Table 1 Descriptive statistics of the variables.
Variables | Variable definitions | Obs | Mean | Sd | Min | Max |
|---|---|---|---|---|---|---|
GIP | Logarithm of the number of green invention patent applications per 10,000 people | 3920 | 0.2663 | 0.4301 | 0.0000 | 3.3367 |
GUP | Logarithm of the number of green utility model patent applications per 10,000 people | 3920 | 0.3054 | 0.4230 | 0.0000 | 3.2059 |
ESER | 1 for pilot cities of ESER; 0 for non-pilot cities of ESER | 3920 | 0.0531 | 0.2242 | 0.0000 | 1.0000 |
GROWTH | Real growth rate of GDP | 3920 | 10.5778 | 4.3213 | − 19.3800 | 32.9000 |
GOV | Ratio of fiscal general budget expenditure to GDP | 3920 | 0.1787 | 0.0965 | 0.0426 | 1.4852 |
POP | Natural logarithm of the urban population | 3920 | 5.8772 | 0.6944 | 2.8685 | 8.1362 |
HC | Number of college students per 10,000 people | 3920 | 175.1077 | 231.5238 | 0.0000 | 1311.2407 |
FIN | Ratio of deposit and loan balances of financial institutions to GDP | 3920 | 2.2265 | 1.1410 | 0.4369 | 21.3018 |
FDI | Ratio of total foreign direct investment to GDP | 3920 | 0.0185 | 0.0193 | 0.0000 | 0.2101 |
ROAD | Per capital road area | 3920 | 4.5211 | 5.8660 | 0.1812 | 73.0424 |
