| 
 | (1) | (2) | (3) | (4) | 
| 变量名称 | FC | Inveff | Overinv | Underinv | 
| MA | −0.439*** | −0.008*** | −0.009** | −0.004** | 
| 
 | (−7.83) | (−4.29) | (−2.38) | (−2.22) | 
| FC | 
 | 0.001*** | 0.001* | 0.001*** | 
| 
 | 
 | (4.25) | (1.74) | (6.20) | 
| Age | 0.303*** | −0.009*** | −0.012*** | −0.007*** | 
| 
 | (22.15) | (−18.65) | (−12.03) | (−16.59) | 
| Lev | 6.385*** | −0.002 | 0.010** | −0.014*** | 
| 
 | (114.84) | (−1.03) | (1.99) | (−6.43) | 
| Size | −0.136*** | −0.001*** | −0.001 | −0.002*** | 
| 
 | (−16.07) | (−3.41) | (−1.05) | (−6.08) | 
| Indep | 0.395*** | 0.005 | −0.004 | 0.006 | 
| 
 | (2.81) | (0.98) | (−0.43) | (1.41) | 
| FCF | −14.947*** | 0.016*** | 0.017 | 0.016*** | 
| 
 | (−107.99) | (2.95) | (1.46) | (3.06) | 
| TQB | 0.404*** | 0.002*** | 0.001*** | 0.001*** | 
| 
 | (42.40) | (6.05) | (2.58) | (5.57) | 
| Growth | −0.079*** | 0.021*** | 0.032*** | 0.009*** | 
| 
 | (−3.25) | (16.87) | (15.05) | (7.13) | 
| Dual | −0.077*** | 0.001** | 0.002 | 0.000 | 
| 
 | (−4.17) | (2.39) | (1.41) | (0.62) | 
| Return | −0.058** | −0.001 | 0.001 | −0.004*** | 
| 
 | (−2.52) | (−1.43) | (0.79) | (−5.92) | 
| ROA | −7.159*** | −0.008 | 0.003 | −0.016*** | 
| 
 | (−41.14) | (−1.35) | (0.25) | (−2.77) | 
| Cons | 0.660*** | 0.070*** | 0.073*** | 0.083*** | 
| 
 | (3.59) | (11.47) | (5.53) | (14.81) | 
| Year | Yes | Yes | Yes | Yes | 
| Industry | Yes | Yes | Yes | Yes | 
| N | 20318 | 20318 | 7478 | 12840 | 
| Adj-R2 | 0.787 | 0.106 | 0.132 | 0.121 |