Omega

1973 - 2025

Current editor(s): B. Lev

From Elsevier
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Volume 50, issue C, 2015

A genetic algorithm-based decomposition approach to solve an integrated equipment-workforce-service planning problem pp. 1-17

Gang Li, Hongxun Jiang and Tian He

Measuring dynamic efficiency of highway maintenance operations pp. 18-28

Saeideh Fallah-Fini, Konstantinos Triantis, Hazhir Rahmandad and Jesus M. de la Garza

A practical model for last train rescheduling with train delay in urban railway transit networks pp. 29-42

Liujiang Kang, Jianjun Wu, Huijun Sun, Xiaoning Zhu and Bo Wang

The two-dimensional vector packing problem with piecewise linear cost function pp. 43-53

Qian Hu, Andrew Lim and Wenbin Zhu

Joint production and subcontracting planning of unreliable multi-facility multi-product production systems pp. 54-69

M. Assid, A. Gharbi and K. Dhouib

The impact of hybrid push–pull contract in a decentralized assembly system pp. 70-81

Xu Guan, Shihua Ma and Zhe Yin

Robust gate assignment procedures from an airport management perspective pp. 82-95

Mercedes E. Narciso and Miquel A. Piera

Pricing cloud services—the impact of broadband quality pp. 96-114

Sumanta Basu, Soumyakanti Chakraborty and Megha Sharma

Information sharing in a supply chain with a make-to-stock manufacturer pp. 115-125

Tian Li and Hongtao Zhang

Piecewise linear approximations for the static–dynamic uncertainty strategy in stochastic lot-sizing pp. 126-140

Roberto Rossi, Onur A. Kilic and S. Armagan Tarim

Modeling the winning seed distribution of the NCAA Division I men׳s basketball tournament pp. 141-148

Arash Khatibi, Douglas M. King and Sheldon H. Jacobson

Volume 49, issue C, 2014

Using TOPSIS for assessing the sustainability of government bond funds pp. 1-17

Amelia Bilbao-Terol, Mar Arenas-Parra, Verónica Cañal-Fernández and José Antomil-Ibias

IMP: A decision aid for multiattribute evaluation using imprecise weight estimates pp. 18-29

Alan Jessop

Planning of a decentralized distribution network using bilevel optimization pp. 30-41

Herminia I. Calvete, Carmen Galé and José A. Iranzo

Potentially self-defeating: Group buying in a two-tier supply chain pp. 42-52

Yuan Zhou and Jinxing Xie

Establishing dominance between strategies with interval judgments of state probabilities pp. 53-59

Byeong Seok Ahn and Haechurl Park

A delay-in-payment contract for Pareto improvement of a supply chain with stochastic demand pp. 60-68

Deng Gao, Xiaobo Zhao and Wei Geng

Third-party logistics selection problem: A literature review on criteria and methods pp. 69-78

Aicha Aguezzoul

Optimal responses to stockouts: Lateral transshipment versus emergency order policies pp. 79-92

Yi Liao, Wenjing Shen, Xinxin Hu and Shilei Yang

Consignment or wholesale: Retailer and supplier preferences and incentives for compromise pp. 93-106

Renato E. de Matta, Timothy J. Lowe and Dengfeng Zhang

Setting tolerance limits for statistical project control using earned value management pp. 107-122

Jeroen Colin and Mario Vanhoucke

Bidding under auctioneer default risk pp. 123-133

Panos L. Lorentziadis

Power planning in ICT infrastructure: A multi-criteria operational performance evaluation approach pp. 134-148

Sheng-Tun Li and Wei-Chien Chou

Volume 48, issue C, 2014

Stochastic efficiency analysis with a reliability consideration pp. 1-9

Guiwu Wei, Jian Chen and Jiamin Wang

Non-convex value efficiency analysis and its application to bank branch sales evaluation pp. 10-18

Merja Halme, Pekka Korhonen and Juha Eskelinen

Responsive contingency planning in supply risk management by considering congestion effects pp. 19-35

Alireza Ebrahim Nejad, Iman Niroomand and Onur Kuzgunkaya

An access network design problem with end-to-end QoS constraints pp. 36-48

Chanwoo Park, Youngho Lee, Youngjin Kim and Gigyoung Park

Measurement of tourist hotels׳ productive efficiency, occupancy, and catering service effectiveness using a modified two-stage DEA model in Taiwan pp. 49-59

Chin-wei Huang, Foo Nin Ho and Yung-Ho Chiu

Planning a sustainable reverse logistics system: Balancing costs with environmental and social concerns pp. 60-74

Tânia Rodrigues Pereira Ramos, Maria Isabel Gomes and Ana Paula Barbosa-Póvoa

Credibility-based rescheduling model in a double-track railway network: a fuzzy reliable optimization approach pp. 75-93

Lixing Yang, Xuesong Zhou and Ziyou Gao

Storage constrained vendor managed inventory models with unequal shipment frequencies pp. 94-106

Moncer Hariga, Mehmet Gumus and Abdelkader Daghfous

Volume 47, issue C, 2014

On the need for reform of the Portuguese judicial system – Does Data Envelopment Analysis assessment support it? pp. 1-16

Sérgio Santos and Carla A.F. Amado

Hybridization of tabu search with feasible and infeasible local searches for periodic home health care logistics pp. 17-32

Ran Liu, Xiaolan Xie and Thierry Garaix

Benefit-of-the-doubt aggregation and the diet problem pp. 33-35

Rolf Färe and Giannis Karagiannis

Economic efficiency when prices are not fixed: disentangling quantity and price efficiency pp. 36-44

Maria Silva and Emmanuel Thanassoulis

Assigning machines to incomparable maintenance strategies with ELECTRE-SORT pp. 45-59

Alessio Ishizaka and Philippe Nemery

Vendor managed inventory in tramp shipping pp. 60-72

Magnus Stålhane, Henrik Andersson, Marielle Christiansen and Kjetil Fagerholt

Integration of sale and leaseback in the optimal design of supply chain networks pp. 73-89

Pantelis Longinidis and Michael C. Georgiadis

Multi-period efficiency measurement in data envelopment analysis: The case of Taiwanese commercial banks pp. 90-98

Chiang Kao and Shiang-Tai Liu

Approaches to real world two-dimensional cutting problems pp. 99-115

Enrico Malaguti, Rosa Medina Durán and Paolo Toth

Real-time dynamic pricing in a non-stationary environment using model-free reinforcement learning pp. 116-126

Rupal Rana and Fernando S. Oliveira

Universal supplier selection via multi-dimensional auction mechanisms for two-way competition in oligopoly market of supply chain pp. 127-137

Vipul Jain, Gajanan B. Panchal and Sameer Kumar

Volume 45, issue C, 2014

Efficiency decomposition in network data envelopment analysis with slacks-based measures pp. 1-6

Chiang Kao

The bike sharing rebalancing problem: Mathematical formulations and benchmark instances pp. 7-19

Mauro Dell'Amico, Eleni Hadjicostantinou, Manuel Iori and Stefano Novellani

Absolute return portfolios pp. 20-41

C.A. Valle, N. Meade and John Beasley

A novel discrete artificial bee colony algorithm for the hybrid flowshop scheduling problem with makespan minimisation pp. 42-56

Quan-Ke Pan, Ling Wang, Jun-Qing Li and Jun-Hua Duan

Impact of secondary market on consumer return policies and supply chain coordination pp. 57-70

Ximin Huang, Jia-Wen Gu, Wai-Ki Ching and Tak Kuen Siu

Locating mobile facilities in railway construction management pp. 71-79

Hüseyin Güden and Haldun Süral

Combining forecasts of electricity consumption in China with time-varying weights updated by a high-order Markov chain model pp. 80-91

Weigang Zhao, Jianzhou Wang and Haiyan Lu

Competitive supply chain network design: An overview of classifications, models, solution techniques and applications pp. 92-118

Reza Zanjirani Farahani, Shabnam Rezapour, Tammy Drezner and Samira Fallah

Multi-objective permutation flow shop scheduling problem: Literature review, classification and current trends pp. 119-135

Mehmet Mutlu Yenisey and Betul Yagmahan