| 变量 | (1) | (2) | (3) | (4) |
|---|---|---|---|---|
| l.CS | -0.0366*** | -0.0346*** | -0.0288*** | -0.0276*** |
| (-4.76) | (-4.40) | (-3.78) | (-3.53) | |
| lnsize | 0.0580*** | 0.0557*** | ||
| (6.59) | (6.35) | |||
| lnage | -0.0117*** | -0.0099*** | ||
| (-3.07) | (-2.59) | |||
| lnfinance | 0.0017* | 0.0018** | ||
| (1.87) | (1.97) | |||
| lnHHI | 0.0118*** | 0.0119*** | ||
| (12.52) | (12.60) | |||
| lntech | 0.0112*** | 0.0111*** | ||
| (7.95) | (7.88) | |||
| lnL | 0.0143*** | 0.0128*** | ||
| (4.39) | (3.82) | |||
| lnK | -0.1399*** | -0.1373*** | ||
| (-12.84) | (-12.38) | |||
| lnFDI | 0.1084*** | 0.1057*** | ||
| (13.55) | (12.95) | |||
| lnIgov | -0.0089 | -0.0086 | ||
| (-1.18) | (-1.11) | |||
| _cons | -0.7617*** | -0.6667*** | -0.0589 | 0.0416 |
| (-1650.43) | (-30.77) | (-0.38) | (0.26) | |
| 企业固定效应 | Yes | Yes | Yes | Yes |
| 年份固定效应 | Yes | Yes | Yes | Yes |
| N | 228766 | 217658 | 228757 | 217649 |
| R2 | 0.714 | 0.715 | 0.715 | 0.716 |
