Variable

Trend Specification

ADF Test Statistic

Break Date

Coefficient of Break Dummy (P Values)

Conclusion

r_ert

Intercept

7.698989 (0.0000)***

2015M09

0.034223(0.0000)***

I (0)

r_oilt

Intercept

11.16924 (0.000)***

2008M11

0.232518(0.0135)**

I (0)