变量 | (1) | (2) | (3) | (4) | (5) |
L.TFP | 0.877*** (207.610) | 0.863*** (189.258) | 0.863*** (189.027) | 0.831*** (167.743) | 0.647*** (94.136) |
subsidy | 0.005*** (7.402) | 0.003*** (4.575) | 0.007*** (6.436) | 0.008*** (7.711) | 0.007*** (6.468) |
lnl |
| 0.022*** (6.758) | 0.017*** (4.952) | 0.023*** (6.263) | −0.001 (−0.242) |
age |
| 0.001 (0.060) | −0.010 (−0.557) | −0.020 (−1.067) | −0.093 (−1.589) |
leverage |
| −0.045*** (−2.928) | −0.038** (−2.432) | −0.071*** (−4.429) | −0.200*** (−9.643) |
klr |
| 0.001*** (8.000) | 0.000*** (7.430) | 0.001*** (8.869) | 0.001*** (8.515) |
常数项 | 1.695*** (30.646) | 1.737*** (27.491) | 1.759*** (22.095) | 2.182*** (25.895) | 5.151*** (27.065) |
控制时间效应 | 否 | 否 | 是 | 是 | 是 |
控制行业效应 | 否 | 否 | 否 | 是 | 是 |
控制个体效应 | 否 | 否 | 否 | 否 | 是 |
样本量 | 13,107 | 13,107 | 13,107 | 13,107 | 13,107 |
Adj_R2 | 0.801 | 0.802 | 0.807 | 0.811 | 0.836 |