Omega-international Journal of Management Science最新文献_第8页

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

Inverse optimization on the evaluations of alternatives in the Promethee II ranking method Prometheeⅱ排序法中备选方案评价的逆优化

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-03-31 DOI: 10.1016/j.omega.2025.103325

Alexandre Flachs, Yves De Smet

{"title":"Inverse optimization on the evaluations of alternatives in the Promethee II ranking method","authors":"Alexandre Flachs, Yves De Smet","doi":"10.1016/j.omega.2025.103325","DOIUrl":"10.1016/j.omega.2025.103325","url":null,"abstract":"<div><div>In multi-criteria decision aid, one usually distinguishes three main families of methods: aggregating, outranking and interactive approaches. Among the outranking methods, <span>Promethee</span> II allows decision makers to obtain a complete ranking of the alternatives regarding multiple – usually conflicting – criteria. Despite its popularity and the various theoretical contributions that have been made to it, few work has been focused on the influence of the alternatives’ evaluations on the final ranking.</div><div>In this contribution, this issue is addressed by proposing a solution to the following question: given a ranking of the alternatives, what are the minimal modifications required on the evaluations of a given alternative in order to improve its position? A novel exact algorithmic procedure is proposed to answer this question even when multiple criteria are involved. In such cases the solution takes the form of a Pareto optimal front. A proof of the correctness of the algorithm and a complexity analysis are provided. Finally, experimental tests of the method on a real life dataset is discussed along with some indications on how it could be presented to decision makers.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103325"},"PeriodicalIF":6.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760460","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

Pull–push strategies under Cournot competition 古诺竞争下的拉推策略

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-03-28 DOI: 10.1016/j.omega.2025.103304

Shujie Luan , Weili Xue , Lijun Ma , Tao Li

{"title":"Pull–push strategies under Cournot competition","authors":"Shujie Luan , Weili Xue , Lijun Ma , Tao Li","doi":"10.1016/j.omega.2025.103304","DOIUrl":"10.1016/j.omega.2025.103304","url":null,"abstract":"<div><div>We consider one supplier that decides the production quantity to serve two manufacturers, who contract with the supplier for raw materials and sell their finished products to the same uncertain market under Cournot competition. The manufacturers can either contract with the supplier by push contract or pull contract. We first establish the supplier’s production decision, and the manufacturers’ ordering and selling decisions, given both manufacturers’ contracting strategies, i.e., push contract or pull contract. We characterize the first-mover advantage of a push contract under competition, and find that when a competitor chooses a pull contract, the manufacturer with a push contract will possibly reduce his order quantity even when the supplier reduces supply to his competitor. Then, we investigate manufacturers’ equilibrium contracting strategies, and the supplier’s contracting preference. Interestingly, we find that completely symmetric manufacturers can choose different contracting strategies even when the wholesale prices for both contracts are identical. At last, we numerically characterize how competition influences the value of pull and push contracts. From the perspective of the whole supply chain, we find that a pull contract alone cannot achieve Pareto improvement, and only a mixed contract can possibly achieve Pareto improvement for reasonable wholesale prices.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103304"},"PeriodicalIF":6.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815573","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

On order smoothing interpolating the order-up-to and constant order policies 关于阶平滑插值的阶向上和常阶策略

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-03-27 DOI: 10.1016/j.omega.2025.103326

Geng Cui , Naoto Imura , Katsuhiro Nishinari , Takahiro Ezaki

{"title":"On order smoothing interpolating the order-up-to and constant order policies","authors":"Geng Cui , Naoto Imura , Katsuhiro Nishinari , Takahiro Ezaki","doi":"10.1016/j.omega.2025.103326","DOIUrl":"10.1016/j.omega.2025.103326","url":null,"abstract":"<div><div>We investigate order smoothing by interpolating two well-known inventory replenishment policies: the order-up-to policy and the constant order policy, as a means to improve supply chain performance. Order smoothing mitigates the bullwhip effect, reducing the risk of order fluctuations and inventory fluctuations for upstream supply chain echelons. Based on a two-echelon supply chain model, we explore the conditions under which order smoothing becomes desirable compared to situations without order smoothing, focusing on customer demand characteristics and smoothing strength. Our analysis examines both sinusoidal and stochastic responses to provide two distinct yet interrelated perspectives: amplitude in the frequency domain and the time domain. We highlight the significant impact of auto-correlated demand processes, which are prevalent in practice and relevant literature, on the economic benefits of order smoothing. Furthermore, we demonstrate that our proposed policy is an extension of the well-studied proportional order-up-to policy and can outperform it in certain scenarios.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"136 ","pages":"Article 103326"},"PeriodicalIF":6.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An integrated column generation solution framework for optimal aircrew vacation planning subject to seniority ranking and priority preference satisfaction 基于资历排序和优先偏好满意度的机组人员假期最优规划集成列生成解决框架

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-03-26 DOI: 10.1016/j.omega.2025.103324

George Kozanidis

{"title":"An integrated column generation solution framework for optimal aircrew vacation planning subject to seniority ranking and priority preference satisfaction","authors":"George Kozanidis","doi":"10.1016/j.omega.2025.103324","DOIUrl":"10.1016/j.omega.2025.103324","url":null,"abstract":"<div><div>We consider the vacation planning problem in the context of commercial aviation, which aims to devise optimal vacation periods for a group of crew members, while also ensuring that the efficient operation of the airline remains intact. The problem definition includes two objectives treated lexicographically, the maximization of crew satisfaction with respect to specific vacation preferences (bids) they have expressed in advance, and the minimization of the collective vacation entitlement that remains unassigned. We develop an integrated solution framework for this problem, which consists of two independent phases executed sequentially. The first one (<em>bid award phase</em>) focuses exclusively on crew satisfaction, exploiting an innovative optimization model that examines the approval of each bid individually, according to the distribution logic in effect. Each grant/reject decision is made based on whether bid acceptance retains the feasibility of this model. The second one (<em>auto-allocation phase</em>) employs a column generation solution algorithm which assigns complementary vacation periods to the crew members for maximizing the total number of vacation days assigned combinedly to the group. We report computational results on realistic problem instances with variable characteristics, which demonstrate the behavior of the proposed solution methodology, assess its computational performance, and highlight its effectiveness. These results confirm that it succeeds in identifying robust solutions accommodating the highly variable user requirements of practical airline environments in satisfactory computational times.</div></div>","PeriodicalId":19529,"journal":{"name":"Omega-international Journal of Management Science","volume":"135 ","pages":"Article 103324"},"PeriodicalIF":6.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sparse facility location and network design problems 稀疏设施选址与网络设计问题

IF 6.7 2区管理学

Omega-international Journal of Management Science Pub Date : 2025-03-26 DOI: 10.1016/j.omega.2025.103319

Gao-Xi Li , Yi Ren , Peiru Yi

引用次数: 0