ADF | Yangtze River Delta | Shanghai | Jiangsu | Zhejiang | Anhui | |||||
Statistic | P value | Statistic | P value | Statistic | P value | Statistic | P value | Statistic | P value | |
| −2.3663 | 0.0002 | −3.4771 | 0.00031 | −2.6342 | 0.0001 | −5.7173 | 0.0000 | −4.3701 | 0.0001 |