Table 5 Correlation matrix of the key variables
Variables | \( \raisebox{1ex}{$I$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) | \( \raisebox{1ex}{$ CF$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) | Q | \( \raisebox{1ex}{$S$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) |
|---|---|---|---|---|
(1) | (2) | (3) | (4) | |
\( \raisebox{1ex}{$I$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) | 1 | Â | Â | Â |
\( \raisebox{1ex}{$ CF$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) | 0.671 | 1 | Â | Â |
Q | 0.557 | 0.1590* | 1 | Â |
\( \raisebox{1ex}{$S$}\!\left/ \!\raisebox{-1ex}{$K$}\right. \) | 0.573 | 0.0022 | 0.008* | 1 |
VIF | 1.11 | 1.21 | 1.01 | 1.00 |