Null Hypothesis: PE has a unit root

Exogenous: Constant

Lag Length: 0 (Automatic - based on SIC, maxlag = 0)

t-Statistic

Prob.*

Augmented Dickey-Fuller test statistic

−1.882025

0.3358

Test critical values:

1% level

−3.670170

5% level

−2.963972

10% level

−2.621007