| 变量 | 包含趋势项 | LLC检验 | ADF-F检验 |
| Y | 是 | (−5.9041, 0) | (91.3100, 0.0289) |
| X | 是 | (−4,5818, 0) | (45.9888, 0.0091) |
| Z1 | 是 | (−5.7478, 0) | (84.5170, 0) |
| Z2 | 是 | (−2.6279, 0.0043) | (35.8366, 0.0947) |
| ΔZ2 | 否 | (−4.0922, 0) | (46.5361, 0) |
| Z3 | 是 | (−3.2073, 0.0073) | (39.6356, 0.0813) |
| ΔZ3 | 否 | (−6.9127, 0) | (73.3917, 0.0300) |
| Z4 | 是 | (−5.2176, 0.0035) | (53.8366, 0.0537) |
| ΔZ4 | 否 | (−7.0232, 0) | (81.3517, 0) |
| X × Z1 | 是 | (−4,5818, 0) | (45.9888, 0.0091) |
| X × Z2 | 是 | (−5.9127, 0.0315) | (57.0031, 0.0166) |
| X × Z3 | 是 | (−2.1364, 0.0317) | (28.0783, 0.1714) |
| ΔX × Z3 | 否 | (−4,1778, 0.0039) | (48.1090, 0.0297) |
| X × Z4 | 是 | (−5.0836, 0.0091) | (51.3679, 0.0516) |
| ΔX × Z4 | 否 | (−7,8513, 0) | (95.0917, 0.0138) |