If There Appears a Path to Improve Chinese Logistics Industry Efficiency in Low-Carbon Perspective? A Qualitative Comparative Analysis of Provincial Data
Table 1
Model variable and description.
Variables
Description
Unit
Explained variable
Logistics industry total efficiency (TE): considering input and output, it is calculated by the DEA method
Input index
Labor (L): salary of employee of logistics Capital (K): fund stock of logistics
100 million 100 million
Output index
Added value (Add) Freight turnover (turn) Carbon emission
100 million Ton/kilometer —
Explanatory variable
Operation and management level (5A)
The total amount of A-class logistics enterprise of different regions
Piece
Economic environment (GDP)
Regional GDP (price deflated value)
100 million
Opening degree (open)
The ratio of the total amount of imports and exports to GDP
—
Regulations and rules (Regu)
Investment of environmental pollution treatment in every region
