A new method for detecting outliers in Data Envelopment Analysis

被引:21
|
作者
Tran, Nam Anh [2 ]
Shively, Gerald [1 ]
Preckel, Paul [1 ]
机构
[1] Purdue Univ, Dept Agr Econ, W Lafayette, IN 47907 USA
[2] N Carolina State Univ, Dept Econ, Raleigh, NC 27695 USA
关键词
FRONTIER MODELS; EFFICIENCY;
D O I
10.1080/13504850701765119
中图分类号
F [经济];
学科分类号
02 ;
摘要
We introduce a simple method for detecting outliers in Data Envelopment Analysis. The method is based on two scalar measures. The first is the relative frequency with which an observation appears in the construction of the frontier when testing the efficiency of other observations, and the second is the cumulative weight of an observation in the construction of the frontier. We provide a link to computer programming code for implementing the procedure.
引用
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页码:313 / 316
页数:4
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