1. Evaluation of the efficiency by DEA a case study of hospital

Kh. Ghaziyani; B. Ejlaly; S. F. Bagheri

Volume 8, Issue 3 , Summer 2019, , Pages 283-293

http://dx.doi.org/10.22105/riej.2020.211600.1106

Abstract
  Data Envelopment Analysis (DEA) is a nonparametric technique used to determine the relative efficiency of Decision Making Units (DMUs). Results from DEA analysis yield important information regarding the optimal operating capabilities of each unit. This paper studies DEA to hospital sectors and identifies ...  Read More

Data Envelopment Analysis, DEA
2. Determine the Efficiency of Time Depended Units by Using Data Envelopment Analysis

Z. Taeb; F. Hosseinzadeh Lotfi; S. Abbasbandy

Volume 6, Issue 3 , Autumn 2017, , Pages 193-201

http://dx.doi.org/10.22105/riej.2017.49156

Abstract
  In the last years, several techniques have been reported for managing a system and recognition of the related decision making units. One of them is based on mathematical modeling. Efficiency of any system is very important for all decision makings. Often applied data have time dependent inputs/ outputs. ...  Read More

Case studies in industry and services
3. Concessioning a Strategy for Enhancing Nigeria’s Airport Operational Efficiency - Lessons from Developed Countries

A. O Adeniran; K. T. Gbadamosi

Volume 6, Issue 3 , Autumn 2017, , Pages 228-245

http://dx.doi.org/10.22105/riej.2017.97500.1013

Abstract
  This study examines some concessioned airports in the developed countries and their operational performance level with a view to identifying the positive impact of concessioning on their growth, development and operational performance. The ultimate goal of the study is to provide basis for adapting the ...  Read More

Data Envelopment Analysis, DEA
4. The Methods of Ranking based Super Efficiency

M. Nayebi; F Hosseinzadeh Lotfi

Volume 5, 1(4) , Autumn 2016, , Pages 43-66

http://dx.doi.org/10.22105/riej.2017.49169

Abstract
  The science of Data Envelopment Analysis (DEA) evaluates the effectiveness of decision making units. But, one of the problems of Data Envelopment Analysis (DEA) is that, if the number of units with the same efficiency equal to one was more than one, then we couldn’t select the best between them. ...  Read More

Data Envelopment Analysis, DEA
5. Assess the efficiency and effectiveness simultaneously in a three-stage process, by using a unified model

F Hosseinzadeh Lotfi; M. Jahanbakhsh

Volume 4, 1(4) , Autumn 2015, , Pages 15-23

http://dx.doi.org/10.22105/riej.2017.49165

Abstract
  By distinction between efficiency and effectiveness scales, the aim of this paper is to propose a model that can show the differents of efficiency and effectiveness. For this purpose, enveloping form of ICCR model ,has considered to calculate simultaneously the influences of efficiency and effectiveness. ...  Read More

6. Efficiency Evaluation and Ranking of the Research Center at the Ministry of Energy: A Data Envelopment Analysis Approach

M. Fallah; S.E. Najafi

Volume 1, Issue 1 , Spring 2012, , Pages 10-18

Abstract
  Evaluating the performance of the different departments in an organization or evaluating and comparing the performance of a single department over different time points may boost the organizational efficiency and the involved industry. Making the most efficient use of the existing resources to realize ...  Read More