• Home
  • Data envelopment analysis
    • List of Articles Data envelopment analysis

      • Open Access Article

        1 - Integrating data envelopment analysis and decision tree models In order to evaluate information technology-based units
        Amir Amini
        In order to evaluate the performance and desirability of the activities of its units each organization needs an evaluation system to assess this desirability and it is more important for financial institutions, including information technology-based companies. Data enve More
        In order to evaluate the performance and desirability of the activities of its units each organization needs an evaluation system to assess this desirability and it is more important for financial institutions, including information technology-based companies. Data envelopment analysis (DEA) is a non-parametric method to measure the effectiveness and efficiency of decision-making units (DMUs). On the other hand, data mining technique allows DMUs to explore and discover meaningful information, which had previously been hidden in large databases. . This paper presents a general framework for combining DEA and regression tree for evaluating the effectiveness and efficiency of the DMUs. Resulting hybrid model is a set of rules that can be used by policy makers to discover reasons behind efficient and inefficient DMUs. Using the proposed method for examining factors related to productivity, a sample of 18 branches of Iran insurance in Tehran was elected as a case study. After modeling based on advanced model the input oriented LVM model with weak disposability in data envelopment analysis was calculated using undesirable output, and by use of decision tree technique deals with extracting and discovering the rules for the cause of increased productivity and reduced productivity. Manuscript profile
      • Open Access Article

        2 - Integrating Data Envelopment Analysis and Decision Tree Models in Order to Evaluate Information Technology-Based Units
        Amir Amini ali alinezhad somaye shafaghizade
        In order to evaluate the performance and desirability of the activities of its units each organization needs an evaluation system to assess this desirability and it is more important for financial institutions, including information technology-based companies. Data enve More
        In order to evaluate the performance and desirability of the activities of its units each organization needs an evaluation system to assess this desirability and it is more important for financial institutions, including information technology-based companies. Data envelopment analysis (DEA) is a non-parametric method to measure the effectiveness and efficiency of decision-making units (DMUs). On the other hand, data mining technique allows DMUs to explore and discover meaningful information, which had previously been hidden in large databases. . This paper presents a general framework for combining DEA and regression tree for evaluating the effectiveness and efficiency of the DMUs. Resulting hybrid model is a set of rules that can be used by policy makers to discover reasons behind efficient and inefficient DMUs. Using the proposed method for examining factors related to productivity, a sample of 18 branches of Iran insurance in Tehran was elected as a case study. After modeling based on advanced model the input oriented LVM model with weak disposability in data envelopment analysis was calculated using undesirable output, and by use of decision tree technique deals with extracting and discovering the rules for the cause of increased productivity and reduced productivity. Manuscript profile
      • Open Access Article

        3 - A Robust Data Envelopment Analysis Method for Business and IT Alignment of Enterprise Architecture Scenarios
        Mehdi Fasanghari Mohsen  Sadegh Amalnick Reza Taghipour Anvari Jafar Razmi
        Information Technology is recognized as a competitive enabler in today’s dynamic business environment. Therefore, alliance of business and Information Technology process is critical, which is mostly emphasized in Information Technology governance frameworks. On the othe More
        Information Technology is recognized as a competitive enabler in today’s dynamic business environment. Therefore, alliance of business and Information Technology process is critical, which is mostly emphasized in Information Technology governance frameworks. On the other hand, Enterprise Architectures are deployed to steer organizations for achieving their objectives while being responsive to changes. Thus, it is proposed to align the business and Information Technology through investigating the suitability of Enterprise Architecture scenarios. In view of this fact, investigating a flexible decision making method for business and information technology alignment analysis is necessary, but it is not sufficient since the subjective analysis is always perturbed by some degree of uncertainty. Therefore, we have developed a new robust Data Envelopment Analysis technique designed for Enterprise Architecture scenario analysis. Several numerical experiments and a sensitivity analysis are designed to show the performance, significance, and flexibility of the proposed method in a real case. Manuscript profile
      • Open Access Article

        4 - Comparison of Traditional DEA Approaches to Portfolio Selection by a New Proposed Algorithm with a Case Study of Stock Selection in Tehran Stock Exchange
         
        Abstract Portfolio selection is one of the most important areas in financial decision-making; A portfolio of stocks that could bring the highest rate of return and the lowest risk investment for its owner simultaneously. However in choosing the most prefered portfolio More
        Abstract Portfolio selection is one of the most important areas in financial decision-making; A portfolio of stocks that could bring the highest rate of return and the lowest risk investment for its owner simultaneously. However in choosing the most prefered portfolio just these factors are not decisive and according to the economic environment, many factors can affect this process which should be employed. Therefore, these diversity of factors, bring to the limelight the importance of multi-criteria decision-making approaches. Data Envelopment Analysis (DEA) is one of this approaches. The main purpose of this paper is comparing the traditional DEA approaches to a new proposed algorithm. In traditional approaches simply assumed that return to scale is constant or variable. This simplification may cause large errors. In the new algorithm by analyzing the behavior of return to scale, appropriate model will be used. As a case study, the models have been solved with real data belonging to Tehran stock exchange and the results have been analyzed. Manuscript profile
      • Open Access Article

        5 - Design Evaluation System of Human Resources in the Social Security Fund of Semnan by using Fuzzy Data Envelopment Analysis
        Abolfazi Danaei Seyedeh Nazereh Seif Hashemi
        According to strategic importance of performance assessment, today a few limited numbers of organizations are going to guarantee the improvements of their personnel’s performance through an appropriate evaluation of their staff. For this purpose, the current research wa More
        According to strategic importance of performance assessment, today a few limited numbers of organizations are going to guarantee the improvements of their personnel’s performance through an appropriate evaluation of their staff. For this purpose, the current research was done in social security fund of Semnan province. This research has followed a descriptive goal (based on a case study) with a comparative logic through a limited applicable process which is considered to be as the most crucial selected method in order to extract the information of documents and the organization. Receipt, tables and diagrams are referred to as the most important tools applied in this paper. The fuzzy data envelopment analysis was selected as the most appropriate method for analyzing the data based on the studies done. The results in this research indicate that the current traditional systems of assessment in the social security fund of Semnan province does not have enough efficiency and it does not have any effect on the increase of willingness and tendency of the staff. Therefore, a new system of assessment which was compiled on the basis of the fuzzy data envelopment analysis was represented to substitute the traditional system. This model had some strong points such as the personnel assessment without the manager`s verdict, having the ability to perform under the circumstance of uncertainly, the probable presence of an ideal virtual unit, and the evaluation of personnel based on the predetermined objects. There is a hope to see this part of the health services management to become more represented in the future by the conduction of the suggested assessment system in the research society. Manuscript profile
      • Open Access Article

        6 - Selection a strategic process for applying the Lean Six Sigma methodology to improve performance by using a hybrid approach, BSC & DEA
        اردشیر  بذرکار Soleyma  Iranzadeh
        Most organizations to increase productivity and ultimately achieve sustainable competitive advantage for survival in the global business arena, focusing much of their attention to fix the problems, difficulties and weaknesses in their own systems and processes. Organiza More
        Most organizations to increase productivity and ultimately achieve sustainable competitive advantage for survival in the global business arena, focusing much of their attention to fix the problems, difficulties and weaknesses in their own systems and processes. Organizations spend a lot of time and resources to plan and develop their own strategies, but most of them fail in the implementation of the strategy.Organizations are looking for a breakthrough performance through integrated processes and technology to respond to the needs of our customers. The use of Lean Six Sigma methodology for organizations that operate in a competitive world is very functional. The importance of implementing Lean Six Sigma in an organization that is in issue or to be discovered process properly investigated and the selection process to the strategic objectives of the organization so that the organization can be targeted to improve process performance and take steps towards continuous improvement. The purpose of this research is a strategic process through the accounting department processes to improve performance through the application of Six Sigma methodology Ghavamin Bank was pure. Therefore, in this study, the criteria for the selection process to select a strategic process through six main measure Balanced Scorecard and by experts Ghavamin Bank, were identified. Then processes information related to the accounting department of the bank through a database of Ghavamin as well as interviews with experts were collected Bank. The final step using cross efficiency DEA model to assess the efficiency of the process was done, the results showed that the process was No. 18 in the first place. And as the bank's strategic process to make continuous improvement in the Lean Six Sigma methodology was introduced. Manuscript profile
      • Open Access Article

        7 - (Proposing a Rapid Plant Assessment Hybrid method using Data Envelopment Analysis for Municipalities Performance Evaluation (Case Study: Isfahan Municipality
        Rouzbeh Ghousi ali naddafpour
        Municipal is a public institution that independent, non-governmental, to the nature of the state and local performance that has the duty of the city and serve the citizens and tourists to be responsible, and as one of the principles of management, use of local resources More
        Municipal is a public institution that independent, non-governmental, to the nature of the state and local performance that has the duty of the city and serve the citizens and tourists to be responsible, and as one of the principles of management, use of local resources to its task-focused. Effective accountability and improve the efficient activities of a variety of municipal needs assessment. Evaluating the performance of the corporate sector is usually synonymous with the effectiveness of activities. One of the methods used to assess is fast evaluate. And other quantitative performance Assessment methods, data is envelopment analysis that relative to assessment of performance pay. Given the importance of evaluating the performance of municipalities, this study provides a combination of performance assessment using data envelopment analysis and rapid assessment are discussed. For this purpose, in the first chapter the words of the issue has been discussed and explained the objectives and research questions. In the second chapter the research literature and research methods described in Chapter III. In the fourth chapter the index has been developed for the rapid assessment to evaluate areas of the municipality. And by providing rapid assessment of tick box of municipalities was discussed. Which formed DEA model to evaluate the relative performance of municipalities and the number of performance in each region were determined. Then by sensitivity analysis on the model input data envelopment analysis to prioritize rapid assessment indicators, and then use the same method to determine the priority region of the municipality was the ideal option. After the above steps, in the rapid assessment survey regions 6, 11 and 12, respectively ranked first and the third & in evaluating the performance of the municipal regions of the DEA BCC using the input, the number of functional regions, including six regions units 4, 5, 8, 13, 14 and 15 were identified and in combination with problem solving method returns to scale the number of functional regions, including four units, the regions 4, 5, 8, 13, 14 and 15 were determined. After sensitivity analysis of the input variables in BCC, The effect of varying complexity and diversity management practices and continuous improvement and effective management also vary in SBM 's been more than others. The results of the rapid assessment approach by prioritizing organizational units similar to the ideal option indicated that the municipal zone 11 has a minimum distance with the ideal option and has earned first place and then in the region 6 won the second prize. Manuscript profile
      • Open Access Article

        8 - Identifying factors affecting bancassurance desks efficiency, Case study: Bank MELLAT and MA Insurance
        حمیدرضا نورعلیزاده علی  بنیادی نایینی Mohsen Sadeghi
        A majority of studies around efficiency assessment just estimate it. Indeed, they don’t address the roots of inefficiency of DMUs. These shortcomings could be resulted from silo approaches conducted by researchers. Our research aims address this gap. We propose a two-st More
        A majority of studies around efficiency assessment just estimate it. Indeed, they don’t address the roots of inefficiency of DMUs. These shortcomings could be resulted from silo approaches conducted by researchers. Our research aims address this gap. We propose a two-stage procedure in which first, the efficiency of bancassurance desks are estimated by DEA (Data Envelopment Analysis) and then, roots of inefficiency are identified by a survey designed based on enabler section of European Foundation for Quality Management model (EFQM) and conducted among bancassurance desks employees. This study is applied in terms of purpose, and mathematical as well as statistical in terms of data analysis. The population of this study consisted of all bancassurance desks of BANK MELLAT in 2015. After efficient and inefficient branches of bancassurance have been estimated and ranked, in order to identify factors affecting efficiency, a questionnaire designed according with criteria of EFQM. Reliability of questionnaire was tested by Cronbach's alpha coefficient, and normal distribution of data was tested by using the Kolmogorov-Smirnov test. The effects of variables (factors) on efficiency were evaluated via regression analysis, then obtained answers were tested for research questions. The results of ranking the impact of factors on the efficiency of bancassurance desks showed that employees, partnerships and resources, products and services, strategy, and leadership are the efficient factors, respectively. Manuscript profile
      • Open Access Article

        9 - Performance Evaluation of US Startup Accelerators Using Data Envelopment Analysis combined with Goal Programming Approach
        محمدرضا پارسانژاد   mojtab noori Seyyed Sharafoddin Hoseini Nasab seyyed rashid shahcheragh
        Startup accelerator program is a new incubation model to accelerate venture creation providing specialized mentorship, networking opportunities and financing growth driven businesses. Since emergence of the first accelerator in US in 2005, the number of seed acceleratin More
        Startup accelerator program is a new incubation model to accelerate venture creation providing specialized mentorship, networking opportunities and financing growth driven businesses. Since emergence of the first accelerator in US in 2005, the number of seed accelerating programs has quickly grown worldwide. Performance evaluation of these emerging programs not only could clarify relative success of this new incubation approach but also help out Iranian emerging accelerators to benchmark from pioneers of the industry. The evaluation could also assist startups and entrepreneurs to find out which of the existing accelerators are well-performed and thus ease decision making to select them as their incubator. So in this paper we aim to measure the performance of US top accelerators using a DEA method combined with goal programing approach. The inputs of the evaluation consist of numbers of mentors and startups, investment on each startup in average and in general, and the share of accelerator in startup company. The outputs in turn are different and include number and value of exits, and fund raising. Comparison of the final result with Seed Accelerator Ranking Project (SARP), shows different sorting and it is due the distinct evaluation approach. SARP considers only outputs of accelerators but we take in to account both outputs and inputs in the evaluation which could better illustrate the efficiency of DMUs. Manuscript profile
      • Open Access Article

        10 - Ranking suppliers in sustainable supply chain, using data envelopment analysis (Case study: Region Six Water & Wastewater Company of Tehran)
        Ali Naimi-Sadigh Arman Sajedinejad
        The supply chain management debate is one of the most important discussions in the organizations. But there are many social, economic, and environmental problems encouraging organizations to use sustainable supply chain management. Because the sustainable supply cha More
        The supply chain management debate is one of the most important discussions in the organizations. But there are many social, economic, and environmental problems encouraging organizations to use sustainable supply chain management. Because the sustainable supply chain is to improve the long-term supply chain performance to address the social, economic, and environmental problems of the traditional supply chain. Given that supply chains have grown rapidly in recent years, only paying attention to economic performance for cost optimization cannot lead to sustainable development in the supply chain, therefore, the impact of various activities involved in the supply chain on social life and Environmental issues that lead to sustainable development should also be considered. In this research, the goal of evaluation and ranking of sustainable supply chain suppliers is using the data envelopment analysis method. First of all, using previous studies in this area, we first identify the important variables of choosing sustainable supply chain suppliers according to the economic, environmental and social measures for the District 6 water and sewage company. Subsequently, according to an interview with experts in this area, we reduced the indexes. Finally, DEA models were ranked by the suppliers of sustainable supply chain water and sewage companies in District 6 of Tehran as a statistical population. Manuscript profile
      • Open Access Article

        11 - Evaluation efficiency of the internal structure of decision making units in the past, present and future using dynamic network data envelopment analysis and artificial neural network
        javad niknafs mphammadali keramati jalal haghighatmonfared
        Network data envelopment analysis models and dynamic network data envelopment analysis models cannot evaluated the future performance of the internal structure of decision-making units .In other words, all NDEA and DNDEA models evaluate the past performance of their DMU More
        Network data envelopment analysis models and dynamic network data envelopment analysis models cannot evaluated the future performance of the internal structure of decision-making units .In other words, all NDEA and DNDEA models evaluate the past performance of their DMUs and their internal structure, and measure their efficiency and inefficiency, and ultimately rank them based on that assessment .In this paper, we are going to evaluation the future efficiency of deposit and lending sections in bank branches. In order to notified inefficiencies in the internal structure of a unit before the occurrence, we will prevent it.This approach can change the role of managers from the evaluator to the planner .First, using the literature of the subject and opinion of the experts, the structure of the bank branches and the network variables were determined .Then, the values of variables are forecasted using the artificial neural network for the next two periods.Finally, a DNDEA model is formulated using the values of past periods and predicted values.Using its efficiency, its branches and its internal structure have been evaluated in the past, present and future. Manuscript profile
      • Open Access Article

        12 - Presenting a hybrid BSC-DEA Model with the presence of uncontrollable inputs and outputs to measure performance
        Ali  Namakin Seyyed Esmaeil  Najafi Mohammad Fallah Mehrdad  Javadi
        Strategy is the most crucial long-term source for the growth of organizations; and in the case, that there is a lack, in the implementation of successful strategy, even if appropriate ones are adopted, this process is incompetent. In order to execute and apply these pro More
        Strategy is the most crucial long-term source for the growth of organizations; and in the case, that there is a lack, in the implementation of successful strategy, even if appropriate ones are adopted, this process is incompetent. In order to execute and apply these programs appropriately, with the exception of the financial characteristics, organizations must also be assessed simultaneously from other facets. The Balanced Scorecard which focuses on four aspects, such as financial, as a result of performance in the past (past indexes) and the three aspects of, processes, customer, growth and learning and centers on the (future indexes), is considered as a comprehensive framework for assessing performance and the progress of strategy. Moreover, we are aware that many factors have an influence on organizations and some from the viewpoint of control get out of domain, and it is vital that from this angle, the amount of impact is assessed. The Data Envelopment Analysis (DEA) is one of the best mathematical methods to compute the efficiency of organizations. In that, the Balance Scorecard method proves to be of high standing for the evaluation of performance, one of its weak points is that, it lacks a quantitative measurement in respect to the organization’s performance in utilizing a mathematical mode. To solve this problem, DEA has been adopted. In this paper, we have attempted to combine these two abovementioned systems and efforts have been made to use BSC as a tool for designing the performance assessment indexes and from DEA, which has been used as a tool to evaluate the performance in the presence of uncontrollable indexes. Manuscript profile
      • Open Access Article

        13 - Assessment of organization efficiency using an integrated model of EFQM-network data envelopment analysis
        Alireza Khosravi Mohammad Fallah Esmaeil Najafi
        Establishment of the modern managerial systems is one of the most important steps for the excellence of organizations. The European Foundation of Quality Management (EFQM) is one of the technics that has started from Europe during the two recent decades and nowadays man More
        Establishment of the modern managerial systems is one of the most important steps for the excellence of organizations. The European Foundation of Quality Management (EFQM) is one of the technics that has started from Europe during the two recent decades and nowadays many organizations are in the process of implementing this model with- in their managerial domain. Data Envelopment Analysis (DEA) is a known nonparametric tool for evaluating the organization’s efficiency. In addition to having the capability to measure the total efficiency of a system, network DEA is able to calculate the efficiency of system components. Since EFQM can be considered as a multi-stage system, existence of network DEA along with it can improve the analysis. In this paper, an integrated model has been suggested based on EFQM and Network DEA for assessing the organization’s operation. For this purpose, at first the EFQM has been considered as a ‘four-stage system’ including leadership (the first stage), activities related to employees, policy, strategy and partnership (the second stage), processes (the third stage), and results (the fourth stage). Then considering 32 sub-criteria in EFQM, input and output variables have been determined for each one of the four stage s and on this basis math form for Network DEA model has been developed for this 4-satge system. Manuscript profile