Additive super-efficiency in integer-valued data envelopment analysis

作者：Du, Juan; Chen, Chien-Ming; Chen, Yao; Cook, Wade D.; Zhu, Joe^*

来源：European Journal of Operational Research, 2012, 218(1): 186-192.

DOI：10.1016/j.ejor.2011.10.023

• Data envelopment analysis
• Early-stage ventures
• Integer-valued data
• Slacks
• Super-efficiency

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.

• 出版日期2012-4-1
• 单位南阳理工学院; 同济大学