International Journal of Data Envelopment Analysis2345-458X5220170501Data Envelopment Analysis with Sensitive Analysis and Super-efficiency in Indian Banking Sector1193120612315ENQ. FarooqDarDepartment of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, IndiaT. RaoPadDepartment of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, IndiaA. MuhammadTaliDepartment of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, IndiaYaserHamidDept. of Computer Science, Islamic University of Science and Technology
Jammu and Kashmir, IndiaFDanishDivision of Statistics and Computer Science, SKUAST-Jammu, IndiaJournal Article20170115Data envelopment analysis (DEA) is non-parametric linear programming (LP) based technique for estimating the relative efficiency of different decision making units (DMUs) assessing the homogeneous type of multiple-inputs and multiple-outputs. The procedure does not require a priori knowledge of weights, while the main concern of this non-parametric technique is to estimate the optimal weights of inputs and outputs through which the proper classifications of DMUs are possible. DMUs classification with DEA has many challenges in the case of volatility in the values of inputs and outputs. Sensitivity classifications (either efficient or inefficient) as well as returns to scale (RTS) classification (CRS, IRS and DRS) of DMUs are the prominent and vital challenges in DEA studies. Flexible and feasible convex regions with changing values of the reference units from the reference set of inefficient DMUs. This paper has proposed the issues of sensitivities regarding the above mentioned classifications of DMUs and assessing the technical efficiencies by using SBM case of DEA models. Super-efficiency is estimated in case of input and output slacks approach measure and ranking was mad as per the super-efficiency score. Validity of the proposed model is carried with the suitable numerical illustration.International Journal of Data Envelopment Analysis2345-458X5220170501Resource allocation based on DEA for distance improvement to MPSS points considering environmental factors1207123012316ENAzamMottaghiFaculty of Mathematics and Computer Science, Amirkabir University of Technology, 424 Hafez Avenue, 15914 Tehran, IranRezaEzzatiDepartment of Mathematics, Islamic Azad University, Karaj Branch, Karaj, IranEsmaeilKhorramFaculty of Mathematics and Computer Science, Amirkabir University of Technology, 424 Hafez Avenue, 15914 Tehran, IranJournal Article20170107This paper proposes a new resource allocation model which is based on data envelopment analysis (DEA) and concerns systems with several homogeneous units operating under supervision of a central unit. The previous studies in DEA literature deal with reallocating/allocating organizational resource to improve performance or maximize the total amount of outputs produced by individual units. In those researches, it is assumed that all data are discretionary. Resource allocation problem has a multiple criteria nature; thus to solve it, many intervening factors should be regarded. This paper not only develops resource allocation plan for systems with both discretionary and non discretionary data in their inputs, but also considers environmental factors as well. In addition, the overall distance from the decision making units (DMUs) to their most productive scale size (MPSS) points is taken into account and is minimized in this method. To find the best allocation plan, this paper applies multiple objective programming (MOLP). Numerical examples are employed to illustrate the application of this approach on real data.International Journal of Data Envelopment Analysis2345-458X5220170501A DEA-bases Approach for Multi-objective Design of Attribute Acceptance Sampling Plans1231124212317ENS.Jafarian-NaminFaculty of Industrial Engineering, Yazd University, Yazd, IranAPakzadDepartment of Indutrial Engineering, Kosar University of Bojnord, Bojnord,
IranM.S.M.S. Fallah NezhadFaculty of Industrial Engineering, Yazd University, Yazd, IranJournal Article20170202Acceptance sampling (AS), as one of the main fields of statistical quality control (SQC),<br />involves a system of principles and methods to make decisions about accepting or rejecting a<br />lot or sample. For attributes, the design of a single AS plan generally requires determination of<br />sample size, and acceptance number. Numerous approaches have been developed for<br />optimally selection of design parameters in last decades. We develop a multi-objective<br />economic-statistical design (MOESD) of the single AS plan to reach a well-balanced<br />compromise between cost and quality features. Moreover, a simple and efficient DEA-based<br />algorithm for solving the model is proposed. Through a simulation study, the efficiency of<br />proposed model is illustrated. Comparisons of optimal designs obtained using MOESD to<br />economic model with statistical constraints reveals enhanced performance of the multiobjective<br />model.International Journal of Data Envelopment Analysis2345-458X5220170501Interval Malmquist Productivity Index in DEA1243125612318ENN.AghayiDepartment of Mathematics, Ardabil Branch, Islamic Azad University, Ardabil, IranB.H.MalekiDepartment of Mathematics, Ardabil Branch, Islamic Azad University, Ardabil, IranJournal Article20170116Data envelopment analysis is a method for evaluating the relative efficiency of a collection of decision making units. The DEA classic models calculate each unit’s efficiency in the best condition, meaning that finds a weight that the DMU is at its maximum efficiency. In this paper, utilizing the directional distance function model in the presence of undesirable outputs, the efficiency of each unit has been calculated in the best and worst condition and an efficiency interval for each DMU is designated and then with aid from these efficiency interval, we present an interval for each unit with a proportionate Malmquist productivity index, that these intervals indicate the progression or regression of each DMU.International Journal of Data Envelopment Analysis2345-458X5220170501Efficiency analysis in multi-stage network DEA-R models1257127613490ENMohammad RezaMozaffariDepartment of Mathematics, Shiraz Branch, Islamic Azad University, Shiraz, IranMasoudSaneiIslamic Azad Univercity, Central Tehran BranchJosefJablonskyDepartment of Econometrics, University of Economics, Prague, Czech Republic.Journal Article20161120In many organizations and financial institutions, it is in many cases more cost and time efficient to access ratio data. Therefore, it is of great importance to evaluate the performance of decision-making units (DMUs) which only have access to ratios of inputs to outputs or vice versa (for instance, ratio of employees to students, ratio of assets to liabilities and ratio of doctors to patients). In this paper, we will propose two-stage network DEA-R model with multi-objective linear programming (MOLP) structures. Then, introducing a production possibility set (PPS) in each network stage, we will compare efficiency values in network DEA and DEA-R. In the end, through an applied study on 22 medical centers which treat special patients in three stages, we will suggest an output-oriented multi-stage network DEA-R model under assumption of CRS technology. The medical centers are evaluated in all three stages based on overall network efficiency. The results of the analysis are presented and a future research in this field is discussed in the final section of the paper.International Journal of Data Envelopment Analysis2345-458X5220170501A general Approach to find Non-Zero Multiplier Weights in DEA1277129013492ENF.MoradiDepartment of Mathematics, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.S.ShahghobadiDepartment of Mathematics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.Journal Article20161014Data Envelopment Analysis (DEA) models can be stated as two mutually dual linear programs referred to as the envelopment and multiplier models. The multiplier models are stated in terms of variable input and output weights (multipliers). Zero multiplier weight for an input or output causes efficient problems in multiplier model. This paper concentrates on a previously proposed DEA model developed by Wang and Chin (2010) and later improved by Wang et al. (2011) to find non-zero multi-plier weights. We will show that these models reveal shortcoming for certain classes of DMUs. In addition, we propose a general developed model to find a maximal element for a multiplier DEA model.