| 债务融资成本 | 股权融资成本 | ||||
| 基准回归 | 非线性回归 | 基准回归 | 非线性回归 | ||
EP | −0.005 | 0.106* | 0.026*** | 0.078*** | ||
| (−1.63) | (1.85) | (11.42) | (6.23) | ||
EPsq |
| −0.107** |
| −0.051*** | ||
|
| (−1.99) |
| (−4.28) | ||
N | 3449 | 3449 | 3449 | 3449 | ||
r2 | 0.078 | 0.081 | 0.083 | 0.088 | ||
F | 4.493 | 5.716 | 21.175 | 20.520 | ||