Variable

DF-GLS Test

Phillips-Perron Test

IO

Level

Level

No Trend

Trend

No Trend

Trend

lnGDP

0.828

−0.633

3.681

−0.396

lnGDS

2.001

−2.865

0.360

−4.596

Variable

DF-GLS Test

Phillips-Perron Test

IO

First Difference

First Difference

No Trend

Trend

No Trend

Trend

ΔlnGDP

−2.561**

−3.310**

−4.127***

−5.884***

I (1)

ΔlnGDS

−3.926***

−5.112***

−10.677***

−10.715***

I (1)