three types of impulses in a uniform way by using the excellent ideology introduced recently. To this end, we propose new techniques which coupled with more general Lyapunov functions to realize the ideology and it is shown that they are more effective. Exponential dissipativity conditions are established in terms of linear matrix inequalities (LMIs) and these conditions can be straightforwardly reduced to exponential stability conditions. Numerical results are given to show that the obtained conditions are effective and less conservative than the existing ones. 相似文献
8.
Academic inventors as brokers 总被引：4，自引：0，他引：4
Francesco Lissoni 《Research Policy》2010,39(7):843-857
Academic inventors are university scientists who appear as designated inventors of patents owned either by business companies, academic institutions or individuals. We analyse their relationships with co-inventors, who may be either academic colleagues, students, or, very often, industrial researchers. Gould and Fernandez's (1989) taxonomy of ‘brokerage’ roles is adjusted to patent data, and complemented with information drawn from both academic inventors’ publications and replies to a short questionnaire. Only very few academic inventors are found to hold brokerage positions. Such inventors have a large number of patents, a strong publication record and a higher-than-average share of patents held by companies, rather than universities. Relationships of academic inventors with co-inventors from industry are weaker and less likely to be maintained than those with co-inventors from academia. Academic inventors in gatekeeping positions (between university and industry) maintain the strongest ties with all types of co-inventors. 相似文献
9.
Erica R.H. Fuchs 《Research Policy》2010,39(9):1133-1147
This paper explores the role of the state in re-architecting social networks and thereby new technology directions in the United States. It draws on a case study of DARPA's Microsystems Technology Office from 1992 to 2008. Leveraging one of the most radical directorships in DARPA's history, I argue that the perceived “death” of DARPA under Tony Tether was because past analyses, by focusing on the organization's culture and structure, overlooked a set of lasting, informal institutions among DARPA program managers. I find that despite significant changes in the recipients and outcomes of DARPA attentions, these same institutions for directing technology were in place both before and during Tether's directorship. Drawing on these results, I suggest that we must add to technology policy-making a new option—embedded network governance. 相似文献
10.
Looking at micro-data on the networks of inventors of a French science university, we investigate whether the kind of cognitive relationships between researchers influences the geography of their collaborations.The hypothesis we test (and confirm empirically) is that academic knowledge diffuses in a restricted geographic area when the connected researchers belong to epistemic communities, whereas communities of practice entail less localised effects. We also show that institutionally mixed research teams do not impede large knowledge diffusion. 相似文献
11.
This study explores the role of contemporaneous peer effects in driving an academic's involvement with industry. Specifically, we examine the influence of workplace peers and personal collaborators and how these effects are moderated by the career age of the scientist. Moreover, we look at situations in which both types of social influence are incongruent and the academic is faced with “dissonance”. Based on survey data of 355 German academics in the field of biotechnology and publication data from the Science Citation Index Expanded (SCIE), we find that the scientist's involvement with industry increases with the orientation of the scientist's department toward industry (“localized peer effect”). This effect turns out to be moderated by the scientist's age, such that the localized peer effect decreases with age and finally turns negative for very senior scientists. Moreover, we find that a scientist's involvement increases with the industry orientation of the scientist's co-authors (“personal peer effect”), irrespective of the scientist's age. In case both types of social influence are incongruent, younger scientists will revert to localized norms while more experienced scientists will orient themselves more toward their personal collaborators. 相似文献
12.
Today's Edisons or weekend hobbyists: technical merit and success of inventions by independent inventors 总被引：1，自引：0，他引：1
We set out to determine if independent inventors can be considered “heroes” or “hobbyists”, that is, if they produce the most or the least influential inventions in a product category. We study patented inventions by independent and firm-based inventors by comparing patents along four dimensions: Patent citation impact, detail, scope, and maintenance. Examining 225 tennis racket patents granted in the US between 1981 and 1991, we find that independent inventors are a heterogeneous group who generate inventions that are overrepresented both among the most impactful and the least impactful patents. The metrics we develop provide insight into ex ante identification of the importance of inventions. 相似文献
13.
Entrepreneurship involves innovation and uncertainty. We outline a theory of entrepreneurship, which highlights the importance of social networks in promoting innovation and reducing uncertainty. Our findings suggest that this “social” aspect of entrepreneurship increases the probability of entrepreneurial success. The results also lend credence to theories of entrepreneurship that suggest that entrepreneurial opportunities are formed endogenously by the entrepreneurs who create them. We also consider the public policy implications of our findings. 相似文献
14.
In this study, we propose and validate social networks based theoretical model for exploring scholars’ collaboration (co-authorship) network properties associated with their citation-based research performance (i.e., g-index). Using structural holes theory, we focus on how a scholar’s egocentric network properties of density, efficiency and constraint within the network associate with their scholarly performance. For our analysis, we use publication data of high impact factor journals in the field of “Information Science & Library Science” between 2000 and 2009, extracted from Scopus. The resulting database contained 4837 publications reflecting the contributions of 8069 authors. Results from our data analysis suggest that research performance of scholars’ is significantly correlated with scholars’ ego-network measures. In particular, scholars with more co-authors and those who exhibit higher levels of betweenness centrality (i.e., the extent to which a co-author is between another pair of co-authors) perform better in terms of research (i.e., higher g-index). Furthermore, scholars with efficient collaboration networks who maintain a strong co-authorship relationship with one primary co-author within a group of linked co-authors (i.e., co-authors that have joint publications) perform better than those researchers with many relationships to the same group of linked co-authors. 相似文献
15.
Jerry Courvisanos 《Research Policy》2009,38(7):1117-1124
“Political aspects” that enhance, but also undermine, the positive transformational power of public innovation policies are examined. As such, this paper follows Micha? Kalecki in his 1943 paper that identifies the “political aspects” which enhance and undermine the positive transformational power of Keynesian full employment policies. Similarly, this paper provides a policy framework that identifies what government and business support as innovation policies. The role of innovation stems from Schumpeter's long-run perspective, but incorporates the more dynamic cyclical short-term and trend perspectives of Kalecki. This paper critiques the strategy of public innovation policy in general and derives policy implications. 相似文献
16.
We study the structure of the interregional inventor networks in Sweden by examining the residence of inventors and coinventors involved in Swedish patent applications to the European Patent Office. Several factors are found to influence the spatial affinity of regions. We find that spatial affinity extends beyond the region if it has less own R&D-related resources (business R&D, university R&D and patenting); if it is close to the other region and if it is relatively small. The resources of that other region plays a positive role if, in analogue fashion, that region has more R&D-related resources. 相似文献
17.
企业内部发明家合作创新网络中的结构洞对提高发明家的创新绩效有着重要作用,这在西方个人主义文化中得到了广泛论证。而近来的研究表明,在中国的集体主义和儒家传统文化中,填充结构洞才能得到更高的绩效。在此背景下,基于13家中国高新技术企业的专利数据,研究了这些企业内部研发团队的网络结构(社会资本)差异和成员特征(人力资本)差异对结构洞填充的影响。研究发现,团队的网络中心性差异和地位差异均对结构洞的填充产生显著正向影响;团队的知识范围差异与结构洞填充之间存在倒U型关系。 相似文献
18.
Innovative new ventures are at the heart of economic development, particularly when these startups are created by employee, academic, and user innovators. We synthesize across literature streams examining each phenomena to document distinctions between firms originating from different “knowledge contexts.” We then integrate the knowledge context into Teece's (1986) theoretical framework identifying factors that impact a firm's ability to profit from innovation. Doing so allows us to develop stylized facts and predictive propositions pertaining to differences in the innovative contributions, roles played in shaping industrial dynamics and evolution, and performance outcomes for startups stemming from the three entrepreneurial origins. These propositions provide unique insights into the causes of patterns of industry evolution, contribute to theory in the areas of entrepreneurship and industry evolution, and yield important policy and managerial implications. 相似文献
19.
The second French Community Innovation Survey (CIS) indicates that 14% of R&D collaborating firms had to abandon or delay their innovation projects due to difficulties in their partnerships, an outcome which we term “cooperation failures”. Controlling for sample selection on the cooperation decision, our estimates show that firms collaborating with competitors and public research organizations (PROs), especially when they are foreign, are more likely to delay or stop an innovation project because of difficulties encountered in their R&D partnerships. More surprisingly, firms collaborating with their suppliers also face a higher risk of “cooperation failures”. At least for PROs, firms can reduce the risk of “cooperation failures” through previous experiences in partnerships. Larger firms and group subsidiaries are less likely to face “cooperation failures”, and so do firms in industries with a strong appropriability regime. 相似文献
20.
[目的/意义]学术社交网络吸引了众多科研人员参与并使用,对学术社交网络中的学科交互研究有利于促进科研人员利用学术社交网络开展非正式交流及跨学科合作。[方法/过程]文章以ResearchGate(RG)为例,将iSchool成员机构作为研究对象,获取61所iSchool机构成员用户的交互关系数据,并对其中的2798所机构及其间所形成的30393条交互关系数据进行社会网络分析。[结果/结论]从交互数量来看,iSchool成员机构在学术社交网络中的学科交互范围较广,但跨学科影响力有限,其跨学科交互情况反映了目前图情学科领域的跨学科研究趋势和研究热点;从交互关系网络来看,iSchool成员机构整体学科交互关系网络结构较为松散,网络还呈现出iSchool成员机构分别主要与人文与社会科学类和工程与技术科学类的机构产生交互关系的两种趋势。此外,对学术社交网络中交互关系的拓展和学术影响力的提高有利于科研合作的开展和学术声望的提升。 相似文献