A Network DEA Model with Super Efficiency and Undesirable Outputs: An Application to Bank Efficiency in China

Table 4

Efficient observations measured by US-NSBM model.

Year	Bank name	Black box (input)	Black box (output)	NSBM	US-NSBM
					Overall	Stage 1	Stage 2
2009	Industrial and Commercial Bank of China	1.014	1.018	0.893	0.965	1.000	0.965
2010		1.016	1.112	0.912	1.004	1.003	1.001
2011		1.007	1.006	0.941	1.003	1.000	1.003
2012		1.188	1.118	1.000	1.118	1.000	1.118
2009	Agricultural Bank of China Limited	1.136	1.067	0.968	0.812	1.000	0.812
2012		1.013	1.016	1.000	1.012	1.000	1.012
2012	Bank of Communications Co. Ltd.	1.028	1.035	1.000	1.021	1.009	1.012
2011	China Merchants Bank Co. Ltd.	1.007	1.030	0.377	0.723	0.723	1.000
2012	China Minsheng Banking Corporation	1.046	1.050	1.000	1.046	1.000	1.046
2011	Shanghai Pudong Development Bank	1.073	1.137	0.380	1.112	1.000	1.112
2012		1.117	1.041	1.000	1.046	1.000	1.046
2011	Bank of Beijing Co. Ltd.	1.201	1.141	0.447	1.126	1.022	1.102
2012		1.061	1.193	1.000	1.048	1.000	1.048
2011	HSBC Bank (China) Co. Ltd.	1.259	1.336	0.031	1.085	1.000	1.085
2012		1.203	1.168	1.000	1.173	1.000	1.173
2011	Hankou Bank	1.446	1157.860	0.003	1.507	1.000	1.507
2012	Citibank (China) Co. Ltd.	1.171	1.291	1.000	1.114	1.000	1.114
2008	Nanyang Commercial Bank (China) Limited	1.056	1.133	0.286	0.519	1.000	0.519
2009		0.003	1.163	0.260	0.464	1.000	0.464
2008	Bank of Fuxin Co. Ltd.	1.232	1.193	1.000	0.663	1.000	0.663
2009		1.033	1.040	0.493	0.619	1.000	0.619
2012		1.000	1.000	0.000	0.727	0.727	1.000
2008	First Sino Bank	1.062	1.051	0.203	0.687	1.000	0.687
2008	United Overseas Bank (China) Limited	1.242	1.209	0.957	0.917	1.000	0.917
2008	Hana Bank (China) Company Ltd.	1.358	1.359	0.624	1.199	1.199	1.000
2009		1.019	1.058	1.000	1.017	1.017	1.000
2011		1.050	1.049	0.188	0.878	1.000	0.878
2012		1.105	1.203	0.131	0.899	1.000	0.899
Mean		1.077	42.431	0.646	0.947	0.989	0.957