Table 10. The regression results of the sub-regional digital economy in promoting technological progress.
| Variable | Dependent variable: technological progress (TP) | |||
|---|---|---|---|---|
| Eastern China | Northeast China | Central China | Western China | |
| Estimation method | FGLS | |||
| DEI | 0.5425*** | 0.2472*** | 0.4531*** | 0.2986*** |
| (6.70) | (2.94) | (4.08) | (3.31) | |
| TD | 0.0022 | 0.0385** | 0.0177* | 0.0287** |
| (0.05) | (0.84) | (0.32) | (0.41) | |
| FD | 0.0101* | 0.0111 | 0.1100*** | 0.1309** |
| (0.22) | (0.58) | (2.53) | (2.29) | |
| IS | 0.2227*** | 0.0358* | 0.1262** | 0.0056 |
| (6.00) | (0.78) | (2.01) | (0.09) | |
| OPEN | 0.6189*** | 0.3902** | 0.5630** | 0.1433 |
| (5.33) | (2.72) | (2.19) | (0.81) | |
| RD | 0.9006*** | 0.2044* | 0.1629*** | 0.1051** |
| (7.02) | (1.51) | (3.34) | (0.98) | |
| constant | 6.8760*** | 12.8082*** | 27.6913*** | 17.7537*** |
| (1.27) | (2.01) | (3.07) | (2.39) | |
| Wald | 564.90 | 204.59 | 192.34 | 342.15 |
Note: The Z statistic values are in parentheses, and
***, **, * indicate significance at the levels of 1%, 5%, and 10%, respectively. The same applies to the following table.