Table 1 Descriptive statistics of variables
VARIABLES | Obs | Mean | Std. Dev | Min | Max |
|---|---|---|---|---|---|
GTI_Quan | 3,432 | − 1.601 | 1.600 | − 6.309 | 3.515 |
GTI_Qua | 3,432 | − 2.399 | 1.694 | − 6.545 | 2.891 |
HSR | 3,432 | 0.471 | 0.499 | 0.000 | 1.000 |
ED | 3,432 | 10.433 | 0.732 | 0.000 | 13.056 |
GS | 3,432 | − 6.232 | 1.081 | − 8.962 | 0.000 |
FD | 3,432 | 1.120 | 0.296 | 0.000 | 2.676 |
FI | 3,432 | 1.351 | 0.784 | 0.000 | 3.832 |
ID | 3,432 | − 2.120 | 0.912 | − 9.712 | 1.303 |
HQT | 3,432 | 17.484 | 23.425 | 0.000 | 144.580 |