Title of article :
Input congestion, technical inefficiency and output reduction in fuzzy data envelopment analysis
Author/Authors :
khodabakhshi, M. Department of Mathematics - Faculty of Science - Lorestan University, Khorram Abad, Iran , Aryavash, N. Department of Mathematics - Faculty of Science - Lorestan University, Khorram Abad, Iran
Abstract :
During the last years, the concept of input congestion and technical ineff-ciency in data envelopment analysis (DEA), have been investigated by many researchers. The motivation of this paper is to present models which obtain the decreased output value due to input congestion and technical inefficiency. More- over, we extend the models to estimate input congestion, technical inefficiency and output reduction in fuzzy data envelopment analysis, by using the concept of α-cut sets.
Keywords :
Fuzzy DEA , Congestion , Output reduction , Technical inefficiency
Journal title :
نظريه تقريب و كاربردهاي آن
