| GARCH-MIDAS模型 | 湖北碳市场 | 广东碳市场 | |||||
| RMSE | MAE | MAPE | RMSE | MAE | MAPE | ||
| 单因素 | RV | 2.185 | 1.285 | 0.994 | 1.820 | 1.070 | 1.052 |
| GEPU | 2.174 | 1.320 | 1.115 | 1.770 | 1.005 | 0.960 | |
| CNEPU | 1.973 | 1.149 | 1.067 | 1.814 | 0.904 | 1.072 | |
| 多因素 | RV + GEPU | 1.824 | 1.018 | 1.060 | 1.704 | 0.855 | 0.890 |
| RV + CNEPU | 1.727 | 0.943 | 0.884 | 1.677 | 0.872 | 0.899 | |
| CNEPU + CNEPU | 1.849 | 0.932 | 1.047 | 1.791 | 1.054 | 0.801 | |
| RV + CNEPU + CNEPU | 1.400 | 0.733 | 0.609 | 0.380 | 0.296 | 0.804 | |