变量 | 模型(4-4) | 模型(4-5) | 模型(4-6) |
MD | DU | MD | |
DE | 1.421*** (21.55) | 1.030*** (7.90) | 1.236*** (18.33) |
DU | −− | −− | 0.180*** (6.84) |
SI | 0.159 (0.63) | 0.843 (1.69) | 0.007 (0.03) |
AG | 4.606*** (4.62) | −0.073 (−0.04) | 4.619*** (4.95) |
EX | −0.228 (−0.36) | 0.127 (0.10) | −0.251 (−0.43) |
OW | −1.046* (−1.86) | −2.709** (−2.44) | −0.557 (−5.53) |
-cons | 18.611*** (−5.24) | −1.181 (−0.17) | −18.398*** (−5.53) |
个体固定 | 是 | 是 | 是 |
时间固定 | 是 | 是 | 是 |
R2 | 0.644 | 0.205 | 0.689 |
观测数 | 328 | 328 | 328 |
Sobel检验 | −− | z = 5.169 (p = 0.000) | |
中介效应占比(%) | −− | 18.567 |