变量 | 模型(1) | 模型(2) | 模型(3) | 模型(4) |
LogZY | 0.123*** | 0.209*** | 0.207*** | 0.190* |
(2.760) | (3.998) | (4.021) | (1.874) | |
LogYC |
| −0.303*** | −0.222** | −0.228** |
| (−2.872) | (−2.003) | (1.874) | |
LogGZ |
|
| −0.133** | −0.135** |
|
| (−2.052) | (−2.050) | |
LogZC |
|
|
| 0.031 |
|
|
| (0.193) | |
c | −3.577*** | −2.310*** | −2.413*** | −2.427*** |
(−15.867) | (−4.699) | (−4.971) | (−4.921) | |
样本量 | 90 | 90 | 90 | 90 |
F检验值 | 7.618*** | 8.247*** | 7.104*** | 5.278*** |
F检验P值 | 0.0070 | 0.0005 | 0.0003 | 0.0008 |