International Transactions in Operational Research最新文献_第7页

A novel dual-decomposition method for non-convex two-stage stochastic mixed-integer quadratically constrained quadratic problems 非凸两阶段随机混合整数二次约束问题的一种新的双重分解方法

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-02-12 DOI: 10.1111/itor.70001

Nikita Belyak, Fabricio Oliveira

{"title":"A novel dual-decomposition method for non-convex two-stage stochastic mixed-integer quadratically constrained quadratic problems","authors":"Nikita Belyak, Fabricio Oliveira","doi":"10.1111/itor.70001","DOIUrl":"10.1111/itor.70001","url":null,"abstract":"We propose the novel p-branch-and-bound method for solving two-stage stochastic programming problems whose deterministic equivalents are represented by non-convex mixed-integer quadratically constrained quadratic programming (MIQCQP) models. The precision of the solution generated by the p-branch-and-bound method can be arbitrarily adjusted by altering the value of the precision factor p. The proposed method combines two key techniques. The first one, named p-Lagrangian decomposition, generates a mixed-integer relaxation of a dual problem with a separable structure for a primal non-convex MIQCQP problem. The second one is a version of the classical dual decomposition approach that is applied to solve the Lagrangian dual problem and ensures that integrality and non-anticipativity conditions are met once the optimal solution is obtained. This paper also presents a comparative analysis of the p-branch-and-bound method efficiency considering two alternative solution methods for the dual problems as a subroutine. These are the proximal bundle method and Frank–Wolfe progressive hedging. The latter algorithm relies on the interpolation of linearisation steps similar to those taken in the Frank–Wolfe method as an inner loop in the classic progressive hedging. The p-branch-and-bound method's efficiency was tested on randomly generated instances and demonstrated superior performance over commercial solver Gurobi.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"3128-3157"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/itor.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The influences of Nash bargaining fairness concerns on financing strategies and operational decisions of an EVSC 纳什议价公平问题对创业企业融资策略和经营决策的影响

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-12-17 DOI: 10.1111/itor.70141

Xinjie Fan, Peng Ma

{"title":"The influences of Nash bargaining fairness concerns on financing strategies and operational decisions of an EVSC","authors":"Xinjie Fan, Peng Ma","doi":"10.1111/itor.70141","DOIUrl":"10.1111/itor.70141","url":null,"abstract":"This paper establishes an electric vehicle supply chain (EVSC), which consists of a capital-constrained electric vehicle (EV) retailer and a dominant EV manufacturer. Two types of financing, that is, manufacturer credit financing (MF) and bank credit financing, are available for the EV retailer. By incorporating fairness concerns, we characterize how they affect the EVSC members’ financing strategies and operational decisions. Additionally, we develop the extension model and further capture the impacts of Nash bargaining fairness concerns. The analytical results reveal that the MF strategy is more profitable in most cases. And its adoption region under Nash bargaining fairness concerns is a bit larger than that under fairness concerns. We also find that fairness concerns lead to lower wholesale prices and EV green levels. Counterintuitively, the EV retailer also reduces retail prices in response. Under Nash bargaining fairness concerns, the EV manufacturer makes less sacrifice and invests more in green innovation of EV, and the EV retailer sets higher retail prices. It indicates that different fairness benchmarks change members’ decisions. The results we derive give useful guidelines and insights for EVSC members’ financing strategies and operational decisions.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"3309-3335"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Integrated routing of heavy electrical and diesel trucks in forest transports 重型电力和柴油卡车在森林运输中的综合路线

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1111/itor.70144

Mikael Rönnqvist, Patrik Flisberg, Anna Pernestål, Lovisa Engberg Sundström, Oskar Gustavsson

{"title":"Integrated routing of heavy electrical and diesel trucks in forest transports","authors":"Mikael Rönnqvist, Patrik Flisberg, Anna Pernestål, Lovisa Engberg Sundström, Oskar Gustavsson","doi":"10.1111/itor.70144","DOIUrl":"10.1111/itor.70144","url":null,"abstract":"Fossil-free forestry transports are important to reach climate goals. In Sweden, road transports account for around 50% of the industry's CO2 emissions and almost 20% of the road freight volumes. Previous studies have shown that electrification is a cost-effective way for carbon abatement, while at the same time the requirements for flexibility in routing make electrification of forestry transport challenging. The current trend is to introduce more electrical vehicles in different sectors. However, there are challenges for the forest industry, including long distances, heavy weights, multiple shifts, and a lack of recharging stations. We propose an analytical decision tool that solves an integrated vehicle routing problem. This model includes detailed energy consumption and recharging requirements for each route generated. The solution method consists of phases where we first identify full truckloads and then generate a set of generic routes. These are later used to construct routes for individual trucks. The coordination to find the best route for each truck is found by solving a mixed integer programming model. We use a case study to analyze the impact of an increasing proportion of electrical trucks.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"3088-3109"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/itor.70144","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Profitability of private brands of e-commerce platforms offering competing national brands under agency selling 代理销售下，提供竞争民族品牌的电商平台自有品牌的盈利能力

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-11-18 DOI: 10.1111/itor.70129

Salma Karray, Simon P. Sigué

引用次数: 0

Circular economy business strategies and public schemes: a game theory-based survey 基于博弈论的循环经济商业策略与公共方案研究

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-04-13 DOI: 10.1111/itor.70031

Vinay Ramani, Pietro De Giovanni

{"title":"Circular economy business strategies and public schemes: a game theory-based survey","authors":"Vinay Ramani, Pietro De Giovanni","doi":"10.1111/itor.70031","DOIUrl":"10.1111/itor.70031","url":null,"abstract":"This paper develops a selected survey based on game theory in circular economy (CE) by complementing two perspectives: the CE business strategies and the public schemes (PS) available to implement CE systems. These perspectives are concentrated in six CE business strategies (circular inputs, sharing platforms, product-as-a-service (PaaS), product life extension, product use extension, and resource recovery) and 20 different public incentives. We focus on the game theory literature since firms struggle to select the best CE strategies to adopt considering the public mechanisms in place while the governments fixes the PS to sponsor the implementation of CE systems according to the firms’ capacity to adopt CE strategies. Our results highlight that previous research has most likely focused on resource recovery business strategy, investigating predominantly four schemes: material taxation, environmental producer responsibility on contract duration and conditions, tradable recycling credit schemes, and subsidy. While few game theory papers investigate the product life extension and product use extension strategies, other CE strategies linked to circular inputs, sharing platforms, and PaaS turn out to be fully unexplored, independent of the PS used. Finally, we identify several research gaps that can help future research in game theory to contribute in the crossing domain of CE strategies and PS to implement CE systems.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"2827-2869"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/itor.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Interaction and optimal decisions of sourcing strategy and selling mode in online platforms 网络平台采购策略与销售模式的互动与优化决策

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-05-05 DOI: 10.1111/itor.70046

Huiming Cui, Bin Zheng, Sijie Li, Jingjing Xue

{"title":"Interaction and optimal decisions of sourcing strategy and selling mode in online platforms","authors":"Huiming Cui, Bin Zheng, Sijie Li, Jingjing Xue","doi":"10.1111/itor.70046","DOIUrl":"10.1111/itor.70046","url":null,"abstract":"In recent years, online platforms such as Amazon and JD.com have increasingly introduced private labels (PL) to enhance their competitive edge, leading to conflicts with national brands (NB). A critical decision for these platforms lies in sourcing of PL products: either from third-party manufacturers (strategy T) or NB manufacturers (strategy M). In turn, NB manufacturers must strategically determine their selling modes on platforms, opting for either reselling or agency mode, in response to the platform's PL sourcing strategy. This study explores the intricate interactions between platform's PL sourcing strategies and NB manufacturer's selling mode choices, revealing several significant insights. When commission rates are low (high), NB manufacturers prefer the agency (reselling) mode. Interestingly, their preferences for selling modes differ under varying sourcing strategies. Specifically, under strategy T, NB manufacturers favor the agency mode when commission rates are moderate and the market size of PL products is large, while under strategy M the reselling mode becomes more advantageous. Furthermore, heightened competition increases the appeal of the agency mode under strategy T and the reselling mode under strategy M for NB manufacturers. From the platform's perspective, strategy M is preferred when brand spillover effects are significant and the market size of PL products is relatively small. However, under high competition intensity, the platform tends to favor strategy T with reselling mode and strategy M with agency mode. Notably, as competition intensifies, the sales quantity of PL products consistently decreases, while the sales quantity of NB products shows potential for increase.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"2921-2949"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Exact resolution of a simultaneous vehicle routing and crew scheduling problem in long-haul transport 长途运输中车辆路线和人员调度同步问题的精确解决

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-03-10 DOI: 10.1111/itor.70014

Mauro Lucci, Daniel Severín, Paula Zabala

引用次数: 0

Quality disclosure in agricultural supply chains: farmer versus platform disclosure 农业供应链中的质量信息披露：农民与平台信息披露

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-03-24 DOI: 10.1111/itor.70008

Yong Tan, Ziwei Zhou, Xu Guan, Yuan Jiang

{"title":"Quality disclosure in agricultural supply chains: farmer versus platform disclosure","authors":"Yong Tan, Ziwei Zhou, Xu Guan, Yuan Jiang","doi":"10.1111/itor.70008","DOIUrl":"10.1111/itor.70008","url":null,"abstract":"This paper investigates the firms' equilibrium disclosure strategies in an agricultural supply chain, wherein the farmer sells agricultural products through an intermediary platform to the end market. Both the farmer and the platform privately observe the product quality information and independently determine whether to disclose this information to the consumers. We examine two disclosure formats, farmer disclosure format and platform disclosure format, depending on who is responsible for quality disclosure. Our analysis reveals that the commission rate exerts a nontrivial impact on the farmer's and platform's disclosure incentive and their profits. The farmer has the incentive to disclose the quality information only when the commission rate is low, while the platform chooses to disclose the quality information only when the commission rate is high. Additionally, under farmer (platform) disclosure format, the platform's (farmer's) profit exhibits nonmonotonic pattern with respect to the commission rate when the disclosure cost is low. Moreover, we show that both the farmer and the platform may opt to take the disclosure responsibility by itself, and in certain conditions, their preferences for two disclosure formats could be aligned, resulting in a “win-win” situation for both parties.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"2870-2892"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Driver-centric urban logistics optimization: vehicle routing with heterogeneous fixed drivers 以驾驶员为中心的城市物流优化：异构固定驾驶员下的车辆路径

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-02-20 DOI: 10.1111/itor.13619

Ming Deng, Yi Ding

{"title":"Driver-centric urban logistics optimization: vehicle routing with heterogeneous fixed drivers","authors":"Ming Deng, Yi Ding","doi":"10.1111/itor.13619","DOIUrl":"10.1111/itor.13619","url":null,"abstract":"In the era of flourishing online shopping, efficient delivery operations are essential for companies to enhance customer satisfaction and stay competitive. Previous studies often overlooked the attributes of delivery drivers, particularly their regional knowledge, which significantly impacts the optimization of last-mile delivery operations. This paper introduces the vehicle routing problem with heterogeneous fixed drivers (VRP-HFD), a novel extension of traditional vehicle routing models. It incorporates the unique attributes of drivers, including their regional knowledge and driving qualifications. We propose a mathematical model that captures the relationships among drivers, vehicles, and customers, aiming to minimize both the number of unserved customers and total operational costs. To address the increased complexity in the VRP-HFD model, we develop a hybrid adaptive genetic algorithm (HAGA) that integrates multichromosome coding, adaptive genetic operators, and local search techniques to enhance solution quality. Computational experiments using real-world instances demonstrate the effectiveness of HAGA in generating high-quality solutions compared to the baseline algorithms. Our findings underscore the critical role of driver attributes in optimizing last-mile delivery operations, offering valuable insights for logistics companies committed to improving service efficiency and customer satisfaction.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"3258-3281"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Service strategy of a sharing platform in a supply chain under information asymmetry 信息不对称下供应链共享平台的服务策略

IF 2.9 4区管理学

International Transactions in Operational Research Pub Date : 2026-04-01 Epub Date: 2025-12-14 DOI: 10.1111/itor.70136

Zi-Han Gong, Jian-Cai Wang, Yao-Yu Wang, Dan-Yang Xu

{"title":"Service strategy of a sharing platform in a supply chain under information asymmetry","authors":"Zi-Han Gong, Jian-Cai Wang, Yao-Yu Wang, Dan-Yang Xu","doi":"10.1111/itor.70136","DOIUrl":"10.1111/itor.70136","url":null,"abstract":"Sharing platforms can operate in a B2C (business-to-customer) mode, a C2C (customer-to-customer) mode, or a hybrid. The choice of sharing mode not only influences downstream customers but also has consequences for upstream product manufacturers. Additionally, the sharing platform's ability to gather user and provider data creates information advantages over manufacturers. Motivated by this, we consider a supply chain where a manufacturer can sell products to a sharing platform, where the latter holds private information about the proportion of renters. A type-dependent screening model is developed to study the sharing platform's service strategy and the manufacturer's contract design. Our findings indicate that, under information symmetry, when the cannibalization effect from B2C intensifies (i.e., the renter proportion and service fee are high), expanding the customer base or raising the service fee can harm the sharing platform. However, when this effect is weak, adopting a hybrid mode allows the sharing platform to benefit from broader market coverage and a higher fee. Under information asymmetry, the sharing platform is classified as either H-type or L-type based on its private information. When the level of information uncertainty is high, the manufacturer may shut down the inefficient L-type sharing platform. Alternatively, if the manufacturer does not shut down the L-type sharing platform, when the service fee is low, both types adopt the hybrid mode, and the manufacturer suffers as the sharing platform receives more commission income from the C2C mode. Interestingly, the sharing platform's profit may be non-monotonic in the level of information uncertainty.","PeriodicalId":49176,"journal":{"name":"International Transactions in Operational Research","volume":"33 5","pages":"2977-3012"},"PeriodicalIF":2.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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