From: Scale elasticity and technical efficiency measures in two-stage network production processes: an application to the insurance sector
DMU
Stage 1
Stage 2
Whole system
Subprocess 1
ε−
ε+
RTS
A
3
INF
I
6
0.1667
C
0.75015
B
0.5
1.5
0.3750
2.2500
0
0.4444
D
0.83325
0.6667