Table 5 Robustness test of the model.
From: Convergence effect of the Belt and Road Initiative on income disparity: evidence from China
Variables | Replacing the dependent variable | Triple difference estimation | ||
|---|---|---|---|---|
(1) fe | (2) fe | (3) fe | (4) fe | |
treat × policy | −0.014*** (−4.96) | −0.015*** (−5.06) |  |  |
tridid |  |  | −0.034*** (−5.55) | −0.035*** (−5.68) |
govtec |  | −0.184*** (−4.96) |  | −0.351*** (−4.40) |
market |  | −0.002 (−1.30) |  | −0.003 (−1.17) |
culture |  | −0.002** (−2.14) |  | −0.002 (−1.13) |
human |  | −0.307*** (−3.42) |  | −0.280 (−1.45) |
urban |  | 0.001 (0.99) |  | −0.001 (0.95) |
ln net |  | −0.003** (−2.34) |  | −0.008*** (−2.67) |
cons | 0.307*** (138.41) | 0.317*** (88.78) | 0.576*** (120.63) | 0.595*** (77.42) |
fixed time | Yes | Yes | Yes | Yes |
fixed individuals | Yes | Yes | Yes | Yes |
Sample size | 4304 | 4304 | 4304 | 4304 |
Adj-R2 | 0.315 | 0.322 | 0.313 | 0.317 |
