Table 9 Robustness test results.
Variable name | Variable substitution (adoption intensity) | Winsorization test | PCA-based robustness test | |||
|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | |
Capital endowment | 9.516*** (10.66) | 7.661*** (9.13) | 0.994*** (0.166) | |||
Physical capital | 0.612 (1.26) | 1.026** (2.24) | 0.242* (0.138) | |||
Natural capital | 2.499** (2.16) | 2.977** (2.55) | 0.354* (0.19) | |||
Human capital | 2.724*** (6.17) | 1.656*** (3.73) | 0.132* (0.068) | |||
Economic capital | 1.71*** (4.24) | 1.965*** (5.29) | 0.303*** (0.06) | |||
Social capital | 1.876*** (4.15) | 1.05*** (2.6) | 0.125** (0.054) | |||
Information capital | 1.369*** (3.35) | 1.259*** (3.36) | 0.194*** (0.06) | |||
Control variables | Controlled | Controlled | Controlled | Controlled | 已控制 | 已控制 |
LRx2(F) | 170.33 | 194.46 | 145.29 | 173.78 | 86.47 | 157.66 |
Log likelihood | -508.48*** | -496.42*** | -625.76*** | -611.52*** | -655.17*** | -619.59*** |
Pseudo R2 | 0.1435 | 0.1638 | 0.104 | 0.1244 | 0.0619 | 0.1129 |
N | 1008 | 1008 | 1008 | 1008 | 1008 | 1008 |
