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

Table 3

Determinants of the overall efficiency scores when subsystem 1 is a leader.

Independent variables	Coefficients	Standard error
Constant	0.211	0.156
CGI	0.148	0.259
SGI	−0.591	0.323
SWGI	−0.430	0.302
EI	0.474	0.257
CDI	−0.280	0.292
SDI	−0.835	0.307
SWDI	−0.192	0.232

Note: and . Dependent variables are the 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.