Reza Kazemi Matin
Department of Mathematics, Islamic Azad University, Karaj Branch, Karaj, Iran
[ 1 ] - An input-oriented radial measure for returns to scale aggregation.
In production theory, it is necessary to be capable of predicting the production func- tion’s long-run behaviors. Hereof, returns to scale is a helpful concept. Returns to scale describes the reaction of a production function to the proportionally scaling all its input variables. In this regard, Data envelopment analysis (DEA) provides a com- prehensive framework for returns to scale evaluation...
[ 2 ] - A Ratio-Based Efficiency Measurement for Ranking Multi-Stage Production Systems in DEA
Conventional data envelopment analysis (DEA) models are used to measure efficiency score of production systems when they are considered as black boxes and their internal relationship is ignored. This paper deals with a common special case of network systems which is called multi-stage production system and can be generalized to many organizations. A multi stage production system has some stages...
[ 3 ] - Efficiency evaluation of wheat farming: a network data envelopment analysis approach
Traditional data envelopment analysis (DEA) models deal with measurement of relative efficiency of decision making units (DMUs) in which multiple-inputs consumed to produce multiple-outputs. One of the drawbacks of these models is neglecting internal processes of each system, which may have intermediate products and/or independent inputs and/or outputs. In this paper some methods which are usab...
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