| 非经合 | 经合 | 发展中 | 发达 |
| (1) | (2) | (3) | (4) |
NSTRI | −6.514*** | −0.597 | −5.124*** | −0.758 |
| (1.200) | (0.735) | (1.063) | (0.500) |
capital | 0.867 | 0.606*** | 0.718 | 0.541*** |
| (0.638) | (0.187) | (0.565) | (0.097) |
urban | 0.203** | 0.076 | 0.598*** | 0.012 |
| (0.099) | (0.051) | (0.147) | (0.019) |
manf | 0.198 | −0.186 | 0.193 | 0.038 |
| (0.127) | (0.200) | (0.125) | (0.100) |
edu | −0.827 | −0.874* | −0.759 | −0.742*** |
| (0.861) | (0.462) | (0.834) | (0.233) |
gover | 0.479 | 0.490 | 0.416 | 0.323* |
| (0.794) | (0.344) | (0.743) | (0.186) |
_cons | −6.503 | 3.528 | −6.875 | −1.328 |
| (4.610) | (5.382) | (4.390) | (2.752) |
N | 128.000 | 264.000 | 160.000 | 232.000 |
r2 | 0.306 | 0.082 | 0.293 | 0.229 |
r2_a | 0.169 | −0.073 | 0.161 | 0.096 |