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Regression results of threshold model.
| Threshold variable | Variable | The coefficient | T-value | P-value |
|---|---|---|---|---|
| PI | DFI (PI ≤ 12.8800) | 0.0013674*** | 9.25 | 0.000 |
| DFI (12.8800 < PI ≤ 25.5200) | 0.0009518*** | 6.45 | 0.000 | |
| DFI (25.5200 < PI) | 0.0007088*** | 4.18 | 0.000 | |
| FS | DFI (FS ≤ 0.2100) | 0.001817*** | 7.88 | 0.000 |
| DFI (0.2100 < FS) | 0.0020752*** | 8.93 | 0.000 |
