An Integrated Slacks-Based Measure of Super-Efficiency with Input Saving and Output Surplus Scaling Factors and its Application in Paper Chemical Mills

Table 1

Data set 1 from Tone [15].

DMU	x1	x2	y1	Tone’s or Fang’s approach			Chen’s approach	Our approach
				S-SBM	SBM		J-SBM	Integrated model (10)
				A	4	3	1	1	0.833	0.833	0.833	0.833
B	7	3	1	1	0.619	0.619	0.619	0.619
C	8	1	1	1.125	1	1.125	1.125	1.125
D	4	2	1	1.25	1	1.25	1.25	1.25
E	2	4	1	1.5	1	1.5	1.25	1.25
F	10	1	1	1	0.9	0.9	0.9	0.9
G	12	1	1	1	0.833	0.833	0.833	0.833