@article {30003,
	title = {Spatiotemporal dynamics of the patent race: empirical evidence from listed companies in China},
	journal = {Asian Journal of Technology Innovation},
	volume = {30},
	year = {2022},
	pages = {106-133},
	abstract = {This quantitative study was based on data from 910 Chinese listed companies, spanning from 2002 to 2017. It finds that the geographic distribution for patent competition is spatially dispersed from China{\textquoteright}s Southeast Coast to the Northwest. This demonstrates that companies in Western and Northern China are increasingly innovative. In terms of time, the number of patents that enterprises produce has trended upward since 2010, and patent competition among enterprises is intensifying. Moreover, there is a strategic interaction between neighbouring companies in patent competition. Invention patents have a positive spillover effect, while non-invention patents have a negative spillover effect. This study also shows that the larger the scale of the enterprise and the higher its operating income, the more patents it has. The influence of enterprise age on total patents and invention patents is inversely related. Additionally, the more concentrated the company{\textquoteright}s equity, the fewer the patents, and the higher the industry concentration, the greater the number of patents. Further, regional economic growth has a positive effect on total patents, while the regional unemployment rate has a negative effect on invention patents.},
	url = {https://www.tandfonline.com/doi/full/10.1080/19761597.2020.1830813},
	author = {Jiafeng Gu}
}
