Research Article
Research on the Impact of Environmental Regulation on Total Factor Energy Effect of Logistics Industry from the Perspective of Green Development
Table 6
Stationary test of major variables.
| Variable | LLC inspection | IPS inspection | Fisher-ADF inspection | Horizontal sequence | First difference | Horizontal sequence | First difference | Horizontal sequence | First difference |
| LnLFEE | −1.833 (0.5497) | −1.127 (0.0056) | 8.675 (0.0000) | 9.953 (0.0294) | 30.5823 (0.2820) | 137.9068 (0.0000) | LnINV | −0.191 (0.4243) | −3.442 (0.0003) | −0.9171 (0.1795) | 3.114 (0.0000) | 84.6759 (0.1970) | 93.0724 (0.004) | LnHUC | −2.569 (0.1560) | 5.7949 (0.0051) | 3.8132 (0.9999) | −2.371 (0.0840) | 45.7005 (0.1370) | 78.4194 (0.0554) | LnLDL | 4.924 (0.0000) | −9.953 (0.0294) | 2.8799 (0.9980) | 2.311 (0.0104) | 40.7137 (0.0890) | 69.1712 (0.0000) |
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Note: is statistically significant at 1%, is statistically significant at 5%, and is statistically significant at 10%. |