Patent Statistics as an Innovation Indicator? Evidence from the Hard Disk Drive Industry

IF 1.5 4区经济学 Q2 ECONOMICS

Japanese Economic Review Pub Date : 2019-09-08 DOI:10.1111/jere.12234

Mitsuru Igami, Jai Subrahmanyam

引用次数: 17

Abstract

We assess the usefulness of patent statistics as an indicator of innovation, using a direct measure of innovation in the hard disk industry (1976–1998). Three findings emerge: (i) patents “predict” innovations better than a random guess, and a simple refinement makes them more useful; (ii) conditional on actually innovating, conglomerates and larger firms patent more than specialised startups and smaller firms; and (iii) patent reforms seem to make the patent–innovation relationship nonstationary. These results suggest that researchers should use caution when comparing patents of different types of firms and across years.

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专利统计作为创新指标?来自硬盘驱动器行业的证据

我们评估专利统计数据作为创新指标的实用性，使用硬盘行业(1976-1998)的创新的直接措施。有三个发现:(1)专利比随机猜测更能“预测”创新，简单的改进使专利更有用;(ii)以实际创新为条件，企业集团和大公司比专门的初创公司和小公司申请更多的专利;(3)专利改革似乎使专利与创新的关系变得非平稳。这些结果表明，研究人员在比较不同类型公司和不同年份的专利时应该谨慎。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Japanese Economic Review ECONOMICS-

CiteScore

2.70

自引率

0.00%

发文量

期刊介绍： Started in 1950 by a group of leading Japanese economists under the title The Economic Studies Quarterly, the journal became the official publication of the Japanese Economic Association in 1959. As its successor, The Japanese Economic Review has become the Japanese counterpart of The American Economic Review, publishing substantial economic analysis of the highest quality across the whole field of economics from researchers both within and outside Japan. It also welcomes innovative and thought-provoking contributions with strong relevance to real economic issues, whether political, theoretical or policy-oriented.