Variables | Test | LLC | IPS | PP | Order of integration |
DO | In level | 0.95024 (0.8290) | 0.44093 (0.6704) | 13.2578 (0.5063) | I(1) |
In difference | −15.1515* (0.0000) | −13.9436* (0.0000) | 154.274* (0.0000) | ||
Debt | In level | 0.58223 (0.7198) | 0.89229 (0.8139) | 8.52095 (0.8605) | I(1) |
In difference | −13.1280* (0.0000) | −12.8841* (0.0000) | 151.062* (0.0000) | ||
FCF | In level | −3.12685* (0.0009) | −3.36214* (0.0004) | 48.3958* (0.0000) | I(0) |
POP | In level | −4.56051* (0.0000) | −1.23358* (0.1087) | 19.2046* (0.1573) | I(0) |
GDP | In level | −11.7474* (0.0000) | −12.8229* (0.0000) | 151.698* (0.0000) | I(0) |