Data envelopment analysis can examine the relative efficiency of a group of hospitals. The following information from a particular study involving 7-teaching hospitals with three input and four output measures.
Input Measures
Hospital Full-Time Supply Bed-Days
Equivalent Expense Available
Nonphysicians (1000s) (1000s)
A 310.0 134.60 116.00
B 278.5 114.30 106.80
C 165.6 131.30 65.52
D 250.0 316.00 94.40
E 206.4 151.20 102.10
F 384.0 217.00 153.70
G 530.1 770.80 215.00
Output Measures
Hospital Patient-Days Patient-Days Nurses Interns
(65 or older) (Under 65) Trained Trained
(1000s) (1000s)
A 55.31 49.52 291 47
B 37.64 55.63 156 3
C 32.91 25.77 141 26
D 33.53 41.99 160 21
E 32.48 55.30 157 82
F 48.78 81.92 285 92
G 58.41 119.70 111 89
a.Formulate a linear programming model so that data envelopment analysis can be used to evaluate the performance of hospital D.
b.Solve the model.
c.Is hospital D relatively inefficient? What is the interpretation of the value of the objective function?
d.How much patient-days of each type are produced by the composite hospital?
e.Which hospitals would you recommend hospital D consider emulating to improve the efficiency of its operation?