Type 1: no drift no trend

Type

lag

ADF

P value

[1,]

0

−4.66

0.0100

[2,]

1

−3.36

0.0100

[3,]

2

−2.44

0.0171

[4,]

3

−2.52

0.0139

Type 2: with drift no trend

lag

ADF

P value

[1,]

0

−5.04

0.0100

[2,]

1

−3.76

0.0100

[3,]

2

−2.72

0.0820

[4,]

3

−2.85

0.0617

Type 3: with drift and trend

lag

ADF

P value

[1,]

0

−5.06

0.0100

[2,]

1

−3.75

0.0279

[3,]

2

−2.73

0.2772

[4,]

3

−2.96

0.1853