Table 1 Input and output variables for constructing the logistics industry’s CEE.
Indicator category | Indicator name | Indicator description | Unit | Data source |
|---|---|---|---|---|
Input | Capital stock | Investment in fixed assets in the logistics industry (Dai et al., 202538) | 100 million yuan | China Statistical Yearbook |
Number of staffs | Logistics labor inputs (Dai et al., 202538) | 10,000 people | ||
Energy consumption | Logistics’ energy consumption (Yao et al., 202437) | 10,000 tons of standard coal | China Energy Statistical Yearbook | |
Infrastructure | Total comprehensive mileage of transportation line (Ye et al., 202239) | km | China Statistical Yearbook | |
Expected output | Value added to the logistics industry | Annual increase in output value of the logistics industry (Li et al., 202540) | 100 million yuan | |
Unexpected outputs | CO2 emissions | Carbon emissions of logistics industry calculated using the IPCC method(Yao et al., 202437) | 10,000 tons | China Energy Statistical Yearbook |
