منابع مشابه
Market Value and Patent Citations
The goal of this paper is to explore the usefulness of patent citations as a means to tackle the huge heterogeneity of patented innovations in determining the stock market value of firms, and to further validate the informational content of patent citations in terms of economic impact. This project was made possible by the creation of a comprehensive data file on patents and citations for 1963-...
متن کاملThe dynamics of patent citations
The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation "inflation." JEL: C1, O3.
متن کاملThe Market Value of Blocking Patent Citations
There is a growing literature that aims at assessing the private value of knowledge assets and patents. It has been shown that patents and their quality as measured by citations received by future patents contribute significantly to the market value of firms beyond their R&D stocks. This paper goes one step further and distinguishes between different types of forward citations patents can recei...
متن کاملnon-corrective approach to pronunciation
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
15 صفحه اولPatent Citations as a Measure of Knowledge Flows: the Influence of Examiner Citations
Analysis of patent citations is a core methodology in the study of knowledge diffusion. However, citations made by patent examiners have not been separately reported, adding unknown noise to the data. We leverage a recent change in the reporting of patent data showing citations added by examiners. The magnitude is high: two-thirds of citations on the average patent are inserted by examiners. Fu...
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ژورنال
عنوان ژورنال: Prague Economic Papers
سال: 2009
ISSN: 1210-0455,2336-730X
DOI: 10.18267/j.pep.353