Table 1 Sensitivity of country classification to Temporal weighting (λ).
Lambda | Silhouette Score | Suggested optimal k | Silhouette for suggested optimal k | Developed (n) | Developing (n) |
|---|---|---|---|---|---|
0.00 | 0.6849006 | 2 | 0.6849006 | 12 | 93 |
0.05 | 0.6819273 | 2 | 0.6819273 | 13 | 92 |
0.10 | 0.6865926 | 2 | 0.6865926 | 13 | 92 |
0.15 | 0.6924942 | 2 | 0.6924942 | 13 | 92 |
0.20 | 0.6987467 | 2 | 0.6987467 | 13 | 92 |
0.25 | 0.6801862 | 3 | 0.7161577 | 13 | 92 |
0.30 | 0.6818329 | 3 | 0.7212277 | 13 | 92 |
0.35 | 0.6877317 | 3 | 0.7246317 | 13 | 92 |
0.40 | 0.687781 | 3 | 0.7224686 | 14 | 91 |
0.45 | 0.6880869 | 3 | 0.7251968 | 14 | 91 |
0.50 | 0.694156 | 3 | 0.7270374 | 14 | 91 |
Lambda | Agreement Rate | Countries Changed* | Developed Changed to Developing* | Developing Changed to Developed* | |
|---|---|---|---|---|---|
0.00 | 0.99 | 1 | 1 | 0 | |
0.05 | 1.00 | 0 | 0 | 0 | |
0.10 | 1.00 | 0 | 0 | 0 | |
0.15 | 1.00 | 0 | 0 | 0 | |
0.25 | 1.00 | 0 | 0 | 0 | |
0.30 | 1.00 | 0 | 0 | 0 | |
0.35 | 1.00 | 0 | 0 | 0 | |
0.40 | 0.99 | 1 | 0 | 1 | |
0.45 | 0.99 | 1 | 0 | 1 | |
0.50 | 0.99 | 1 | 0 | 1 | |
Country | λ = 0 | λ = 0.05–0.35 | λ = 0.4–0.5 | Economic Rationale | |
|---|---|---|---|---|---|
New Zealand | Developing | Developed | Developed | High GDP; moderate health spending affects weighting | |
Republic of Korea | Developing | Developing | Developed | Recent rapid growth accentuated at higher λ | |
All Others | Stable | Stable | Stable | Robust classification across weighting range | |
