variables

First order differential

ADF-fisher

Fisher-ADF

GDP

−4.502931** (0.0114)

−6.7873*** (0.0001)

FIN

−4.442559*** (0.0127)

−5.3827*** (0.0014)

STR

−4.385072** (0.0152)

−5.0838*** (0.0029)

TRANS

−3.859828** (0.0404)

−4.9595*** (0.0040)

ENE

−5.571559** (0.0013)