基准回归 | 机制检验 | ||||||
---|---|---|---|---|---|---|---|
(1) PCR | (2) SEI | (3) CEI | (4) Digec | (5) Ind | (6) GTI | ||
lnGather | -0.061*** | -0.030*** | -0.020*** | 0.004*** | 0.540*** | 0.101*** | |
(0.011) | (0.006) | (0.007) | (0.001) | (0.185) | (0.019) | ||
lnpgdp | -0.870*** | -0.450*** | -1.283*** | -0.014*** | 16.469*** | 2.888*** | |
(0.038) | (0.021) | (0.025) | (0.003) | (0.654) | (0.066) | ||
poden | 0.094*** | 0.006 | 0.005 | -0.001 | 0.820 | -0.021 | |
(0.033) | (0.018) | (0.022) | (0.002) | (0.571) | (0.058) | ||
urb | 0.320** | 0.020 | 0.348*** | 0.022** | 2.406 | -0.028 | |
(0.126) | (0.069) | (0.084) | (0.009) | (2.185) | (0.220) | ||
indu | -0.322*** | -0.127*** | -0.260*** | 0.004 | 1.185* | 0.345*** | |
(0.038) | (0.021) | (0.025) | (0.003) | (0.655) | (0.066) | ||
gov | -0.012 | -0.142* | 0.115 | 0.009 | 4.487* | 0.969*** | |
(0.141) | (0.077) | (0.094) | (0.010) | (2.456) | (0.248) | ||
rd | 0.095* | 0.005 | 0.058* | -0.010*** | 4.290*** | 0.616*** | |
(0.052) | (0.028) | (0.034) | (0.004) | (0.897) | (0.090) | ||
_cons | 3.717*** | 1.924*** | 5.112*** | 0.618*** | -2.659 | -2.650*** | |
(0.279) | (0.152) | (0.185) | (0.020) | (4.835) | (0.487) | ||
城市固定效应 | Yes | Yes | Yes | Yes | Yes | Yes | |
N | 1188 | 1188 | 1188 | 1188 | 1188 | 1188 | |
R2 | 0.571 | 0.547 | 0.835 | 0.046 | 0.604 | 0.819 |