Investigating the Sustainability of Return to Scale Classification in a Two-Stage Network Based on DEA Models

Table 2

Synthetic data for 10 two-stage DMUs.

DMU	1	2	3	4	5	6	7	8	9	10
Input for stage 1 (x)	2.5	4	5.5	8	11	6.5	9	4	5	2
Intermediate measure (z)	3.5	5.5	6.5	8	6	4.5	8	5.5	4	2
Final output (y)	7	10	5.5	13	9	7	8	9	6	1