TY - JOUR
T1 - DEA-R
T2 - ratio-based comparative efficiency model, its mathematical relation to DEA and its use in applications
AU - Despic, Ozren
AU - Despic, Mladen
AU - Paradi, Joseph C.
PY - 2007/10
Y1 - 2007/10
N2 - We propose a new mathematical model for efficiency analysis, which combines DEA methodology with an old idea-Ratio Analysis. Our model, called DEA-R, treats all possible ratios "output/input" as outputs within the standard DEA model. Although DEA and DEA-R generate different summary measures for efficiency, the two measures are comparable. Our mathematical and empirical comparisons establish the validity of DEA-R model in its own right. The key advantage of DEA-R over DEA is that it allows effective integration of the model with experts' opinions via flexible restrictive conditions on individual "output/input" pairs. © 2007 Springer Science+Business Media, LLC.
AB - We propose a new mathematical model for efficiency analysis, which combines DEA methodology with an old idea-Ratio Analysis. Our model, called DEA-R, treats all possible ratios "output/input" as outputs within the standard DEA model. Although DEA and DEA-R generate different summary measures for efficiency, the two measures are comparable. Our mathematical and empirical comparisons establish the validity of DEA-R model in its own right. The key advantage of DEA-R over DEA is that it allows effective integration of the model with experts' opinions via flexible restrictive conditions on individual "output/input" pairs. © 2007 Springer Science+Business Media, LLC.
KW - DEA
KW - efficiency
KW - ratio analysis
KW - weight restrictions
UR - http://www.scopus.com/inward/record.url?scp=34548585710&partnerID=8YFLogxK
UR - http://www.springerlink.com/content/y07370x78764m640/
U2 - 10.1007/s11123-007-0050-x
DO - 10.1007/s11123-007-0050-x
M3 - Article
SN - 0895-562X
VL - 28
SP - 33
EP - 44
JO - Journal of Productivity Analysis
JF - Journal of Productivity Analysis
IS - 1-2
ER -