Omega

1973 - 2023

Current editor(s): B. Lev

From Elsevier
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Volume 119, issue C, 2023

A robust optimization problem for drone-based equitable pandemic vaccine distribution with uncertain supply

Xin Wang, Ruiwei Jiang and Mingyao Qi

Returns operations in omnichannel retailing with buy-online-and-return-to-store

Lu Yang, Xiangyong Li, Ye Xia and Y.P. Aneja

Hospital dual-channel adoption decisions with telemedicine referral and misdiagnosis

Jian-Jun Wang, Xinmou Zhang and Jim Junmin Shi

Optimal trauma care network redesign with government subsidy: A bilevel integer programming approach

Shaonan Liu, Nan Kong, Pratik Parikh and Mingzheng Wang

Energy conservation investment and supply chain structure under cap-and-trade regulation for a green product

Qingguo Bai, Jiguang Chen and Jianteng Xu

The optimal vehicle product line strategy considering product information disclosure under government carbon regulation

Zhitang Li, Cuihua Zhang, Henry Xu and Ruxia Lyu

Assessing the dynamic efficiency and technology gap of airports under different ownerships: A union dynamic NDEA approach

Ming-Miin Yu and Ipsita Rakshit

A general direct approach for decomposing profit inefficiency

Jesus T. Pastor, José Zofío, Juan Aparicio and D. Pastor

Decomposition and aggregation of tone efficiencies

Giannis Karagiannis

The effect of ICT on schools’ efficiency: Empirical evidence on 23 European countries

Anna Mergoni, Mara Soncin and Tommaso Agasisti

Time to shift the shift: Performance effects of within-day cumulative service encounters in retail stores

Chien-Ming Chen and Howard Hao-Chun Chuang

Beyond kemeny rank aggregation: A parameterizable-penalty framework for robust ranking aggregation with ties

Sina Akbari and Adolfo R. Escobedo

The discrete p-center location problem with upgrading

Laura Anton-Sanchez, Mercedes Landete and Francisco Saldanha-da-Gama

On dynamic lot sizing with bounded inventory for a perishable product

Jie Fan and Jinwen Ou

Volume 118, issue C, 2023

Optimal energy and reserve scheduling in a renewable-dominant power system

Mengling Zhang, Zihao Jiao, Lun Ran and Yuli Zhang

A consensual group ELECTRE-SORT approach considering the incomparable classes with the application of machine maintenance strategy assignment

Decui Liang, Yuanyuan Fu and Alessio Ishizaka

Linear and piecewise linear formulations for a hierarchical facility location and sizing problem

Mumtaz Karatas and Levent Eriskin

Design mechanism to coordinate a hierarchical healthcare system: Patient subsidy vs. capacity investment

Zhong-Ping Li, Chang, Aichih (Jasmine) and Zongbao Zou

A column generation-based heuristic for brachytherapy patient scheduling with multiple treatment sessions considering radioactive source decay and time constraints

Kaining Shao, Wenjuan Fan, Shaowen Lan, Min Kong and Shanlin Yang

Pay-for-performance incentives in benchmarking with quasi S-shaped technology

Qingxian An, Qiaoyu Zhang and Xiangyang Tao

Incorporating social learning into the optimal return and pricing decisions of online retailers

Huirong Fan, Moutaz Khouja, Jie Gao and Jing Zhou

Reshore or not Reshore: A Stochastic Programming Approach to Supply Chain Optimization

Tadeusz Sawik

Green reverse logistics: Exploring the vehicle routing problem with deliveries and pickups

Maria João Santos, Diana Jorge, Tânia Ramos and Ana Barbosa-Póvoa

Word-of-Mouth on Action: Analysis of Optimal Shipment Policy When Customers are Resentful

Bahar Çavdar and Nesim Erkip

Financing capacity planning with environmental considerations: A non-parametric analysis

Jiawei Yang, Yuanyu Li and Lei Fang

A novel robust exact decomposition algorithm for berth and quay crane allocation and scheduling problem considering uncertainty and energy efficiency

Kaoutar Chargui, Tarik Zouadi, V. Raja Sreedharan, Abdellah El Fallahi and Mohamed Reghioui

An active preference learning approach to aid the selection of validators in blockchain environments

Jonas Gehrlein, Grzegorz Miebs, Matteo Brunelli and Miłosz Kadziński

Which is better for competing firms with quality increasing: behavior-based price discrimination or uniform pricing?

Yu Wang, Minqiang Li, Haiyang Feng and Nan Feng

Resilient relief supply planning using an integrated procurement-warehousing model under supply disruption

Mojtaba Aghajani, S. Ali Torabi and Nezih Altay

Dynamic ordering and buyer selection policies when service affects future demand

Michalis Deligiannis and George Liberopoulos

Volume 117, issue C, 2023

The Impact of Capacity Information on Supplier Encroachment

Hamid Elahi, Hubert Pun and Salar Ghamat

A new hierarchical multiple criteria ordered clustering approach as a complementary tool for sorting and ranking problems

Raymundo Díaz, Eduardo Fernández, José-Rui Figueira, Jorge Navarro and Efrain Solares

Electricity Tariff Design via Lens of Energy Justice

Hafiz Anwar Ullah Khan, Burcin Unel and Yury Dvorkin

Constraint programming and logic-based Benders decomposition for the integrated process planning and scheduling problem

Xuedong Zhu, Junbo Son, Xi Zhang and Jianguo Wu

A strategic analysis of virtual showrooms deployment in online retail platforms

Tao Zhang, Gang Li and Giri Kumar Tayi

The Role of Ambiguity Aversion in Contract-farming Supply Chains: A Distributionally Robust Approach

Yuanguang Zhong, Ju Liu, Yong-Wu Zhou, Bin Cao and Xueliang Zheng

Deposit or reward: Express packaging recycling for online retailing platforms

Xiaolong Guo, Xiansen Li, Junsong Bian and Chenchen Yang

Continuous covering on networks: Improved mixed integer programming formulations

Mercedes Pelegrín and Liding Xu

A compensatory value function for modeling risk tolerance and criteria interactions in preference disaggregation

Xingli Wu and Huchang Liao

Regret-rejoice two-stage multiplicative DEA models-driven cross-efficiency evaluation with probabilistic linguistic information

Feifei Jin, Yuhang Cai, Ligang Zhou and Tao Ding

Efficient resilience portfolio design in the supply chain with consideration of preparedness and recovery investments

Riccardo Aldrighetti, Daria Battini and Dmitry Ivanov

Cooperative game based two-stage consensus adjustment mechanism for large-scale group decision making

Fanyong Meng, Jie Tang and Qingxian An

Lenient vs. stringent returns policies in the presence of fraudulent returns: The role of customers’ fairness perceptions

Jing Chen, Bo Yu, Bintong Chen and Zhuojun Liu

Real-time resource allocation in the emergency department: A case study

Davide Duma and Roberto Aringhieri

Reducing passenger waiting time in oversaturated metro lines with passenger flow control policy

Jinpeng Liang, Guangzhi Zang, Haitao Liu, Jianfeng Zheng and Ziyou Gao

Gains and Losses of Key Opinion Leaders’ Product Promotion in Livestream E-commerce

Baozhuang Niu, Xinhu Yu, Qiyang Li and Yulan Wang

An analysis on production and inventory models with discounted cash-flows

Yousef Ghiami

Volume 116, issue C, 2023

Multi-location newsvendor problem with random yield: Centralization versus decentralization

Li Xiao and Ce Wang

Optimal Train Rescheduling in Oslo Central Station

Carlo Mannino and Andreas Nakkerud

Playing politics or playing right: Impacts of reputation-seeking on short-term disruptions management

Xing Bao, Prakash Mirchandani, Jennifer Shang and Ramasubbu Narayan

A MILP model for quasi-periodic strategic train timetabling

Giorgio Sartor, Carlo Mannino, Thomas Nygreen and Lukas Bach

An alternating direction method of multipliers for optimizing (s, S) policies in a distribution system with joint replenishment volume constraints

Bo Dai, Haoxun Chen, Yuan Li, Yidong Zhang, Xiaoqing Wang and Yuming Deng

Dynamic fair balancing of COVID-19 patients over hospitals based on forecasts of bed occupancy

Sander Dijkstra, Stef Baas, Aleida Braaksma and Richard J. Boucherie

Store brand introduction in a dual-channel supply chain: The roles of quality differentiation and power structure

Yujie Xiao, Wenju Niu, Lianmin Zhang and Weili Xue

A stratified decision-making model for long-term planning: Application in flood risk management in Scotland

Amin Vafadarnikjoo, Konstantinos Chalvatzis, Tiago Botelho and David Bamford

Online scheduling on parallel-batch machines with periodic availability constraints and job delivery

Ran Lin, Jun-Qiang Wang and Ammar Oulamara

A novel and efficient exact technique for integrated staffing, assignment, routing, and scheduling of home care services under uncertainty

Bahman Naderi, Mehmet A. Begen, Gregory S. Zaric and Vahid Roshanaei

Post-pandemic adaptation and development of supply chain viability theory

Dmitry Ivanov and Burcu B. Keskin

Deciding on scheduling, secrecy, and patenting during the new product development process: The relevance of project planning models

Ben Hermans, Roel Leus and Bart Van Looy

Approximations for many-visits multiple traveling salesman problems

Kristóf Bérczi, Matthias Mnich and Roland Vincze

Optimal ordering quantity under stochastic time-dependent price and demand with a supply disruption: A solution based on the change of measure technique

M. Zied Babai, Dmitry Ivanov and Oh Kang Kwon

Towards increasing synergistic effects of resilience strategies in supply chain network design

Reza Alikhani, Amirhossein Ranjbar, Amir Jamali, S. Ali Torabi and Christopher W. Zobel

Incremental LNS framework for integrated production, inventory, and vessel scheduling: Application to a global supply chain

Er Raqabi El Mehdi, Himmich Ilyas, El Hachemi Nizar, El Hallaoui Issmaïl and Soumis François