Omega

1973 - 2025

Current editor(s): B. Lev

From Elsevier
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Volume 103, issue C, 2021

Parameter uncertainty in estimation of portfolio efficiency: Evidence from an interval diversification-consistent DEA approach

Helu Xiao, Tiantian Ren, Zhongbao Zhou and Wenbin Liu

A Stochastic Multi-criteria divisive hierarchical clustering algorithm

Alessio Ishizaka, Banu Lokman and Menelaos Tasiou

Optimal use of downward substitution in a manufacturing operation subject to uncertainty

Nickolas K. Freeman, Arunachalam Narayanan and Burcu B. Keskin

Benefit-of-the-doubt approach to workload indicators: Simplifying the use of case weights in court evaluations

Peter Bogetoft and Jesper Wittrup

Combining social network and data envelopment analysis: A proposal for a Selection Employment Contracts Effectiveness index in healthcare network applications

Simone Cristina de Oliveira Gobbo, Enzo Barberio Mariano and José Alcides Gobbo

Data-driven robust strategies for joint optimization of rail renewal and maintenance planning

Reza Mohammadi, Qing He and Mark Karwan

Multiple criteria hierarchy process for sorting problems under uncertainty applied to the evaluation of the operational maturity of research institutions

Renata Pelissari, Alvaro José Abackerli, Sarah Ben Amor, Maria Célia Oliveira and Kleber Manoel Infante

The impact of subsidies in a transboundary pollution game with myopic players

Liming Li and Weidong Chen

Enhancing optimization planning models for health human resources management with foresight

Mário Amorim-Lopes, Monica Oliveira, Mariana Raposo, Teresa Cardoso-Grilo, António Alvarenga, Marta Barbas, Marco Alves, Ana Vieira and Ana Barbosa-Póvoa

Modelling the semi-additive production technology in DEA

Mojtaba Ghiyasi and Wade D. Cook

Stability in the hospitals/residents problem with couples and ties: Mathematical models and computational studies

Maxence Delorme, Sergio García, Jacek Gondzio, Joerg Kalcsics, David Manlove and William Pettersson

Production coopetition strategies for an FV automaker and a competitive NEV automaker under the dual-credit policy

Yongwei Cheng and Tijun Fan

Designing optimal masks for a multi-object spectrometer

Juan-José Salazar-González

A fast and effective MIP-based heuristic for a selective and periodic inventory routing problem in reverse logistics

Leopoldo E. Cárdenas-Barrón and Rafael A. Melo

Slacks-based measures of efficiency and super-efficiency in presence of nonpositive data

Hsuan-Shih Lee

How to compete with a supply chain partner: Retailer's store brand vs. manufacturer's encroachment

Zhe Zhang, Huaming Song, Xiaoyu Gu, Victor Shi and Jing Zhu

Optimal pricing of customized bus services and ride-sharing based on a competitive game model

Yanan Li, Xiang Li and Sicheng Zhang

Liner alliances with heterogeneous price level and service competition: Partial vs. full

Zhuzhu Song, Wansheng Tang and Ruiqing Zhao

An opinion-driven decision-support framework for benchmarking hotel service

Jaehun Park and Byung Kwon Lee

The impacts of sales efforts and mode of payment on the competition between agent and retailer

Housheng Duan, Sijing Deng, Haiqing Song and Jiayan Xu

An inventory model under linked-to-order hybrid partial advance payment, partial credit policy, all-units discount and partial backlogging with capacity constraint

Md. Al-Amin Khan, Ali Akbar Shaikh and Leopoldo Eduardo Cárdenas-Barrón

Should original equipment manufacturer assist noncompetitive contract manufacturer to expand capacity?

Binwei Dong, Wansheng Tang, Chi Zhou and Yufei Ren

A dynamic lot size model with perishable inventory and stockout

Fuying Jing and Xiangrui Chao

Exact and heuristic solution approaches for the airport gate assignment problem

Özlem Karsu, Meral Azizoğlu and Kerem Alanlı

Dynamic innovation and pricing decisions in a supply-Chain

Jian Song, Anshuman Chutani, Alexandre Dolgui and Liang Liang

Online selling through O2O platform or on your own? Strategic implications for local Brick-and-Mortar stores

Bo He, Varun Gupta and Prakash Mirchandani

Effects of in-house production on channel structures in a co-opetitive supply chain under supply uncertainty

Feng Lin, Xibei Qin, Xujin Pu, Weiwei Zhu and Xingxuan Zhuo

Inverse Frontier-based Benchmarking for Investigating the Efficiency and Achieving the Targets in the Vietnamese Education System

Minh Hanh Le, Mohsen Afsharian and Heinz Ahn

Downstream entry revisited: Economic effects of entry in vertically-related markets

Arda Yenipazarli

Robust facility location under demand uncertainty and facility disruptions

Chun Cheng, Yossiri Adulyasak and Louis-Martin Rousseau

Solutions for districting problems with chance-constrained balancing requirements

Antonio Diglio, Juanjo Peiró, Carmela Piccolo and Francisco Saldanha-da-Gama

Internal resource requirements: The better performance metric for truck scheduling?

Pascal Wolff, Simon Emde and Hans-Christian Pfohl

Mathematical models for a cutting problem in the glass manufacturing industry

F. Parreño and R. Alvarez-Valdes

A Heuristic Algorithm for solving a large-scale real-world territory design problem

Lin Zhou, Lu Zhen, Roberto Baldacci, Marco Boschetti, Ying Dai and Andrew Lim

The dual-serving problem: What is the right choice of inventory strategy?

Mojtaba Mahdavi and Tava Lennon Olsen

An expanded robust optimisation approach for the berth allocation problem considering uncertain operation time

Xi Xiang and Changchun Liu

Optimal energy management and operations planning in seaports with smart grid while harnessing renewable energy under uncertainty

Çağatay Iris and Jasmine Siu Lee Lam

Integer programming formulations in sequencing with total earliness and tardiness penalties, arbitrary due dates, and no idle time: A concise review and extension

Bahram Alidaee, Haitao Li, Haibo Wang and Norman Womer

Offering return-freight insurance or not: Strategic analysis of an e-seller's decisions

Zhongwei Chen, Zhi-Ping Fan and Xuan Zhao

Optimal operations planning of electric autonomous vehicles via asynchronous learning in ride-hailing systems

Guodong Yu, Aijun Liu, Jianghua Zhang and Huiping Sun

Brand-owners’ vertical and horizontal alliance strategies facing dominant retailers: Effect of demand substitutability and complementarity

Xiaopo Zhuo, Fan Wang and Baozhuang Niu

Electricity prices and tariffs to keep everyone happy: A framework for fixed and nodal prices coexistence in distribution grids with optimal tariffs for investment cost recovery

Iacopo Savelli and Thomas Morstyn

Pricing the COVID-19 vaccine: A mathematical approach

Susan E. Martonosi, Banafsheh Behzad and Kayla Cummings

Volume 102, issue C, 2021

Mixed model assembly line feeding with discrete location assignments and variable station space

Nico André Schmid, Veronique Limère and Birger Raa

Performance evaluation and improvement for ZEV credit regulation in a competitive environment

Weixiang Huang and Han Zhu

A solution algorithm for multi-period bi-level channel optimization with dynamic price-dependent stochastic demand

Reza Azad Gholami, Leif Kristoffer Sandal and Jan Ubøe

Outlier-Aware, density-Based gaze fixation identification

Wen Liu, Andrew C. Trapp and Soussan Djamasbi

The Multi-Period Workforce Scheduling and Routing Problem

G. Guastaroba, J.-F. Côté and L.C. Coelho

On guarding real terrains: The terrain guarding and the blocking path problems

Haluk Eliş, Barbaros Tansel, Osman Oğuz, Mesut Güney and Ramez Kian

Inventory routing under stochastic supply and demand

Aldair Alvarez, Jean-François Cordeau, Raf Jans, Pedro Munari and Reinaldo Morabito

Multi-criteria decision making in dynamic slotting for attended home deliveries

Magdalena A.K. Lang, Catherine Cleophas and Jan Fabian Ehmke

Should ride-sharing platforms cooperate with car-rental companies? Implications for consumer surplus and driver surplus

Xiaogang Lin, Cuiying Sun, Bin Cao, Yong-Wu Zhou and Chuanying Chen

Just-in-time two-dimensional bin packing

Sergey Polyakovskiy and M’Hallah, Rym

Optimal timing and capacity choice with taxes and subsidies under uncertainty

Alcino Azevedo, Paulo J. Pereira and Artur Rodrigues

Two-agent scheduling problems under rejection budget constraints

Daniel Oron

Cost-Based attraction recommendation for tour operators under stochastic demand

Chao Huang, Yi Ding, Weihao Hu, Yi Jiang and Yongzhen Li

Assessing product availability in omnichannel retail networks in the presence of on-demand inventory transshipment and product substitution

Shahab Derhami, Benoit Montreuil and Guilhem Bau

Solving a stochastic inland waterway port management problem using a parallelized hybrid decomposition algorithm

Amin Aghalari, Farjana Nur and Mohammad Marufuzzaman

A method to analyze the rank reversal problem in the ELECTRE II method

Xianliang Liu and Yonghao Ma

Runway scheduling during winter operations

Maximilian Pohl, Rainer Kolisch and Maximilian Schiffer

Coordination between smart distribution networks and multi-microgrids considering demand side management: A trilevel framework

Longxi Li

Optimal design of retailer-prosumer electricity tariffs using bilevel optimization

Veronika Grimm, Galina Orlinskaya, Lars Schewe, Martin Schmidt and Gregor Zöttl

Repairable spare parts provisioning for multiregional expanding fleets of equipment under performance-based contracting

Xuwei Qin, Zhong-Zhong Jiang, Minghe Sun, Liang Tang and Xiaoran Liu

Reveal or hide? Impact of demonstration on pricing decisions considering showrooming behavior

Yanran Li, Bo Li, Wei Zheng and Xue Chen

Daily-deal market with consumer retention: Price discrimination or quality differentiation

Yao Tang, Rachel R. Chen and Xu Guan

Fairness models for multi-agent kidney exchange programmes

Xenia Klimentova, Ana Viana, João Pedro Pedroso and Nicolau Santos

Supply chain with random yield and financing

Xiaoyong Yuan, Gongbing Bi, Yalei Fei and Lindong Liu

The value of aggregate service levels in stochastic lot sizing problems

Narges Sereshti, Yossiri Adulyasak and Raf Jans

Stochastic premarshalling of block stacking warehouses

Vittorio Maniezzo, Marco A. Boschetti and Walter J. Gutjahr

Managing consumer returns with technology-enabled countermeasures

M. Serkan Akturk, Michael Ketzenberg and Barış Yıldız

Risk-aversion in data envelopment analysis models with diversification

Lukáš Adam and Martin Branda

Case study on scheduling cyclic conveyor belts

Felix Bock and Henning Bruhn

A case-based reasoning approach to solve the vehicle routing problem with time windows and drivers’ experience

Olivier Quirion-Blais and Lu Chen

Optimising the assignment of swabs and reagent for PCR testing during a viral epidemic

Alberto Santini

Performance evaluation of two-stage network structures with fixed-sum outputs: An application to the 2018winter Olympic Games

Yongjun Li, Jin Liu, Sheng Ang and Feng Yang

Engaging suppliers for reliability improvement under outcome-based compensations

Dong Li and Nishant Mishra

Surgery scheduling in outpatient procedure centre with re-entrant patient flow and fuzzy service times

Kai Wang, Hu Qin, Yun Huang, Mengwen Luo and Lei Zhou

Matching and pricing in ride-sharing: Optimality, stability, and financial sustainability

Pengyu Yan, Chung-Yee Lee, Chengbin Chu, Cynthia Chen and Zhiqin Luo

Managing supply risk: Robust procurement strategy for capacity improvement

Yi Li and Biying Shou

Global optimization for bilevel portfolio design: Economic insights from the Dow Jones index

Julio González-Díaz, Brais González-Rodríguez, Marina Leal and Justo Puerto

A new non-radial directional distance model for data envelopment analysis problems with negative and flexible measures

Madjid Tavana, Mohammad Izadikhah, Mehdi Toloo and Razieh Roostaee

Inventory replenishment planning of a distribution system with storage capacity constraints and multi-channel order fulfilment

B. Dai, H.X. Chen, Y.A. Li, Y.D. Zhang, X.Q. Wang and Y.M. Deng

Poverty mitigation via solar panel adoption: Smart contracts and targeted subsidy design

Qiaozhen Guo, Qiao-Chu He, Ying-Ju Chen and Wei Huang

Collaborative real-time optimization strategy for train rescheduling and track emergency maintenance of high-speed railway: A Lagrangian relaxation-based decomposition algorithm

Huimin Zhang, Shukai Li, Yihui Wang, Lixing Yang and Ziyou Gao

Heuristics for integrated blending optimisation in a mining supply chain

Zhou Haonan, Mehran Samavati and Andrew J. Hill

An exact approach for the service network design problem with heterogeneous resource constraints

Xiangyong Li, Kai Wei, Zhaoxia Guo, Wei Wang and Y.P. Aneja

A dynamic ordering policy for a stochastic inventory problem with cash constraints

Zhen Chen and Roberto Rossi

Buffer sizing in critical chain project management by network decomposition

Bingling She, Bo Chen and Nicholas G. Hall

Use of a product service system in a competing remanufacturing market

Yu Xia, Dan Tan and Bolin Wang

Product line selection of fast-moving consumer goods

Xavier Andrade, Luís Guimarães and Gonçalo Figueira

Carbon-reducing contract design for a supply chain with environmental responsibility under asymmetric information

Jing Xia and Wenju Niu

Humanitarian facility location under uncertainty: Critical review and future prospects

Zehranaz Dönmez, Bahar Y. Kara, Özlem Karsu and Francisco Saldanha-da-Gama

LASSO+DEA for small and big wide data

Ya Chen, Mike Tsionas and Valentin Zelenyuk

A model and solution approach for store-wide shelf space allocation

Manuel Ostermeier, Tobias Düsterhöft and Alexander Hübner

Big data driven supply chain design and applications for blockchain: An action research using case study approach

Balan Sundarakani, Aneesh Ajaykumar and Angappa Gunasekaran