Figures & data
Figure 1. The principle of virtual frontier DEA.
Table 1. The coefficient of carbon dioxide emission of building materials
Table 2. The recovery coefficient of building materials
Table 3. Correlation matrix for inputs and outputs
Table 4. The results of traditional DEA model
Table 5. The results of virtual frontier SBM-DEA model
Table 6. The results of SFA analysis
Table 7. The results of three-stage virtual frontier SBM-DEA
Table 8. The geographical division of the PARs
Figure 2. Average sustainable efficiencies of 3 regions in China from 2011 to2016.
Table 9. The CO2 emission reduction potential of all PARs (104 tons)
Figure 3. Categorizations of CO2emission reduction potential and sustainable efficiency of 30 PARs.
Table 10. The comparison of the four methods