Spearman rank-order correlations with the Green Transformation Index
| Independent variable | ρ Spearman | p-value | n | Significance | Effect |
|---|---|---|---|---|---|
| Cluster size (no. of members) | 0.418 | 0.006 | 42 | ** | Moderate |
| Cluster budget log(budget) | 0.574 | <0.001 | 37 | *** | Strong |
| National Key Cluster status (KKK) | 0.647 | <0.001 | 42 | *** | Strong |
| Green transformation strategy | 0.495 | 0.003 | 34 | ** | Moderate |
| ESG strategy | 0.551 | 0.001 | 34 | *** | Strong |
| Innovation index (z) | 0.514 | <0.001 | 42 | *** | Strong |
| Cooperation index (z) | 0.539 | <0.001 | 42 | *** | Strong |
| Cluster age | 0.278 | 0.074 | 42 | † | Weak |
| Independent variable | Significance | Effect | |||
|---|---|---|---|---|---|
| Cluster size (no. of members) | 0.006 | 42 | Moderate | ||
| Cluster budget log(budget) | <0.001 | 37 | Strong | ||
| National Key Cluster status ( | <0.001 | 42 | Strong | ||
| Green transformation strategy | 0.003 | 34 | Moderate | ||
| 0.001 | 34 | Strong | |||
| Innovation index (z) | <0.001 | 42 | Strong | ||
| Cooperation index (z) | <0.001 | 42 | Strong | ||
| Cluster age | 0.074 | 42 | † | Weak |
***p < 0.001; **p < 0.01; *p < 0.05; † p < 0.10. Effect size interpretation (Cohen, 1988): |ρ| 0.10–0.29 = weak, 0.30–0.49 = moderate, ≥ 0.50 = strong. Innovation index and cooperation index are z-standardised sums of respective components. n varies due to missing values on budget and strategy variables
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