Type of variables | Name of variables | data source | Description of specific indicators | Representative symbols |
Explained variables | Provincial gross domestic product | National Bureau of Statistics | Per capita actual GDP | PGDP |
Core explanatory variables | Digital finance | Institute of Digital finance Peking University | Digital inclusive financial index | DFI |
Intermediary variables | New urbanization | National Bureau of Statistics, Wind | Entropy method | URB |
Control variables | Industrial structure | National Bureau of Statistics | Added value of secondary and tertiary industries/GDP | INS |
Informatization level | National Bureau of Statistics | Total post and telecommunications business/GDP | INL | |
Research and development investment intensity | National Bureau of Statistics | R & D expenditure/financial expenditure | RDI | |
Dependence on foreign trade | National Bureau of Statistics | Foreign trade/GDP | DFT | |
Road network density | National Bureau of Statistics | Total mileage of highway/total area of this area | RND |