Variable

PP unit root test

Order of integration

I()

Levels

1^st Difference

C

C&T

None

C

C&T

None

LGDP1

1.644

−1.733

4.931

−5.635*

−10.033*

−4.216*

I(1)

LSX

−0.836

−2.502

2.307

−6.659*

−6.938*

−5.117*

I(1)

LGOODX

−1.203

−2.281

1.695

−6.769*

−7.850*

−5.622*

I(1)

LTOT

−2.543

−3.691**

−0.339

−7.797*

−7.663*

−7.791*

I(1)