کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
476903 | 1446083 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Additive super-efficiency in integer-valued data envelopment analysis Additive super-efficiency in integer-valued data envelopment analysis](/preview/png/476903.png)
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.
► Deal directly with slacks for efficiency and super-efficiency for integer data.
► Show higher discrimination power in DMUs, compared with standard radial models.
► Apply our models to a data set that is characterized by integer-valued data.
Journal: European Journal of Operational Research - Volume 218, Issue 1, 1 April 2012, Pages 186–192