- Hacettepe Journal of Mathematics and Statistics
- Vol: 47 Issue: 1
- A modified test for detecting influential decision-making units in data envelopment analysis
A modified test for detecting influential decision-making units in data envelopment analysis
Authors : Irmak Acarlar, Sinem Tuğba Şahin Tekin, H. Hasan Örkcü
Pages : 129-144
View : 12 | Download : 3
Publication Date : 2018-02-01
Article Type : Research
Abstract :In data analyses based on a deterministic or stochastic approach, using pre-study is very important to identify observations that are not suitable to data in general. Among such observations, those that have a high tendency to change results negatively are called influential observations. In this paper, we propose a new method to identify influential observations in Data Envelopment Analysis (DEA). Our method is a modified version of the one proposed by Pastor et al. [12]. Both methods are compared by using two well-known data sets and the outcomes are discussed. A comparative analysis indicates that our method is an effective alternative to the Pastor et al. [12] method to identify influential observations in DEA.Keywords : Data Envelopment Analysis, inuential observations, super efficiency, likelihood ratio test, statistical hypothesis test