Environmental Efficiency Evaluation of Chinese Industry Systems by Using Non-Cooperative Two-Stage DEA Model

Table 4

Determinants of the overall efficiency scores when subsystem 2 is a leader.

Independent variables	Coefficients	Standard error
Constant	0.137	0.109
CGI	0.259	0.181
SGI	−0.990	0.226
SWGI	−0.351	0.211
EI	0.294	0.180
CDI	−0.413	0.205
SDI	−0.633	0.215
SWDI	−0.111	0.162

Note: and . Dependent variables are overall efficiency scores of each province. , , and indicate the parameter estimate is significantly different from zero at 0.001, 0.01, and 0.05, respectively.