Table 7 Empirical results of mechanism check.
From: The impact of intellectual property demonstration policies on carbon emission efficiency
Variable | Model (1) | Model (2) | Model (3) | Model (2) | Model (3) |
|---|---|---|---|---|---|
CEE | GTIC | CEE | ISU | CEE | |
IPDP | 0.044*** (0.014) | 3.692*** (0.129) | 0.029* (0.015) | 0.016*** (0.002) | 0.034** (0.014) |
GTIC | 0.012*** (0.002) | ||||
ISU | 0.593*** (0.118) | ||||
EDL | − 0.092*** (0.007) | 0.469*** (0.066) | − 0.093*** (0.007) | 0.048*** (0.001) | − 0.120*** (0.009) |
EDL2 | 0.005*** (0.001) | − 0.027*** (0.005) | 0.005*** (0.001) | − 0.002*** (0.000) | 0.006*** (0.001) |
ER | 5.057** (2.466) | − 82.385*** (22.971) | 5.669** (2.459) | 2.376*** (0.358) | 3.648 (2.473) |
ES | − 0.226*** (0.032) | − 0.542* (0.306) | − 0.189*** (0.030) | − 0.028*** (0.005) | − 0.209*** (0.032) |
PSI | − 0.238*** (0.057) | − 4.260*** (0.535) | − 0.082 (0.053) | − 0.735*** (0.008) | 0.198* (0.104) |
Constant | 0.871*** (0.038) | 3.008*** (0.352) | 0.762*** (0.035) | 0.711*** (0.005) | 0.449*** (0.092) |
Observations | 3640 | 3640 | 3640 | 3640 | 3640 |
