Table 3 ARDL(p) result
Variable | Model -I | Model – II |
|---|---|---|
\(LXP\) | LXP | |
\(ARDL (\mathrm{3,3},3)\) | ARDL (4,3,4,4) | |
CO2 | 4.0968 (24.855)* | 4.785 (9.44)* |
CO22 | −1.5191 (−25.951)* | −2.19 (−12.68)* |
GLOBCO2 | – | 0.491 (3.865)* |
\({ECT}_{t-1}\) | −0.276 (−5.204)* | −0.243 (−7.646)* |
Diagnostic statistics | ||
\({Adj R}^{2} 0.99\) | 0.99 | 0.99 |
F Statistic | 143.8 | 857.9 |
\({\chi }^{2}(heteroskedasticity)\) | 0.68 | 0.38 |
\(JB (normality)\) | 0.96 | 1.06 |
B-G (serial correlation) | 0.31 | 0.15 |