Null Hypothesis: GDP has a unit root

Exogenous: Constant

Lag Length: 0 (Automatic-based on SIC, maxlag = 3)

Prod^*

t-Statistic

0.2359

−2.133008

Augmented Dickey-Fuller test statistic

−4.004425

−3.098896

−2.690439

1% level

5% level

10% level

Test critical values: