Table 7 Outbound route heterogeneity test results.
From: Can international railway express improve green total factor productivity?
East route | Central route | West route | ||||
|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | |
GTFP | GTFP | GTFP | ||||
Treat×post | 0.028* (1.67) | 0.064*** (3.78) | −0.009 (−0.68) | −0.002 (−0.11) | 0.051*** (3.21) | 0.059*** (3.71) |
Cons | 0.556 (0.81) | 0.278*** (22.25) | −1.166** (−2.43) | 0.296*** (32.42) | −0.862*** (−2.94) | 0.269*** (29.99) |
Control variables | YES | NO | YES | NO | YES | NO |
City fixed effect | YES | YES | YES | YES | YES | YES |
Year fixed effect | YES | YES | YES | YES | YES | YES |
Observations | 588 | 588 | 1404 | 1404 | 1368 | 1368 |
R2 | 0.396 | 0.307 | 0.351 | 0.293 | 0.374 | 0.345 |
