Title
Additive super-efficiency in integer-valued data envelopment analysis.
Abstract
Conventional data envelopment analysis (DEA) methods assume that input and output variables are continuous. However, in many real managerial cases, some inputs and/or outputs can only take integer values. Simply rounding the performance targets to the nearest integers can lead to misleading solutions and efficiency evaluation. Addressing this kind of integer-valued data, the current paper proposes models that deal directly with slacks to calculate efficiency and super-efficiency scores when integer values are present. Compared with standard radial models, additive (super-efficiency) models demonstrate higher discrimination power among decision making units, especially for integer-valued data. We use an empirical application in early-stage ventures to illustrate our approach. © 2011 Elsevier B.V. All rights reserved.
Year
DOI
Venue
2012
10.1016/j.ejor.2011.10.023
European Journal of Operational Research
Keywords
Field
DocType
Data envelopment analysis,Early-stage ventures,Integer-valued data,Slacks,Super-efficiency
Integer,Mathematical optimization,Input/output,Rounding,Data envelopment analysis,Super efficiency,Mathematics,Operations management
Journal
Volume
Issue
ISSN
218
1
0377-2217
Citations 
PageRank 
References 
2
0.38
6
Authors
5
Name
Order
Citations
PageRank
Juan Du11548.02
Chien-Ming Chen2382.53
Yao Chen354440.02
Wade D. Cook4121584.70
Joe Zhu51762167.31