| Description | Differencing | Order of integration | |||
| Levels | First difference | ||||
| t-value | P-value | t-value | P-value | ||
| LuSE index | −2.0779 | 0.5535 | −4.5611 | 0.0017 | I(1) |
| Interest | −1.9092 | 0.6449 | −11.30948 | 0.0000 | I(1) |
| REER | −1.941974 | 0.0540 | −9.9055 | 0.0000 | I(1) |
| Copper | −2.448232 | 0.3535 | −8.764907 | 0.0000 | I(1) |
| Oil | −2.205665 | 0.4827 | −8.734331 | 0.0000 | I(1) |
| Test critical values: | 1% level 5% level 10% level | −4.019561 −3.439658 −3.144229 |
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