Table 9 Results of endogeneity test.
Variant | IV | Variant | DSPDM | |||
|---|---|---|---|---|---|---|
Phase I | Phase II | SCpg (4) | ||||
Gf (1) | Gf2 (2) | SCpg (3) | ||||
LĀ·Gf | 0.975*** (0.063) | Ā | Ā | L.Ef | 1.036*** (0.030) | |
LĀ·Gf2 | Ā | 1.009*** (0.074) | Ā | L.WEf | ā0.165* (0.129) | |
Gf | Ā | Ā | 1.253*** (0.300) | Gf | ā0.222* (0.116) | |
Gf2 | Ā | Ā | ā0.976*** (0.207) | Gf2 | 0.208* (0.089) | |
U-test(P>|t|) | Ā | Ā | 0.003*** | WxĀ·Gf | ā0.684*** (0.228) | |
unrecognizable | 59.276*** (0.000) | WxĀ·Gf2 | 0.496*** (0.172) | |||
Weak tool identification | 360.579(7.03) | Spatial rho | 0.219*** (0.076) | |||
over-identification | 0.000 | aggregate effect | Gf | ā1.160*** (0.117) | ||
Gf2 | 0.906*** (0.289) | |||||
control variable | Yes | direct effect | Gf | ā0.252** (0.117) | ||
Gf2 | 0.231*** (0.089) | |||||
Individual fixation | Yes | indirect effect | Gf | ā0.908*** (0.304) | ||
Gf2 | 0.675*** (0.233) | |||||
fixed time | Yes | Control variable/individual fixed/time fixed | YES | |||
R2 | Ā | Ā | 0.624 | R2 | 0.864 | |
N | 300 | 300 | 300 | N | 300 | |