变量

ADF

P

是否平稳

lnEX

−2.546005

0.1239

∆lnEX

−2.457097

0.1443

∆∆lnEX

−4.146212

0.0087***

lnER

−2.087866

0.2512

∆lnER

0.192149

0.9602

∆∆lnER

−5.617611

0.0008***

lnGDP

−3.538304

0.3331

∆lnGDP

−1.876421

0.0845

∆∆lnGDP

−4.774008

0.0030***

lnRD

−1.465

0.7762

∆lnRD

−0.833986

0.7796

∆∆lnRD

−5.339431

0.0010***

lnFDI

−0.378103

0.8913

∆lnFDI

−5.826152

0.0003***

∆∆lnFDI

−4.354805

0.0060***