Analysis of Chinese Commercial Banks’ Risk Management Efficiency Based on the PCA-DEA Approach

Table 7

Scale efficiency results of three types of commercial banks.

Bank	2011	2012	2013	2014	2015	2016	2017	2018	2019	Mean
SOB	0.9295	0.9425	0.9667	0.8267	0.8703	0.9993	0.8940	0.8674	0.9764	0.9192
JSB	0.7333	0.8515	0.7487	0.6346	0.6924	0.7117	0.8923	0.7592	0.8313	0.7617
CCB	0.6783	0.7611	0.7483	0.5402	0.5377	0.4530	0.6928	0.5102	0.7454	0.6297