专利性
质量(理念)
度量(数据仓库)
引用
专利申请
引文分析
营销
计算机科学
精算学
业务
知识产权
法学
政治学
专利法
数据库
图书馆学
哲学
认识论
作者
Petra Moser,Joerg Ohmstedt,Paul W. Rhode
出处
期刊:Management Science
[Institute for Operations Research and the Management Sciences]
日期:2018-04-01
卷期号:64 (4): 1926-1940
被引量:52
标识
DOI:10.1287/mnsc.2016.2688
摘要
A growing empirical literature uses patent citations as a quality-adjusted measure for innovation, despite concerns about the validity of this measure. This paper links patents with objective measures of improvements in the quality of patented inventions—measured through performance in field trials for hybrid corn—to examine three potential factors that influence citations: (1) improvements in performance, (2) citing practices of patent attorneys, and (3) citing practices of patent examiners. This analysis reveals that citations are robustly correlated with performance, which confirms that citations are a useful quality-adjusted measure for innovation. The citing practices of patent attorneys and examiners, however, also influence citations. Patent attorneys cite early patents, which help establish the patentability of an invention; this practice may inflate citation counts for early patents, particularly for inventions that have only recently become patentable. Attorneys also add self-citations; our analysis indicates that self-citations are an indicator of follow-on invention. By comparison, examiner-added citations are typically unrelated to improvements in performance or follow-on invention. Data and the online appendix are available at https://doi.org/10.1287/mnsc.2016.2688 . This paper was accepted by Lee Fleming, entrepreneurship and innovation.
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