Data Envelopment Analysis, DEA
Weak Disposability in DEA-Based Re-Allocation Resources Model Aiming to Reduce Energy Consumption and CO2 Pollution

Sima Madadi; Farhad Hosseinzadeh Lotfi; Mehdi Fallah Jellodar; Mohsen Rostamy-Malkhalifeh

Articles in Press, Accepted Manuscript, Available Online from 19 June 2022

  We developed a DEA-based resource re-allocation model based on environmental DEA technology for organizations with a central decision-making environment. The proposed model considered a weak disposability axiom for undesirable outputs and combined data envelopment analysis (DEA) with multiple-objective ...  Read More

Case studies in industry and services
Bi-Level Non-radial Network DEA Model for Evaluating Performance of Bank Branches

Kh. Ghaziyani; farhad hosseinzadeh Lotfi; Sohrab Kordrostami; alireza amirteimoori

Articles in Press, Accepted Manuscript, Available Online from 13 September 2023

  Today, one of the main problems in many organizations such as banks with many branches, is that the method of evaluating them is not correct. The traditional techniques used to evaluate performance are often single-level and do not provide the manager with enough information to identify the inefficiency ...  Read More

Game theory
Equitable resource allocation combining coalitional game and data envelopment analysis

Fatemeh Ghaeminasab; Mohsen Rostamy-Malkhalifeh; Farhad Hosseinzadeh Lotfi; Mohammad-Hasan Behzadi; Hamidreza Navidi

Volume 10, Issue 4 , October 2023, , Pages 541-552

  In this paper, while taking into account the cooperative relationships between units, the problem of revenue allocation is considered as a coalitional game. In order for the allocation to be equitable, by relying on the concept of DEA efficiency, a new characteristic function is presented, and then using ...  Read More

Data Envelopment Analysis, DEA
Cost Efficiency in the Presence of Time Dependent Prices

Jafar Pourmahmoud; Naser Kaheh; Farhad Hosseinzadeh Lotfi

Volume 10, Issue 1 , March 2023, , Pages 84-96

  In traditional cost-efficiency models, inputs and outputs, as well as input prices were known as constant values for each decision-making unit In our daily applications, however, market entry prices vary at different times. In other words, input prices for decision-making units (DMUs) are time dependent. ...  Read More

Data Envelopment Analysis, DEA
Classifying flexible and integer data in two-stage network data envelopment analysis

Seyede Nasrin Hosseini Monfared; Farhad Hosseinzadeh Lotfi; Mohammad Reza Mozaffari; Mohsen Rostamy Malkhalifeh

Volume 8, Issue 3 , September 2021, , Pages 270-289

  In conventional DEA models, it is supposed real-valued inputs and outputs while every measure must be determined as an input or output. However, in some cases, there are flexible measures which can only take integer values in two-stage network DEA. In all previous researches has not been mentioned the ...  Read More

Introducing a nonlinear programming model and using genetic algorithm to rank the alternatives in analytic hierarchy process

Sahar Khoshfetrat; Farhad Hosseinzadeh Lotfi

Volume 1, Issue 1 , March 2014, , Pages 12-18

  As ranking is one of the most important issues in data envelopment analysis (DEA), many researchers have comprehensive studies on the subject and presented different approaches. In some papers, DEA and Analytic hierarchy process (AHP) are integrated to rank the alternatives. AHP utilizes pairwise comparisons ...  Read More