Omega-international Journal of Management Science最新文献

A novel linear-integral TOPSIS approach to mars mission simulator planning at NASA NASA火星任务模拟器规划中的一种新的线性积分TOPSIS方法

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-27 DOI: 10.1016/j.omega.2025.103350

Madjid Tavana , Mehdi Soltanifar , Andreas Dellnitz

{"title":"A novel linear-integral TOPSIS approach to mars mission simulator planning at NASA","authors":"Madjid Tavana , Mehdi Soltanifar , Andreas Dellnitz","doi":"10.1016/j.omega.2025.103350","DOIUrl":"10.1016/j.omega.2025.103350","url":null,"abstract":"<div><div>Decision-makers are often subject to cognitive biases when making complex decisions. One such bias is apophenia (or pareidolia concerning visual information), where people perceive patterns that do not exist. Everyone experiences this phenomenon to varying degrees. Decision-makers often rely on cognitive shortcuts (heuristics) that deviate from Euclidean distances, perceiving relative rather than absolute distances in estimating the proximity of objects in multi-attribute decision-making. For instance, if a trajectory closely resembles a reference trajectory, the brain may perceive it as closer, even if another trajectory is technically closer in Euclidean terms but follows a more divergent path. Euclidean distances are used to assess the proximity between alternatives in the conventional Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS). However, this approach may not align with how the human brain processes complex information due to the limitations of Euclidean measures in capturing cognitive biases. Therefore, we propose a new linear-integral TOPSIS approach that actively integrates this human tendency to perceive patterns, enhancing its compatibility with cognitive biases. As the decision maker processes information, the method becomes influenced by the sequence dependencies among the attributes. We demonstrate that this issue can be linked to a specific version of the traveling salesperson problem when determining the best and worst sequence orders for processing an alternative’s attributes. To address this, we rely on the sequence induced by the preference structure and solve an open traveling salesperson problem to substantiate the robustness of the resulting sequence. We demonstrate the applicability of the new linear-integral TOPSIS to the Mars mission simulator planning at NASA’s mission directorate at Johnson Space Center.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"137 ","pages":"Article 103350"},"PeriodicalIF":6.7,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distributionally robust alternative service design responding to joint closures in multimodal transit systems 响应多式联运系统联合关闭的分布式健壮替代服务设计

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-25 DOI: 10.1016/j.omega.2025.103340

Hankun Zheng , Huijun Sun , Peiling Dai , Jianjun Wu

{"title":"Distributionally robust alternative service design responding to joint closures in multimodal transit systems","authors":"Hankun Zheng , Huijun Sun , Peiling Dai , Jianjun Wu","doi":"10.1016/j.omega.2025.103340","DOIUrl":"10.1016/j.omega.2025.103340","url":null,"abstract":"<div><div>Despite their occurrence in practice and typically severe consequences, little attention has been given to joint disruptions in multimodal transit systems. To bridge this gap, we focus on joint closures of metro stations and urban roads, a common type of joint disruptions that simultaneously affects multiple metro lines and bus routes. The proposed approach integrates the optimizations of adaptive bus routes, service departure times, and passenger demand assignment to design alternative metro and bus services for passengers. The coordination of alternative services is ensured both within individual transit systems and across the entire multimodal transit system. Uncertainties in passenger demand and bus travel time are duly incorporated using finite stochastic scenarios. Given the partially known uncertainty information, we develop a distributionally robust optimization (DRO) model to address the problem. The worst-case mean-conditional value-at-risk criterion is utilized to balance operators’ risk-averse attitude against the expected total passenger and operation costs. Afterwards, we devise a polyhedral ambiguity set to obtain a computationally tractable form of the DRO model and propose a tailored adaptive large neighborhood search heuristic for model solving. Finally, we test our methodology with mid-scale and large-scale cases in Beijing. Numerical results show that the DRO approach produces more robust solutions with superior out-of-sample performance compared to stochastic programming, with minimal additional cost. Besides, the integrated optimization of alternative metro and bus services plays a critical role in reducing total cost and enhancing service quality for passengers. Based on these numerical results, we conclude several valuable managerial insights for real-world applications.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"137 ","pages":"Article 103340"},"PeriodicalIF":6.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maintaining fairness in stochastic chemotherapy scheduling 维持随机化疗计划的公平性

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-23 DOI: 10.1016/j.omega.2025.103338

Batuhan Çelik , Serhat Gul , Özlem Karsu

{"title":"Maintaining fairness in stochastic chemotherapy scheduling","authors":"Batuhan Çelik , Serhat Gul , Özlem Karsu","doi":"10.1016/j.omega.2025.103338","DOIUrl":"10.1016/j.omega.2025.103338","url":null,"abstract":"<div><div>Chemotherapy scheduling is hard to manage under uncertainty in infusion durations, and focusing on expected performance measure values may lead to unfavorable outcomes for some patients. In this study, we aim to design daily patient appointment schedules considering a fair environment regarding patient waiting times. We propose using a metric that encourages fairness and efficiency in waiting time allocations. To optimize this metric, we formulate a two-stage stochastic mixed-integer nonlinear programming model. We employ a binary search algorithm to identify the optimal schedule, and then propose a modified binary search algorithm (MBSA) to enhance computational capability. Moreover, to address stochastic feasibility problems at each MBSA iteration, we introduce a novel reduce-and-augment algorithm that utilizes scenario set reduction and augmentation methods. We use real data from a major oncology hospital to show the efficacy of MBSA. We compare the schedules identified by MBSA with both the baseline schedules from the oncology hospital and those generated by commonly employed scheduling heuristics. Finally, we highlight the significance of considering uncertainty in infusion durations to maintain fairness while creating appointment schedules.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"137 ","pages":"Article 103338"},"PeriodicalIF":6.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategic pricing and quality discrimination in presence of different customer incentive programs 针对不同的客户激励方案，进行战略定价和质量歧视

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-21 DOI: 10.1016/j.omega.2025.103336

Xu Wang, Siyu Du

{"title":"Strategic pricing and quality discrimination in presence of different customer incentive programs","authors":"Xu Wang, Siyu Du","doi":"10.1016/j.omega.2025.103336","DOIUrl":"10.1016/j.omega.2025.103336","url":null,"abstract":"<div><div>By leveraging consumers’ historical data, firms can implement price discrimination based on individual characteristics. However, beyond mere price differentiation, firms may also employ quality discrimination as a means to either retain old customers or attract new ones, which we call customer incentive programs. Therefore, this study investigates the impact of different customer incentive programs on firms’ decisions, profits, and consumer surplus. Our findings reveal several key insights. First, contrary to conventional wisdom, firms may simultaneously offer lower prices and quality-improved products to new customers. Second, we discover that rewarding old customers is suboptimal for firms. When consumer patience is sufficiently high, foregoing quality discrimination emerges as a more advantageous method. Conversely, in scenarios where consumer patience is limited, rewarding new customers becomes the preferable option. Finally, permitting firms to utilize consumer data under specific conditions may be more beneficial for consumers overall from a policymaker’s perspective. However, firms might strategically choose to remain ignorant, opting not to utilize this data even when permitted. This paper provides valuable insights and recommendations for designing firms’ customer incentive programs and government data compliance policies.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"137 ","pages":"Article 103336"},"PeriodicalIF":6.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

R&D and operational efficiency in China’s innovative high-tech enterprises: Empirical analysis with two-stage slack based measure data envelopment analysis and threshold regression 中国创新型高科技企业的研发与运营效率：基于两阶段松弛度量数据包络分析和门槛回归的实证分析

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-18 DOI: 10.1016/j.omega.2025.103342

Nannan Liang , Yu Shi , Yao Chen

{"title":"R&D and operational efficiency in China’s innovative high-tech enterprises: Empirical analysis with two-stage slack based measure data envelopment analysis and threshold regression","authors":"Nannan Liang , Yu Shi , Yao Chen","doi":"10.1016/j.omega.2025.103342","DOIUrl":"10.1016/j.omega.2025.103342","url":null,"abstract":"<div><div>This study applies a two-stage slack-based measure data envelopment analysis (SBM-DEA) model to evaluate the micro-level R&D and operational efficiency of 445 listed innovative high-tech enterprises in China's science and technology sector. A threshold regression model is then used to explore the impact of R&D investment intensity variables, such as R&D investment personnel intensity, R&D investment funds intensity and government subsidies intensity, and enterprise scale on efficiency. The findings indicate that the R&D and operational efficiency of China's innovative high-tech enterprises is generally low, with particularly significant room for improvement in R&D efficiency. Among the influencing factors, R&D personnel intensity and enterprise scale both have a significant negative impact on R&D activities and a significant positive impact on operational activities. Meanwhile, enterprise scale exhibits a single threshold effect on both R&D and operational efficiency. When the scale is below or above the threshold, the direction of the effect on efficiency remains the same, but the magnitude differs. Finally, government subsidies intensity did not significantly impact R&D and operational activities and failed to achieve effective incentives or generate positive effects.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103342"},"PeriodicalIF":6.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovation and product positioning: When to add or replace 创新与产品定位：何时添加或替换

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-15 DOI: 10.1016/j.omega.2025.103327

Anne G. Balter , Cláudia Nunes , Diogo Pereira , Peter M. Kort

引用次数: 0

Collaborative collective action in sustainability initiatives 可持续发展倡议中的协作集体行动

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-14 DOI: 10.1016/j.omega.2025.103337

Jen-Yi Chen , Moonwon Chung , Chien-Hui Wang

{"title":"Collaborative collective action in sustainability initiatives","authors":"Jen-Yi Chen , Moonwon Chung , Chien-Hui Wang","doi":"10.1016/j.omega.2025.103337","DOIUrl":"10.1016/j.omega.2025.103337","url":null,"abstract":"<div><div>Sustainability is important but costly for most companies. This paper explores the collective action problem facing competing brands regarding whether to collaborate (co-opetition) in sustainability initiatives. We develop a game-theoretic framework to study co-opetition by considering their market sizes, consumer segments, and loyalties, as well as the change in profit margin and investment costs when participating. We characterize the circumstances where collaborative collective action may take place, which is mainly driven by the large brand. However, when one brand becomes too large, the possibility of collaboration vanishes. A prisoner’s dilemma (collective inaction) and multi-equilibrium outcomes may arise, though some may be circumvented or intervened to attain the desired co-opetition outcome for the social good. The non-monotone reactions of the profits to various market factors imply that both the direct effect of the parameters and, more importantly, the indirect effect of the rival’s strategy should be taken as a whole when contemplating one brand’s best response to market changes. In our generalized multiple-brand extension, we find that a new type of multi-equilibrium outcome may occur but more importantly, full collaboration among a large number of competitors is unlikely to happen without interventions. Furthermore, when incorporating pricing power, we find that a higher price premium enhances the larger brand’s incentive to adopt sustainability, reduces the likelihood of collective inaction, and increases the prevalence of asymmetric equilibria where only one brand participates.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103337"},"PeriodicalIF":6.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inventory management with leading indicator augmented hierarchical forecasts 利用先行指标增强分层预测进行库存管理

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-12 DOI: 10.1016/j.omega.2025.103335

Yves R. Sagaert , Nikolaos Kourentzes

{"title":"Inventory management with leading indicator augmented hierarchical forecasts","authors":"Yves R. Sagaert , Nikolaos Kourentzes","doi":"10.1016/j.omega.2025.103335","DOIUrl":"10.1016/j.omega.2025.103335","url":null,"abstract":"<div><div>Inventory management relies on accurate demand forecasts. Typically, these are univariate forecasts extrapolating patterns from past demand. The disaggregate nature of demand at the Stock Keeping Unit (SKU) level makes the incorporation of external information challenging. Nonetheless, such leading information can be critical to identifying disruptions and changes in the demand dynamics. To address the inventory planning needs of a global manufacturer we propose a methodology that identifies predictively useful leading indicators at an aggregate demand level, and translates that information to SKU-demand by leveraging on the hierarchical structure of the problem. Therefore, the proposed methodology provides probabilistic forecasts enriched by leading indicator information at SKU-level, as inputs for inventory management. The methodology automatically adjusts the choice of indicators for different required lead times, with some being more informative about the short-term demand dynamics and others for the long-term. We demonstrate the benefits both in the case of backorders and lost-sales, for a variety of lead times. We further benchmark the solution against solely using leading indicators or hierarchical forecasts, demonstrating that the benefits appear primarily by the proposed blending of the modelling approaches. The outcome is demonstratively better forecasts and inventory management for the case company. Additionally, management gains insights into the main drivers of their short and long-term demand, and the ability to adjust inventory replenishment accordingly. The ability to account for diverse macro and market information in operations is paramount for firms with a global reach that face different market conditions across countries. Additionally, the transparency of which leading indicators are influencing forecasts of different lead times is conducive to increased forecast trustworthiness.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103335"},"PeriodicalIF":6.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combining state-of-the-art row generation methods for the competitive facility location problem with multinomial logit choice rule 结合最先进的行生成方法，解决具有多叉 logit 选择规则的竞争性设施选址问题

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-11 DOI: 10.1016/j.omega.2025.103339

Gonzalo Méndez-Vogel , Vladimir Marianov , Armin Lüer-Villagra

引用次数: 0

To stop or not, that is the question: When should a buyer hit the brakes for supply base rationalization? 停还是不停，这是一个问题：买家应该在什么时候为供应基础的合理化踩刹车？

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-04-11 DOI: 10.1016/j.omega.2025.103328

Wen Zhang , Elena Katok

{"title":"To stop or not, that is the question: When should a buyer hit the brakes for supply base rationalization?","authors":"Wen Zhang , Elena Katok","doi":"10.1016/j.omega.2025.103328","DOIUrl":"10.1016/j.omega.2025.103328","url":null,"abstract":"<div><div>This paper analytically and experimentally studies the buyer’s sequential decisions in supply base rationalization during re-sourcing. Starting with a mix of qualified and potential suppliers, the buyer sequentially decides whether or not to screen another randomly selected potential supplier. Adopting the frameworks of optimal stopping problem and discrete convex analysis, we characterize structural properties and identify sufficient conditions for optimal control-limit, control-band, and one-step look-ahead policies. To investigate human decision biases, we design experiments where subjects make decisions based on the one-step look-ahead policy. Results show that compared to theoretical predictions, subjects stop with too few qualified suppliers when qualification costs are low and too many when costs are high. To explain this “too few/too many” pattern, we propose a behavioral model incorporating aversion to stopping, loss aversion, and gain-seeking biases. The structural estimation reveals that while the aversion to stopping bias exists in all treatments, the loss aversion bias only occurs in high passing probability treatments, and the gain-seeking bias in low passing probability treatments. Our findings suggest that buying companies should avoid stopping too early when the qualification passing probability is high and be cautious of betting behaviors when the probability is low.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103328"},"PeriodicalIF":6.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0