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

Table 4

Data set 2 from Tone [14] and results from our approach.

DMU	x1	x2	y1	y2	Tone’s or Fang’s approach	Our approach
					1	4	3	2	3	0.7980	0.7980	0	0	0	0	0	0.357	0.714	0
2	6	3	2	3	0.5682	0.5682	0	0	0	0	0	0.643	2.286	0
3	8	1	6	2	1.3333	1.3333	0	0	0	0.5	0	0	0	0
4	8	1	6	1	0.6667	0.6667	0	0	0	0	0	0	0	1
5	2	4	1	4	1.4545	1.0001	0.526	0	0	0.428	0	1.711	0.526	0