Table 2.

Indicators for measuring CEEIE.

Categories	Description	Indicators	Unit	Data sources
Input	Labor input	Employment	Ten thousand people	China Labor Statistical Yearbook
	Capital input	Capital stock	Hundred million Yuan	Statistical Yearbook of the Chinese Investment in Fixed Assets, China Statistical Yearbook
	Energy input	Energy consumption	Ten thousand tons of standard coal	China Energy Statistical Yearbook
Output	Desirable output	Gross value of industrial output	Hundred million Yuan	China Statistical Yearbook
	Undesirable output	Carbon dioxide emissions	Ten thousand tons	Statistical Yearbook and Bulletin of each province, China Energy Statistical Yearbook, National Bureau of Statistics
Environment	Economic development	GDP per capita	Yuan	China Statistical Yearbook
	Industrial structure	The ratio of GDP of tertiary industry to GDP	%	China Statistical Yearbook
	Energy consumption structure	The ratio of coal consumption to energy consumption	%	China Energy Statistical Yearbook
	Government regulation	The ratio of government investment in environmental governance to GDP	%	China Statistical Yearbook on Environment
	Technological innovation	The ratio of R&D expenditure to GDP	%	China Statistical Yearbook
	Opening up	The ratio of total import and export to GDP	%	China Statistical Yearbook