Table 5.
Results of the regional heterogeneity test.
| Explanatory variable | RR | Eastern part | Central part | Western part |
|---|---|---|---|---|
| (1) | (7) | (8) | (9) | |
| L.RR | 0.1632* | 0.1942 | 0.3184* | 0.2114 |
| (1.73) | (1.29) | (2.00) | (0.97) | |
| AI | 0.1633*** | 0.0800** | 0.0757 | 0.2744 |
| (2.74) | (2.79) | (0.54) | (1.32) | |
| PD | 0.0782*** | 0.0718** | 0.0771 | −0.0221 |
| (3.06) | (2.28) | (0.78) | (−0.25) | |
| MF | −0.0115** | −0.0233** | −0.0211** | 0.0031 |
| (−2.08) | (−3.04) | (−3.22) | (0.22) | |
| TP | 0.0078 | 0.0204 | 0.019 | 0.0559 |
| (0.59) | (1.45) | (0.71) | (1.27) | |
| RE | 0.0001 | −0.0064 | −0.003 | −0.0048 |
| (0.02) | (−0.93) | (−0.68) | (−0.59) | |
| AF | −0.0074 | 0.0048 | 0.035* | −0.0759 |
| (−0.47) | (0.92) | (2.17) | (−1.64) | |
| GS | 0.0093 | −0.0022 | −0.020 | 0.0066 |
| (1.41) | (−0.20) | (−2.43) | (0.39) | |
| AR (2) | 0.326 | 0.421 | 0.072 | 0.718 |
| Sargan’s test | 0.466 | 0.740 | 0.745 | 0.193 |
*, **, *** represent that it is significant on 0.1, 0.05, 0.001, and the value in parentheses is the t statistic, the same below.