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雷达卡
疑问：1. 从输出结果看出，分理处2非DEA有效且规模效益递增。例题中分理处2职员数为20，营业面积130，输出结果中“SUMMARY OF INPUT TARGETS”分理处2职员数为19.322，营业面积125.593。为什么规模效益递增但目标投入却要减少？2. 结合例题及输出数据，我们该给分理处2的建议是什么呢？
例题：关于银行分理处相对有效性的测量
---------------以下为DEAP 2.1的输出结果---------------
Results from DEAP Version 2.1
Instruction file = test-ins.txt
Data file = test-dta.txt
Input orientated DEA
Scale assumption: VRS
Slacks calculated using multi-stage method
EFFICIENCY SUMMARY:
firm crste vrste scale
1 1.000 1.000 1.000 -
2 0.892 0.966 0.924 irs
3 1.000 1.000 1.000 -
4 1.000 1.000 1.000 -
mean 0.973 0.992 0.981
Note: crste = technical efficiency from CRS DEA
vrste = technical efficiency from VRS DEA
scale = scale efficiency = crste/vrste
Note also that all subsequent tables refer to VRS results
SUMMARY OF OUTPUT SLACKS:
firm output: 1 2 3
1 0.000 0.000 0.000
2 79.661 30.085 383.898
3 0.000 0.000 0.000
4 0.000 0.000 0.000
mean 19.915 7.521 95.975
SUMMARY OF INPUT SLACKS:
firm input: 1 2
1 0.000 0.000
2 0.000 0.000
3 0.000 0.000
4 0.000 0.000
mean 0.000 0.000
SUMMARY OF PEERS:
firm peers:
1 1
2 1 3
3 3
4 4
SUMMARY OF PEER WEIGHTS:
(in same order as above)
firm peer weights:
1 1.000
2 0.280 0.720
3 1.000
4 1.000
PEER COUNT SUMMARY:
(i.e., no. times each firm is a peer for another)
firm peer count:
1 1
2 0
3 1
4 0
SUMMARY OF OUTPUT TARGETS:
firm output: 1 2 3
1 1800.000 200.000 1600.000
2 1079.661 380.085 1383.898
3 800.000 450.000 1300.000
4 900.000 420.000 1500.000
SUMMARY OF INPUT TARGETS:
firm input: 1 2
1 15.000 140.000
2 19.322 125.593
3 21.000 120.000
4 20.000 135.000
FIRM BY FIRM RESULTS:
Results for firm: 1
Technical efficiency = 1.000
Scale efficiency = 1.000 (crs)
PROJECTION SUMMARY:
variable original radial slack projected
value movement movement value
output 1 1800.000 0.000 0.000 1800.000
output 2 200.000 0.000 0.000 200.000
output 3 1600.000 0.000 0.000 1600.000
input 1 15.000 0.000 0.000 15.000
input 2 140.000 0.000 0.000 140.000
LISTING OF PEERS:
peer lambda weight
1 1.000
Results for firm: 2
Technical efficiency = 0.966
Scale efficiency = 0.924 (irs)
PROJECTION SUMMARY:
variable original radial slack projected
value movement movement value
output 1 1000.000 0.000 79.661 1079.661
output 2 350.000 0.000 30.085 380.085
output 3 1000.000 0.000 383.898 1383.898
input 1 20.000 -0.678 0.000 19.322
input 2 130.000 -4.407 0.000 125.593
LISTING OF PEERS:
peer lambda weight
1 0.280
3 0.720
Results for firm: 3
Technical efficiency = 1.000
Scale efficiency = 1.000 (crs)
PROJECTION SUMMARY:
variable original radial slack projected
value movement movement value
output 1 800.000 0.000 0.000 800.000
output 2 450.000 0.000 0.000 450.000
output 3 1300.000 0.000 0.000 1300.000
input 1 21.000 0.000 0.000 21.000
input 2 120.000 0.000 0.000 120.000
LISTING OF PEERS:
peer lambda weight
3 1.000
Results for firm: 4
Technical efficiency = 1.000
Scale efficiency = 1.000 (crs)
PROJECTION SUMMARY:
variable original radial slack projected
value movement movement value
output 1 900.000 0.000 0.000 900.000
output 2 420.000 0.000 0.000 420.000
output 3 1500.000 0.000 0.000 1500.000
input 1 20.000 0.000 0.000 20.000
input 2 135.000 0.000 0.000 135.000
LISTING OF PEERS:
peer lambda weight
4 1.000
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