Table 2.
Variables and data sources.
| Variable | Definition | Data source |
|---|---|---|
| GI | Logarithm of the number of green patents | CNRDS database |
| DPP | Logarithm of the number of NPC suggestions on the environment | China Environment Yearbook |
| IPP | Logarithm of the number of environment-related CPPCC proposals | China Environment Yearbook |
| EPP | Logarithm of the number of unofficial organizations in the environmental category | China Civil Affairs Statistical Yearbook |
| ER | Ratio of GDP to energy consumption | China Energy Statistical Yearbook |
| PGDP | Logarithm of regional GDP per capita | National Bureau of Statistics |
| UR | Urbanization rate | National Bureau of Statistics |
| ST | The proportion of tertiary industry to GDP | National Bureau of Statistics |
| FDI | Logarithm of the number of foreign direct investment | National Bureau of Statistics |
| ECS | The proportion of coal consumption to total energy consumption | China Energy Statistical Yearbook |