Table 3 Descriptive statistics of variables for 282 Chinese cities from 2010 to 2021.
Type | Variable | N | Mean | Std. Dev. | Min | Max |
|---|---|---|---|---|---|---|
Dependent variable | RR | 3384 | 0.3493 | 0.1417 | 0.0043 | 0.9403 |
Core explanatory variable | NQP | 3384 | 0.0508 | 0.0483 | 0.0054 | 0.7624 |
Control variables | ES | 3384 | 16.5923 | 0.9437 | 13.8155 | 19.8793 |
PS | 3384 | 5.8677 | 0.7166 | 3.1355 | 8.0734 | |
IS | 3384 | 3.7052 | 0.2497 | 2.2783 | 4.4293 | |
GS | 3384 | −1.7175 | 0.4340 | −3.1263 | 0.3955 | |
OU | 3384 | 9.7524 | 2.4305 | 0.6931 | 14.9469 |