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

Table 8

Bootstrap truncated regression results for impact factor analysis of technical efficiency.

Variables	Coef.	Std. err.	z
NIIR	0.0100	0.0023	4.42	0.000
CIR	−0.0118	0.0028	−4.24	0.000
NIM	0.0237	0.0405	0.58	0.559
TIFA	0.0141	0.0023	6.04	0.000
CPI	0.0201	0.0072	2.80	0.005
_cons	−1.4450	0.7267	−1.99	0.047

Significance within the levels of 10%; significance within the level of 5%; significance within the level of 1%.