变量

ADF统计值

1%临界值

5%临界值

P

结论

lpeople

2.841013

−2.664853

−1.955681

0.9980

非平稳

lex

3.381700

−2.664853

−1.955681

0.9995

非平稳

lim

2.535675

−2.664853

−1.955681

0.9959

非平稳

D(lp)

−4.094801

−4.416345

−3.622033

0.0195

平稳

D(lex)

−3.778165

−4.416345

−3.622033

0.0369

平稳

D(lim)

−4.009146

−4.416345

−3.622033

0.0232

平稳