Unit root test result
| Variables | T-statistics | Critical value at 5% significance | Probabilities | ADF test: stationary at levels or difference |
|---|---|---|---|---|
| ERV | −4.791522 | −2.967767 (lower tail, > t-stat) | 0.0006 (<0.05) | Level |
| DREER | −7.550069 | −2.971853 (lower tail, > t-stat) | 0.0000 (<0.05) | Level |
| Y | −5.127979 | −2.976263 (lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| Xt | −5.080055 | −2.976263 (lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| GDP | −5.080130 | −2.967767 (Lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| GER | −4.292251 | −2.976263 (lower tail, > t-stat) | 0.0022 (<0.05) | Level |
| Variables | T-statistics | Critical value at 5% significance | Probabilities | ADF test: stationary at levels or difference |
|---|---|---|---|---|
| ERV | −4.791522 | −2.967767 (lower tail, > t-stat) | 0.0006 (<0.05) | Level |
| DREER | −7.550069 | −2.971853 (lower tail, > t-stat) | 0.0000 (<0.05) | Level |
| Y | −5.127979 | −2.976263 (lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| Xt | −5.080055 | −2.976263 (lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| GDP | −5.080130 | −2.967767 (Lower tail, > t-stat) | 0.0003 (<0.05) | 1st difference |
| GER | −4.292251 | −2.976263 (lower tail, > t-stat) | 0.0022 (<0.05) | Level |
Source(s): Authors’ computation
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