Evolution of the Efficiency of Nationwide Commercial Banks in China Based on an SBM-Undesirable Model and DEA Window Analysis

Table 4

Technical efficiency of 13 banks.

Bank	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	Mean
ICBC	1	0.847	0.947	1	1	1	1	1	1	1	0.979
IB	1	0.845	0.957	0.932	1	1	1	1	1	1	0.973
BOC	1	0.94	0.96	1	1	1	0.924	0.876	1	0.724	0.942
CMBC	0.925	1	0.763	0.902	1	1	1	1	0.889	0.823	0.93
SPDB	0.806	0.716	0.798	0.895	0.87	0.988	0.906	0.787	1	1	0.876
PAB	0.919	0.791	0.718	0.72	0.775	0.808	1	1	1	0.881	0.861
CMB	0.849	0.664	0.717	0.743	0.711	0.75	0.942	0.937	0.922	0.815	0.805
CITIC	1	0.652	0.717	0.849	0.765	0.712	0.714	0.772	0.815	0.885	0.788
CCB	1	0.805	0.841	0.866	0.755	0.649	0.613	0.628	0.691	0.624	0.747
CEB	0.799	0.628	0.66	0.701	0.718	0.632	0.691	0.791	0.743	0.725	0.709
BOCOM	0.9	0.767	0.794	0.752	0.668	0.623	0.588	0.564	0.552	0.58	0.679
HXB	0.808	0.649	0.661	0.679	0.663	0.639	0.632	0.569	0.605	0.655	0.656
ABC	0.607	0.569	0.591	0.621	0.576	0.551	0.566	0.534	0.47	0.507	0.559