Research Paper Data Envelopment Analysis, DEA
Technical analysis of petrochemical industries of Iran using a network data envelopment analysis model

Amir Reza Bazargan; Seyyed Esmaeil Najafi; Farhad Hosseinzadeh Lotfi; Mohammad Fallah

Volume 12, Issue 4 , December 2023, Pages 337-363

  The data envelopment analysis method is commonly used to measure efficiency. An estimate of the relative efficiency of this model is derived by calculating the ratio between inputs and outputs. Data envelopment analysis models can also be applied to network structures due to the extension of these models. ...  Read More

Research Paper Business Analytics
Ranking of companies in generating operating cash flows based on data envelopment analysis

Leila Negahban; Bahman Banimahd; Seyed Hossein Hosseini; Azam Shokri Cheshmeh Sabzi

Volume 12, Issue 4 , December 2023, Pages 364-374

  The purpose of this research is to evaluate and rank the efficiency of pharmaceutical companies in creating operational cash flows in line with the objectives of financial reporting. The research method for collecting theoretical bases and research data is library studies. In this research, in order ...  Read More

Research Paper Supply chain management
Development a forward-reverse network optimization model with delay reduction and multistage fuzzy demand satisfaction policy

Vajiheh Torkian; Amir Abbas Shojaie; Omid Boyer Hassani

Volume 12, Issue 4 , December 2023, Pages 375-387

  Supply chain management is a process in which a number of organizations work together as a supply chain until the raw materials reach the manufacturer and finally, a valuable product is provided to the end consumer. With the increase in population and the increase in environmental sensitivities, the ...  Read More

Research Paper Economics
Evaluation of household expenditure in the united states: pre-covid and post-covid statistical analysis

Mobasshira Zaman

Volume 12, Issue 4 , December 2023, Pages 388-396

  The COVID-19 pandemic has caused unprecedented disruption to the global economic structure, resulting in significant changes in spending patterns for households worldwide. Developed countries like the United States have been affected as well, struggling to return to pre-pandemic stable economic situations. ...  Read More

Research Paper Inventory, logistics, and transportation
A new efficient genetic algorithm-Taguchi-based approach for multi-period inventory routing problem

Amin Farahbakhsh; Amir Saman Kheirkhah

Volume 12, Issue 4 , December 2023, Pages 397-413

  The inventory routing problem arises from the combination of the vehicle routing problem and the vendor-managed inventory problem. In this paper, we present a mathematical model and a novel genetic algorithm for solving the multi-period inventory routing problem. The objective is to supply products to ...  Read More

Research Paper Inventory, logistics, and transportation
A proportionately increased small and equal batch delivery under consignment stock agreement for a single vendor, multiple buyers supply chain system

Kehinde Adegbola; Abdulrakib Abdulrahman

Volume 12, Issue 4 , December 2023, Pages 414-430

  Consignment stocks agreement had been very useful in inventory control. The benefit ranges from improved cash flow, reduced risk level, savings on investment, reduced ownership cost, low inventory carrying cost and regular restocking to mention few. Also, small batch delivery is an effective strategy ...  Read More

Research Paper Scheduling
A vibration damping optimization algorithm to solve flexible job shop scheduling problems with reverse flows

Esmaeil Mehdizadeh; Fatemeh Soleimaninia

Volume 12, Issue 4 , December 2023, Pages 431-449

  The Flexible Job shop Scheduling Problem (FJSP), as a Production Scheduling Problem (PSP), is generally an extension of the Job shop Scheduling Problem (JSP). In this paper, the FJSP with reverse flow consisting of two flows of jobs (direct and reverse) at each stage is studied; the first flow initiates ...  Read More