| 变量 | LLC检验 | Fisher-ADF检验 | 结论 | ||
| Statistic | p-value | Statistic | p-value | ||
| EQHP | −5.0874*** | 0.0000.0.0000 | 156.7945*** | 0.0000 | 平稳 |
| GP | −4.9723 *** | 0.0000 | 154.8663*** | 0.0000 | 平稳 |
| ISP | −4.7173*** | 0.0000 | 77.9049*** | 0.0000 | 平稳 |
| GPC | −4.4770*** | 0.0000 | 32.3579*** | 0.0000 | 平稳 |
| GPR | −9.3667*** | 0.0000 | 48.7612** | 0.0000 | 平稳 |
| HHI | −8.7737*** | 0.0000 | 31.8645*** | 0.0000 | 平稳 |
| HES | −3.4808*** | 0.0000 | 79.9854*** | 0.0000 | 平稳 |