Variables | Test forms | ADF statistical test quantity | Critical value | Conclusion |
LNOFDI | (0, 0, 0) | −1.982344 | −2.238120*** | Stable |
LNGSR | (C, T, 0) | −5.017989 | −4.107833** | Stable |
LNHOF | (C, 0, 0) | −3.550819 | −3.259808** | Stable |