| 变量 | (1) | (2) | (3) | (4) | (5) | (6) |
| PCDI | UPCDI | RPCDI | PCDI | UPCDI | RPCDI | |
| lnIFID | 0.4019*** | 0.3642*** | 0.4188*** |
|
|
|
| (36.9186) | (37.2771) | (36.0125) |
|
|
| |
| lnIFIG |
|
|
| 0.2991*** | 0.2701*** | 0.3115*** |
|
|
|
| (31.9136) | (31.7409) | (31.2526) | |
| Constant | 7.8844*** | 8.4233*** | 7.1978*** | 8.4630*** | 8.9517*** | 7.8011*** |
| (136.7265) | (162.7855) | (116.8512) | (173.7241) | (202.3302) | (150.5424) | |
| N | 341 | 341 | 341 | 341 | 341 | 341 |
| R-squared | 0.815 | 0.818 | 0.808 | 0.767 | 0.765 | 0.760 |
| FE | YES | YES | YES | YES | YES | YES |