Do patent bubbles exist? Test on innovation situation in China’s A - share market

Ruoya Wang; Yaodong Zhou

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Do patent bubbles exist? Test on innovation situation in China’s A - share market

机译：是否存在专利泡泡？中国A股市场创新局势试验

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China’s expanding patent applicants reflects the results of the innovation catch-up strategy, but there have been persistent doubts about patent bubbles. Using SADF, GSADF and BSADF tests, this paper found that the phenomenon of the patent bubble is not common during the observation period in China’s listed companies from 2007 to 2019, and different degrees of patent bubbles occurred only in four industries. China’s technology market is still in the stage of innovation accumulation and catch-up.

机译：中国扩大专利申请人反映了创新追赶战略的结果，但专利泡沫存在持续疑虑。本文使用SADF，GSADF和BSADF测试，发现专利泡沫的现象在2007年至2019年的中国上市公司的观察期内并不常见，并且仅在四个行业中发生不同程度的专利泡沫。中国的技术市场仍处于创新积累和追赶的阶段。

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《E3S Web of Conferences》 |2021年第a期|共4页
作者
Ruoya Wang; Yaodong Zhou;
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Do patent bubbles exist? Test on innovation situation in China’s A - share market

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