| Variable | First difference p-value for Z(t) | Second difference p-value for Z(t) |
| LnRM2 | 0.6520 | 0.0000*** |
| LnRGDP | 0.8228 | 0.0000*** |
| Inflation | 0.0065** | 0.0000*** |
| lnExch | 0.1085 | 0.0145** |
| LnLibor | 0.5464 | 0.0020*** |
| Ln91days | 0.0006** | 0.0006** |