Operational Efficiency Evaluation of Iron Ore Logistics at the Ports of Bohai Bay in China: Based on the PCA-DEA Model

Table 9

DEA-based evaluation of the operational efficiency of the iron ore logistics in Bohai Bay.

Port DMU
Dalian	0.86956	0.4496	<1	0.1641	0	0	0.6213	0	1.8825
Yingkou	1	1	1	0	0	0	0	0	0
Tianjin	1	1	1	0	0	0	0	0	0
Rizhao	1	1	1	0	0	0	0	0	0
Tangshan	0.67976	0.73216	>1	36.0090	0.7589	0	0	0	3.3778
Qingdao	1	1	1	0	0	0	0	0	0
Yantai	1	1	1	0	0	0	0	0	0