Journal ArticleDOI
A Penny for Your Quotes : Patent Citations and the Value of Innovations
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TLDR
In this paper, the authors put forward patent counts weighted by citations as indicators of the value of innovations, thereby overcoming the limitations of simple counts, and found that simple patent counts are highly correlated with contemporaneous RD, however, the association is within afield over time rather than cross-sectional.Abstract:
The use ofpatents in economic research has been seriously hindered by the fact that patents vary enormously in their importance or value, and hence, simple patent counts cannot be informative about innovative output. The purpose of this article is to put forward patent counts weighted by citations as indicators of the value of innovations, thereby overcoming the limitations of simple counts. The empirical analysis of a particular innovation (Computed Tomography scanners) indeed shows a close association between citation-based patent indices and independent measures of the social value of innovations in that field. Moreover, the weighting scheme appears to be nonlinear (increasing) in the number of citations, implying that the informational content of citations rises at the margin. As in previous studies, simple patent counts are found to be highly correlated with contemporaneous RD however, here the association is within afield over time rather than cross-sectional.read more
Citations
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Journal ArticleDOI
Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations
TL;DR: In this paper, the authors compare the geographic location of patent citations to those of cited patents, as evidence of the extent to which knowledge spillovers are geographically localized, and find that citations to U.S. patents are more likely to come from the U. S., and more likely than coming from the same state and SMSA as cited patents than one would expect based only on the preexisting concentration of related research activity.
ReportDOI
Patent Statistics as Economic Indicators: A Survey
TL;DR: In this paper, the authors present a survey on the use of patent data in economic analysis, focusing on the patent data as an indicator of technological change and concluding that patent data remain a unique resource for the study of technical change.
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Market value and patent citations
TL;DR: Hall et al. as mentioned in this paper explored the usefulness of patent citations as a measure of the "importance" of a firm's patents, as indicated by the stock market valuation of the firm's intangible stock of knowledge.
Journal ArticleDOI
The Increasing Dominance of Teams in Production of Knowledge
TL;DR: It is demonstrated that teams increasingly dominate solo authors in the production of knowledge, suggesting that the process of knowledge creation has fundamentally changed.
Journal ArticleDOI
Interorganizational Endorsements and the Performance of Entrepreneurial Ventures
TL;DR: In this article, the authors investigate how the interorganizational networks of young companies affect their ability to acquire the resources necessary for survival and growth and propose that third parties rely on the prominence of the affiliates of those companies to make judgments about their quality and that young companies "endorsed by prominent exchange partners will perform better than otherwise comparable ventures that lack prominent associates.
References
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Probability and statistics
TL;DR: In this paper, the authors define the notion of conditional probability as the probability of a union of events with respect to a given set of variables, and define a set of classes of variables.
ReportDOI
Patents as Options: Some Estimates of the Value of Holding European Patent Stocks
TL;DR: In this paper, the authors used data on the proportion of patents renewed, and the renewal fees faced by, post World War II cohorts of patents in France, the United Kingdom, and Germany, in conjunction with a model of patent holders' renewal decisions, to estimate the returns earned from holding patents in these countries.
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R&D, Patents, and Productivity
TL;DR: McFertridge as discussed by the authors is an essential reference for specialists in the economics of technological change, which is also a good reference for our own work, as well as many others.