European Journal of Operational Research最新文献

An indifference result for social choice rules in large societies 大社会中社会选择规则的冷漠结果

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-12 DOI: 10.1016/j.ejor.2024.09.018

Dezső Bednay, Balázs Fleiner, Attila Tasnádi

引用次数: 0

Condition-based switching, loading, and age-based maintenance policies for standby systems 备用系统基于状态的切换、负载和基于年龄的维护政策

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-10 DOI: 10.1016/j.ejor.2024.09.014

Xian Zhao, Rong Li, He Han, Qingan Qiu

{"title":"Condition-based switching, loading, and age-based maintenance policies for standby systems","authors":"Xian Zhao, Rong Li, He Han, Qingan Qiu","doi":"10.1016/j.ejor.2024.09.014","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.014","url":null,"abstract":"Standby techniques are widely incorporated in structural design to enhance the inherent reliability of systems. To further leverage the system performance during operation, decision-makers can adopt operational policies to manage system degradation. Specifically, at the system level, unit switching that dynamically determines the online unit contributes to avoiding unexpected shutdowns. At the unit level, adjusting load levels to manage the trade-off between condition degradation and revenue accumulation is crucial for maximizing profit. Additionally, adopting age-based maintenance as a tactical decision, which effectively facilitates the integration of maintenance resources, can be implemented to restore a degraded system. For instance, maintenance is typically scheduled at fixed moments for multi-generator power systems located in remote areas. In between maintenance moments, the proactive switching of generators can ensure uninterrupted output, and the adjustment of load levels for online generators helps to maximize output. Motivated by such engineering practices, this paper investigates condition-based switching, loading, and age-based maintenance policies for standby systems to maximize the expected profit rate in the long-run horizon. The problem is formulated as a Markov decision process. The structural properties of the control-limit switching and monotone loading policies are analyzed for easy policy implementation and efficient problem solutions. For comparative purposes, several heuristic policies are proposed and evaluated. Finally, numerical examples are presented to validate theoretical results and illustrate the superiority of the proposed risk control policy.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231658","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

A newsvendor model with multiple reference points: Target-setting for aspirational newsvendors 具有多个参考点的新闻供应商模式：为有抱负的新闻供应商设定目标

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-10 DOI: 10.1016/j.ejor.2024.09.015

Tian Bai, Gengzhong Feng, Meng Wu, Stuart X. Zhu

{"title":"A newsvendor model with multiple reference points: Target-setting for aspirational newsvendors","authors":"Tian Bai, Gengzhong Feng, Meng Wu, Stuart X. Zhu","doi":"10.1016/j.ejor.2024.09.015","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.015","url":null,"abstract":"Prospect theory posits that the determination of an outcome as a gain or loss hinges upon the reference points, thereby exerting a substantial influence on the decision-making processes of individuals. These reference points can encompass both external targets and internal aspirations (self-goals), forming two potential candidates. Despite a growing body of evidence showcasing the concurrent impact of multiple reference points on decision-makers’ choices, scant attention has been accorded to this phenomenon within the realm of operations management literature. In light of this, the present study delves into the influence wielded by an external target, functioning as a reference point, on the decisions and profitability of newsvendors who also harbor a well-defined aspiration (self-goal) reference point. The study introduces two distinct archetypes of newsvendors: the balanced newsvendors, adept at harmonizing personal needs with target attainment and thus navigating decisions influenced by dual reference points; and the focused newsvendors, singularly fixated on target realization and thereby governed by a sole target reference point. Our findings reveal that the effects of target-setting in boosting expected profits on both categories of newsvendors are contingent upon the specific value attributed to their self-goal. The implications of target-setting can either yield advantages or drawbacks, contingent upon the self-goal. This asymmetry in outcomes holds true for both balanced and focused newsvendors, with the former exhibiting a higher likelihood of deriving benefits from target-setting. Moreover, an exploration of scenarios wherein a newsvendor’s self-goal may undergo updates underscores the potential for further enhancement in the performance of balanced newsvendors.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231660","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

Equilibrium analysis of the seller’s fulfillment channels and sales channels 卖方履行渠道和销售渠道的均衡分析

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-07 DOI: 10.1016/j.ejor.2024.09.009

Shu Hu, Ke Fu

{"title":"Equilibrium analysis of the seller’s fulfillment channels and sales channels","authors":"Shu Hu, Ke Fu","doi":"10.1016/j.ejor.2024.09.009","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.009","url":null,"abstract":"Sellers’ products can be sold either through platform channels or through their own channels. Also, sellers’ orders can either be fulfilled by platforms (FBP) or be fulfilled by third-party merchants (FBM). We consider a platform and a representative seller that compete in selling two substitutable products. We develop an analytical framework for identifying each firm’s structure preference by comparing four modes: own channel with FBP (Mode OP), own channel with FBM (Mode OM), platform channel with FBP (Mode PP), and platform channel with FBM (Mode PM). Our research establishes several insights. When the seller’s products are sold through either his own channel or the platform channel with a commission rate, the platform always prefers to provide fulfillment services for the seller – who may be unwilling to accept that service. In contrast, when the seller’s products are sold through the platform channel with a commission rate, the platform has more incentive to “protect” the seller’s profit by offering (resp. not offering) fulfillment services to him when he prefers FBP (resp. FBM). These outcomes indicate that the likelihood of platform and seller agreeing on a fulfillment channel for the seller’s orders is strongly affected by the commission rate and the seller’s sales channel. Besides, even though the platform is always willing to provide sales channels for the seller, a seller’s acceptance of that offer is influenced by his own fulfillment channels. Finally, our analysis reveals that the only possible win–win equilibrium structures for the platform and the seller are Mode PP and Mode PM.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231661","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

Overseas production or domestic production? Impacts of tax disparity and market difference 海外生产还是国内生产？税收差异和市场差异的影响

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-07 DOI: 10.1016/j.ejor.2024.09.012

Baozhuang Niu, Nan Zhang, Zihao Mu

{"title":"Overseas production or domestic production? Impacts of tax disparity and market difference","authors":"Baozhuang Niu, Nan Zhang, Zihao Mu","doi":"10.1016/j.ejor.2024.09.012","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.012","url":null,"abstract":"Overseas and domestic production are two commonly employed strategies for multinational firms (MNFs) to manage their global production operations. Recent tax-cutting initiatives have made domestic production an attractive option for MNFs. We aim to investigate whether such initiatives can effectively induce MNFs to produce domestically, especially when they cater to both domestic and foreign markets. In this study, we develop a game-theoretical model that considers an MNF with two subsidiaries - a production subsidiary and a retail subsidiary - located in different markets, and a third-party seller that resells the MNF's product in the domestic market. We take into account two important differences between the two markets, namely the tax disparity and the market potential difference. Our analysis reveals that a higher foreign market potential can strengthen the MNF's tax-saving incentive under the domestic production strategy. We find that a relatively lower domestic tax rate may not induce the MNF's domestic production even if the foreign market potential is low. On the other hand, when the domestic channel competition is intense, a higher domestic tax rate may still incentivize the MNF to produce domestically. These results depend on the tradeoffs among the tax-saving benefit, the third-party seller's free-riding, and the channel competition. We caution that promoting domestic production through a low tax rate may harm domestic consumer surplus, highlighting the need for policymakers to carefully consider the impact of tax policies on consumers.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231659","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

Retailer’s information sharing and manufacturer’s channel expansion in the live-streaming E-commerce era 直播电商时代的零售商信息共享与制造商渠道拓展

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-06 DOI: 10.1016/j.ejor.2024.09.008

Wei Lu, Xiang Ji, Jie Wu

{"title":"Retailer’s information sharing and manufacturer’s channel expansion in the live-streaming E-commerce era","authors":"Wei Lu, Xiang Ji, Jie Wu","doi":"10.1016/j.ejor.2024.09.008","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.008","url":null,"abstract":"Numerous manufacturers started to embrace live-streaming selling channels in addition to their preexisting retail channels during the outbreak of COVID-19. Our work investigates a retailer’s optimal strategy for sharing demand information with a manufacturer who may collaborate with a streamer to build a live-streaming selling channel. The results indicate that the manufacturer’s live-streaming selling channel expansion via an influencer does not necessarily harm the retailer because the retailer can free ride on the market expansion due to the social influence of the streamer. We also provide a rationale for the widespread voluntary information sharing observed in the era of live-streaming selling. The retailer can discourage or encourage the manufacturer to establish a live-streaming channel by sharing the demand information, which depends on the streamer’s social influence. In addition, potential changes to the information sharing policy result in several unexpected profit implications for the manufacturer, whose profit exhibits a nonmonotonic relationship to the streamer’s social influence and the channel expansion cost. In other words, our results counterintuitively show that the manufacturer may suffer from cooperating with a highly influential streamer in a live-streaming channel but benefit from choosing a less influential one.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231662","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

Addressing the multiplicity of optimal solutions to the Clonal Deconvolution and Evolution Problem 解决克隆解卷积和进化问题的最优解的多重性

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-06 DOI: 10.1016/j.ejor.2024.09.006

Maitena Tellaetxe-Abete, Charles Lawrie, Borja Calvo

{"title":"Addressing the multiplicity of optimal solutions to the Clonal Deconvolution and Evolution Problem","authors":"Maitena Tellaetxe-Abete, Charles Lawrie, Borja Calvo","doi":"10.1016/j.ejor.2024.09.006","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.006","url":null,"abstract":"The Clonal Deconvolution and Evolution Problem consists on unraveling the clonal structure and phylogeny of a tumor using estimated mutation frequency values obtained from multiple biopsies containing mixtures of tumor clones. In this article, we tackle the problem from an optimization perspective and we explore the number of optimal solutions for a given instance. Even in ideal scenarios without noise, we demonstrate that the Clonal Deconvolution and Evolution Problem is highly under-determined, leading to multiple solutions. Through a comprehensive analysis, we examine the factors contributing to the multiplicity of solutions. We find that as the number of samples increases, the number of optimal solutions decreases. Additionally, we explore how this phenomenon operates across various tumor topology scenarios. To address the issue of the existence of multiple solutions, we present sufficient conditions under which the problem can have a unique solution, and we propose a linear programming-based algorithm that leverages mutation orderings to generate instances with a single solution for a given topology. This algorithm encounters numerical challenges when applied to large instance sizes so, to overcome this, we propose a heuristic adaptation that enables the algorithm’s use for instances of any size.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231664","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

A fused large language model for predicting startup success 预测初创企业成功的融合大语言模型

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-06 DOI: 10.1016/j.ejor.2024.09.011

Abdurahman Maarouf, Stefan Feuerriegel, Nicolas Pröllochs

{"title":"A fused large language model for predicting startup success","authors":"Abdurahman Maarouf, Stefan Feuerriegel, Nicolas Pröllochs","doi":"10.1016/j.ejor.2024.09.011","DOIUrl":"https://doi.org/10.1016/j.ejor.2024.09.011","url":null,"abstract":"Investors are continuously seeking profitable investment opportunities in startups and, hence, for effective decision-making, need to predict a startup’s probability of success. Nowadays, investors can use not only various fundamental information about a startup (e.g., the age of the startup, the number of founders, and the business sector) but also textual description of a startup’s innovation and business model, which is widely available through online venture capital (VC) platforms such as Crunchbase. To support the decision-making of investors, we develop a machine learning approach with the aim of locating successful startups on VC platforms. Specifically, we develop, train, and evaluate a tailored, fused large language model to predict startup success. Thereby, we assess to what extent self-descriptions on VC platforms are predictive of startup success. Using 20,172 online profiles from Crunchbase, we find that our fused large language model can predict startup success, with textual self-descriptions being responsible for a significant part of the predictive power. Our work provides a decision support tool for investors to find profitable investment opportunities.","PeriodicalId":55161,"journal":{"name":"European Journal of Operational Research","volume":null,"pages":null},"PeriodicalIF":6.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231668","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

Moderate exponential-time quantum dynamic programming across the subsets for scheduling problems 针对调度问题的跨子集适度指数时间量子动态编程

IF 6.4 2区管理学

European Journal of Operational Research Pub Date : 2024-09-05 DOI: 10.1016/j.ejor.2024.09.005

Camille Grange, Michael Poss, Eric Bourreau, Vincent T’kindt, Olivier Ploton

引用次数: 0

Prelim p. 2; First issue - Editorial Board 预览第 2 页；第一期 - 编辑委员会

IF 6 2区管理学

European Journal of Operational Research Pub Date : 2024-09-04 DOI: 10.1016/S0377-2217(24)00675-1

引用次数: 0