| 模型 | 变量 | 系数 | t值 |
| 随机前沿引力模型 |
| 60.264*** | 1.047 |
|
| 0.815*** | 1.855 | |
|
| 0.356*** | 6.650 | |
|
| −7.970*** | −0.820 | |
|
| 0.381** | 7.996 | |
|
| −1.979*** | −12.438 | |
|
| −0.921*** | −7.944 | |
|
| 0.449* | 3.211 | |
| 贸易非效率模型 |
| 22.156*** | 5.150 |
|
| −0.761*** | −1.758 | |
|
| −2.137*** | −4.957 | |
|
| −0.368** | −0.976 | |
|
| −0.636** | −1.371 | |
|
| −0.071*** | −4.271 | |
|
| −4.862*** | −5.348 | |
| 参考量 |
| 3.054*** | 5.589 |
|
| 0.904*** | 16.343 | |
|
| −1055.42 | ||
|
| 191.563 | ||