Table 5.

Environmental variable definition.

Type of variable	Variable name	Variable definition
Environment	Financial support	The ratio of the local financial expenditure on science and technology to the public budget revenue
	Infrastructure score	The entropy right method is used to construct the infrastructure application and development indicators supporting the development of digital economy into an infrastructure index, with provincial annual data
	Monetary policy	The annual M2 growth rate for that year
	IP protection	The ratio of the contract amount of the technology market of each province to the GDP of each province in the current year is divided into provincial annual data
	HhiD	The Herfindahl–Hirschman Index of the industry