Variable Type of test | Test | With constant and without trend | With constant and trend | Critical values at 5% | Test statistic | Decision |
IDH | ADF | Oui | Oui | −3.557 | −4.282 | I(1) |
PP | Oui | Oui | −3.557 | −4.248 | I(1) | |
KPSS | Oui | Oui | 0.146 | 0.175 | I(0) | |
IDPFNL | ADF | Oui | Oui | −2.954 | −5.200 | I(0) |
PP | Oui | Oui | −3.552 | −5.259 | I(0) | |
KPSS | Oui | Oui | 0.146 | 0.196 | I(1) | |
LSurf_forest | ADF | Oui | Oui | −2.957 | −3.795 | I(1) |
PP | Oui | Oui | −2.957 | −3.728 | I(1) | |
KPSS | Oui | Oui | 0.146 | 0.180 | I(1) | |
Cons_Energ | ADF | Oui | Oui | −2.957 | −5.581 | I(1) |
PP | Oui | Oui | −3.557 | −5.696 | I(1) | |
KPSS | Non | Oui | 0.146 | 0.183 | I(0) | |
Services | ADF | Oui | Oui | −2.957 | −7.137 | I(1) |
PP | Oui | Oui | −3.557 | −8.212 | I(1) | |
KPSS | Non | Oui | 0.146 | 0.157 | I(0) |