کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
480209 | 1446089 | 2012 | 8 صفحه PDF | دانلود رایگان |
In this paper we tackle the problem of outlier detection in data envelopment analysis (DEA). We propose a procedure where we merge the super-efficiency DEA and the forward search. Since DEA provides efficiency scores which are not parameters to fit the model to the data, we introduce a distance, to be monitored along the search. This distance is obtained through the integration of a regression model and the super-efficiency DEA. We simulate a Cobb–Douglas production function and we compare the super-efficiency DEA and the forward search analysis in both uncontaminated and contaminated settings. For inference about outliers, we exploit envelopes obtained through Monte Carlo simulations.
► We extend to DEA the forward search.
► We integrate the linear regression DEA framework and the super-efficiency DEA.
► We apply the analysis on a Cobb–Douglas production function.
Journal: European Journal of Operational Research - Volume 216, Issue 1, 1 January 2012, Pages 200–207