Table 3.
Correlation function value of each evaluation index used in an evaluation of overseas mining investment in the Philippines.
| Evaluation index | Risk grade | |||||
|---|---|---|---|---|---|---|
| High risk | Higher risk | General risk | Lower risk | Low risk | ||
| Political policy risk | Political stability | -0.71 | -0.3 | -0.5 | -0.82 | -0.9 |
| Level of government corruption | -0.7 | 5 | -0.5 | -0.81 | -0.88 | |
| Sino-foreign friendship | -0.67 | 3 | -0.5 | -0.8 | -0.875 | |
| Mining policy | -0.9145 | 0.71 | -0.5 | -0.93 | -0.96 | |
| Environmental standards | -1 | -1 | 0 | -1 | -1 | |
| Economic and financial risk | Price level | -0.99 | -0.95 | -0.91 | -0.5 | 0.69 |
| Economic growth rate | -0.895 | -0.79 | -0.58 | -0.5 | -0.85 | |
| Exchange rate | -0.98 | -0.98 | -0.965 | -0.93 | -0.93 | |
| Credit rating | -0.92 | -0.86 | -0.5 | -0.8 | -0.8 | |
| Sociocultural risk | Humanistic environment | -0.85 | -0.77 | -0.5 | -0.918 | -0.059 |
| Social security | -0.5 | -0.098 | -0.549 | -0.7745 | -0.85 | |
| Trade union strike | -1 | -1 | -1 | -1 | -1 | |
| Infrastructure risk | Information transmission | -0.8 | -0.5 | -0.33 | -0.665 | -0.8325 |
| Transportation | -0.9345 | -0.90 | -0.8035 | 2.93 | -0.5 | |