| Variable Level | First difference | ||
ADF | PP | ADF | PP | |
GDP | −1.23 | −1.25 | −4.56* | −4.59* |
CPI | −0.87 | −0.91 | −3.78* | −3.81* |
M2 | −2.12 | −2.15 | −5.32* | −5.36* |
INT | −2.45 | −2.49 | −6.21* | −6.25* |