Table 9 Results of the relationship between DPY and IIML.
From: Integration and innovation of China’s manufacturing and logistics industries and carbon emissions
Variable | Dependent variable: RCE | |||
|---|---|---|---|---|
IIML (1) | IIML2 (2) | IIML (3) | IIML2 (4) | |
\({{DPY}2015}_{{it}}\) | −0.1010*** (−3.44) | −0.0483*** (−2.98) | / | / |
\({{DPY}22015}_{{it}}\) | 0.2519*** (3.65) | 0.1469*** (3.25) | / | / |
\({{DPYV}}_{{it}}\) | / | / | −0.1084*** (−3.51) | −0.0535*** (−3.10) |
\({{DPYV}2}_{{it}}\) | / | / | 0.2659*** (3.70) | 0.1564*** (3.33) |
Control variable | Yes | Yes | Yes | Yes |
Provincial fixed effect | Yes | Yes | Yes | Yes |
Year fixed effect | Yes | Yes | Yes | Yes |
N | 240 | 240 | 240 | 240 |
