| Variable | Level | First difference | ||
| t-stat | Prob | t-stat | Prob | |
| EC | −1.62097 | 0.5901 | −9.94636* | 0 |
| FA | −2.5966 | 0.284 | −5.5766* | 0 |
| GDP | 0.19968 | 0.9689 | −4.72685* | 0.0005 |