Article
Engineering, Manufacturing
Lezhen Wu, Xiaole Wu, Yu Zhou
Summary: This paper investigates the impact of supply disruption risk on inventory decisions and commitment strategies in a two-period supply chain model. The results show that supply risk affects the retailer's inventory holding motivations, with price commitment suppressing inventory holding motivations and inventory commitment suppressing inventory shifting motivations. Additionally, under high cost and risk, only the manufacturer holds inventory, while the retailer does not hold inventory under price commitment.
PRODUCTION AND OPERATIONS MANAGEMENT
(2023)
Article
Environmental Sciences
Kazi Safowan Shahed, Abdullahil Azeem, Syed Mithun Ali, Md Abdul Moktadir
Summary: This study develops a mathematical model to mitigate disruptions in a three-stage supply chain network subject to natural disasters like COVID-19 pandemic. By providing appropriate inventory policies, manufacturers can maximize profits while considering potential disruptions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Samira Mokhtar, Parisa A. Bahri, Mahdi Shahnazari
Summary: This paper presents a multi-period decision-making framework for procurement managers to develop an optimal supply inventory strategy under uncertain supply conditions. By incorporating financial options valuation techniques, American options valuation method, and Monte Carlo simulation technique, the model remains robust to various stochastic variables influencing inventory management decisions. A case study based on dairy supply chain data demonstrates how decision-makers can appropriately incorporate uncertainties into the decision-making framework.
COMPUTERS & INDUSTRIAL ENGINEERING
(2021)
Article
Computer Science, Theory & Methods
Guodong Ye, Xin Liu, Siqi Fan, Yuan Tan, Qingguo Zhou, Rui Zhou, Xiaokang Zhou
Summary: Supply chain vulnerability exists in third-party components, and ordinary developers unknowingly introduce these vulnerabilities due to the use of third-party components, resulting in their software being affected. Compared with traditional devices, IoT devices have various architectures, and the security issues introduced by code reuse are prominent. This paper proposes PhG-vNet, an effective and efficient SCV detection approach based on heterogeneous-graph-driven hash similarity for IoT devices. PhG-vNet utilizes customized graph embedding and heterogeneous graph neural network to extract graph structure to binary hash embeddings, and detects SCVs based on self-designed bit similarity with Bayesian weighted. Experiments show that PhG-vNet has low overhead, acceptable detection performance, and does not require expensive hardware requirements.
FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE
(2023)
Article
Psychology, Multidisciplinary
Meifeng Zou, Xindong Zhang
Summary: We examine whether firms with a high level of supply chain concentration, defined as reliance on major suppliers or customers, hold more financial assets due to supply chain pressure. Our findings suggest that firms with higher supply chain concentration exhibit higher levels of financialization. While competitive power reduces financialization, it cannot counteract the negative impact of supply chain concentration. Additionally, we investigate the mechanism underlying the relationship between supply chain concentration and corporate financialization using the mediation effect method. The results reveal that supply chain concentration impairs firms' main business profitability, resulting in a higher holding of financial assets. The mediating role of main business profitability channels is significant. Our study highlights the tendency of firms to escape reality and adopt virtual economics when overly dependent on large suppliers/customers.
FRONTIERS IN PSYCHOLOGY
(2023)
Article
Engineering, Industrial
Olatunde A. Durowoju, Hing Kai Chan, Xiaojun Wang, Temidayo Akenroye
Summary: Supply chain reconfiguration decisions have traditionally been driven by operational risk, while simplification and networking strategies have been shown to improve financial performance. However, the impact of information security breaches on these strategies remains unclear. This study found that the effects of security breaches on simplification and risk pooling strategies varied under different order replenishment systems.
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
(2021)
Article
Computer Science, Artificial Intelligence
Kazi Wahadul Hasan, Syed Mithun Ali, Sanjoy Kumar Paul, Golam Kabir
Summary: The benefits of the circular economy are driving industries to form closed-loop supply chains (CLSCs) that minimize cost and environmental impact. However, disruptions in the production process hinder the attainment of these objectives. This study develops a complex mathematical model to minimize total cost, energy consumption, CO2 emissions, and waste generation by considering disruption risks. Three existing heuristics and an updated hyper-heuristic algorithm are employed to compare their efficiency and effectiveness. The results show that CLSCs can mitigate production shortages and reduce costs, energy consumption, CO2 emissions, and waste generation.
APPLIED SOFT COMPUTING
(2023)
Article
Engineering, Industrial
Saurabh Ambulkar, Sridhar Ramaswami, Jennifer Blackhurst, M. Johnny Rungtusanatham
Summary: Product innovation is beneficial and necessary for growth, but it also introduces supply chain disruption risk. This study empirically analyzes the relationship between product innovation activity and supply chain disruption risk, as well as the impact of a firm's central position in the supply network and external knowledge utilization on this risk.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2022)
Article
Computer Science, Information Systems
Deli Wang, Wuwei Li
Summary: The article discusses the risks faced by mobile communication procurement platforms and how to mitigate the impact of supply and demand interruptions. The research findings suggest that overseas retailers adopting a dual-source ordering strategy is effective in reducing the risk of crossborder supply chain disruptions.
WIRELESS COMMUNICATIONS & MOBILE COMPUTING
(2021)
Article
Engineering, Industrial
Hamed Jahani, Babak Abbasi, Zahra Hosseinifard, Masih Fadaki, James P. Minas
Summary: This study finds that the two-stage policy outperforms other capacity allocation policies in the presence of supply disruption. Partial disruption is more manageable compared to full disruption. Additionally, in cases with fixed penalty rates, suppliers are better off negotiating longer performance review periods.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2021)
Article
Engineering, Industrial
Xi Shan, Siqin Xiong, Chenglin Zhang
Summary: Supply chain disruption risk is a critical issue in supply chain management. This study examines the strategic behavior of a retailer and suppliers in response to disruption risk. The results show that the relationship between a supplier's reliability and order quantity is non-linear, and higher reliability does not always benefit the supplier. Additionally, contrary to conventional wisdom, suppliers do not always prefer negatively correlated disruptions when considering the costly sales effort of a retailer.
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
(2023)
Article
Engineering, Chemical
Kai Huang, Jian Wang, Jinxin Zhang
Summary: The automobile industry is crucial for the national economy, and a well-functioning automobile supply chain is essential for sustainable economic and social development. However, there is a lack of comprehensive bibliometric review in the field of automotive supply chain disruption risk management. This paper fills this gap by conducting a comprehensive bibliometric analysis of 866 journal articles from 2000 to 2022, providing insights into research topics, trends, key features, and future directions in automotive supply chain disruption risk management.
Article
Engineering, Multidisciplinary
Yang Song, Yan-Qiu Liu, Qi Sun, Ming-Fei Chen, Hai-Tao Xu
Summary: This paper introduces a bi-objective integer nonlinear programming model with subjective cost-utility to address the manufacturer's combined location routing inventory problem. By designing a routing change selection framework based on bounded rational behavior of users, a compromise solution is proposed that effectively reduces total operating costs for the manufacturer while enhancing user satisfaction.
MATHEMATICAL PROBLEMS IN ENGINEERING
(2021)
Article
Business
Ying Kei Tse, Minhao Zhang, Wenjuan Zeng, Jie Ma
Summary: This study examines the relationship between uncertainty factors and supply chain quality risk (SCQR), as well as the moderating role of supply market thinness (SMT). Findings indicate that uncertainty factors are associated with managers' perceptions of SCQR, and that SMT moderates the impacts of certain uncertainties on both the probability and magnitude of SCQR. The validated model offers insights for practitioners to effectively manage SCQR by understanding its nature.
JOURNAL OF BUSINESS RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Junheng Cheng, Weiyi Hong, Jingya Cheng
Summary: Under stringent environmental regulations, inadequate green input from manufacturers may lead to substandard emissions and production shutdown, posing a disruption risk to the supply chain. This study investigates a green supply chain with an environmentally regulated manufacturer and a capital-constrained retailer. The manufacturer needs to decide on the green input level, considering investment cost and supply disruption risk, while the retailer determines product order quantities and financing decisions. The results show the importance of improving green input levels within financial capability for sustainable supply chain operations, and highlight the profitability of financing options for the capital-constrained retailer.
Article
Green & Sustainable Science & Technology
Chenling Fu, Brian D. D. Fath, Ichiro Daigo, Yan Zhang, Tianjie Deng
Summary: This study provides a comprehensive picture of the flows and stocks of materials and products in Beijing. From 2000 to 2018, the total system throughflow in Beijing increased and then decreased. The main sectors of resource consumption and waste discharge in Beijing shifted from Fabrication and Manufacturing to Construction. Recycling in Beijing increased but needs to be further improved to meet the growing waste generation.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Shaoqi Shi, Beijia Huang, Fumin Ren, Lian Duan, Jinming Lei, Yuyue Wang, Xiangjin Wang, Qianwen Wu, Weidong Li, Yile Xiong, Nan Li, Jiayi Hu, Jun Nakatani
Summary: With the rapid development of the construction industry in China, the consumption of building materials has caused huge pressure on resources and the environment. This study used localized construction material data and the LIME-3 method to evaluate the environmental impact of different building materials on human health. The results showed that ceramic tiles and steel had the highest impact on human health, while gravel and natural sand had relatively low impact. Comparison of the results from different assessment methods revealed that the burden of human health impact for ceramic tiles under LIME-3 was 67 times that under ReCiPe.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Moeko Kawai, Jun Nakatani, Kiyo Kurisu, Yuichi Moriguchi
Summary: The recycling of plastic packaging waste in Japan faces challenges such as high residue rate and low quality of recycled resins. To improve the quantity and quality of recycled plastics, it is essential to explore appropriate source separation targets and sorting processes based on plastic type. The acceptability of recovered plastics as raw materials also needs to be assessed by considering the demand and quality requirements of resin users. This study evaluated different combinations of source separation and sorting processes, and developed recycling scenarios to optimize the quantity and quality of recovered plastics. The findings suggest that achieving the recycling target set by the Japanese government is possible if resin users are willing to accept recycled resin, and maintaining the current material recycling rate would require an increase in the collection rate and acceptable quantities of high-quality recovered plastics.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Engineering, Environmental
Ryosuke Yokoi, Jun Nakatani, Hiroki Hatayama, Yuichi Moriguchi
Summary: This study comprehensively analyzes the historical trends of in-use stocks and waste flows of copper in Japan until 2015. The results show that copper stocks in manufacturing, infrastructure-related sectors, and household have already peaked and decreased, while those in real estate and residence continued to increase. The household sector is a significant source of copper recycling.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Multidisciplinary Sciences
Momo Takada, Kosuke Shirai, Michio Murakami, Susumu Ohnuma, Jun Nakatani, Kazuo Yamada, Masahiro Osako, Tetsuo Yasutaka
Summary: This study used a web-based questionnaire to examine the relative importance of various factors in the choice of final disposal sites for decontaminated materials after the Fukushima nuclear accident. The results showed that the public values the distance between disposal sites and residential areas, as well as procedural and distributive fairness, over the volume and radioactivity of the materials.
Article
Clinical Neurology
Tomohiko Ihara, Daisuke Narumi, Sanae Fukuda, Hiroaki Kondo, Yutaka Genchi
Summary: This study aimed to quantify the sleep disturbances caused by climate change using DALY as the evaluation index. A self-administered questionnaire, SQIDS2, was developed to assess daily sleep disturbances, referencing the simplified version of PSQI. The study found that the prevalence of sleep disturbances was correlated with the daily minimum temperature, and higher temperature led to increased sleep disturbances. The study also estimated the DALY loss caused by heat-related sleep disturbances.
SLEEP AND BIOLOGICAL RHYTHMS
(2023)
Article
Thermodynamics
Tatsuya Okubo, Teruyuki Shimizu, Kei Hasegawa, Yasunori Kikuchi, Sergei Manzhos, Manabu Ihara
Summary: This study analyzes the impact of increasing system capacities on system costs and greenhouse gas emissions under different photovoltaic capacities and self-sufficiency rates using a model. The results show that optimizing the system design can reduce costs and emissions, as well as alleviate surplus electricity constraints, especially with massive photovoltaic implementation. Additionally, the study discusses the maximum installable photovoltaic capacity in a microgrid in terms of electricity demand density and grid transmission capacity.
Article
Thermodynamics
Ayumi Yamaki, Shoma Fujii, Yuichiro Kanematsu, Yasunori Kikuchi
Summary: To accelerate renewable energy implementation, we evaluated the potentials of paper mills installing wind energy as energy hubs. By analyzing the energy flows and emissions, we found that most paper mills could reduce greenhouse gas using thermal energy storage, wind energy, and woody biomass. The design of the equipment installed in paper mills should be based on the specific conditions and regions.
Article
Engineering, Environmental
Ryosuke Yokoi, Jun Nakatani, Hiroki Hatayama, Yuichi Moriguchi
Summary: A comprehensive characterization of in-use metal stocks is necessary for assessing their recyclability. In this study, we used the indicators of spatial density and in-product density to characterize in-use copper stocks in Japan. The different types of products required different efforts in collection and preprocessing stages.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Engineering, Environmental
Kiyo Kurisu, Katsuya Tsuji, Jun Nakatani, Yuichi Moriguchi
Summary: This study categorizes 60 Japanese cities into clusters and uses seven representative cities to simulate the CO2 emissions associated with car sharing. The results show that the cities with lower car dependency experience a significant increase in CO2 emissions when car sharing is introduced, indicating that the transition from public transportation to car sharing plays a major role in CO2 increases.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Green & Sustainable Science & Technology
Kotaro Ouchida, Yuichiro Kanematsu, Yasuhiro Fukushima, Satoshi Ohara, Akira Sugimoto, Taiichiro Hattori, Yoshifumi Terajima, Tatsuya Okubo, Yasunori Kikuchi
Summary: The coordinated integration of agricultural and industrial processes in plant-derived production can offer sustainable solutions, but practitioners need a clear understanding of the required activities. A function model for the coordinated integration was developed and analyzed through modeling and verified in the Japanese cane sugar industry. The applicability and limitation of the function model in the palm oil industry were also discussed.
PROCESS INTEGRATION AND OPTIMIZATION FOR SUSTAINABILITY
(2023)
Correction
Engineering, Environmental
Eri Amasawa, Tomoki Yamanishi, Jun Nakatani, Masahiko Hirao, Shunsuke Sato
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Takuro Uehara, Jun Nakatani, Takahiro Tsuge, Misuzu Asari
Summary: Consumer acceptance is crucial for the transition to a bioeconomy, but studies on consumer preferences and perceptions of bioplastics are lacking. This study examined 12,000 Japanese consumers using a treatment-control design, revealing the complexity of their preferences and limited comprehension of bioplastics. The study also found differences and similarities with European consumers, providing insights for Japanese industries and governments to develop and promote acceptable types of bioplastics.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Hiroaki Kuroda, Eri Amasawa, Jun Nakatani, Masahiko Hirao
Summary: This study examines the application of bio-based plastics in mitigating climate change and finds that introducing bio-based plastics can reduce greenhouse gas emissions when coupled with appropriate end-of-life options.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Green & Sustainable Science & Technology
Dheanara Pinka, Kazuyo Matsubae
Summary: In this study, a life-cycle assessment was conducted to evaluate the environmental impacts of pearl farming in Ago Bay, Mie Prefecture, Japan. The results showed that pearl production had lower greenhouse gas emissions compared to metals commonly used in jewelry production. Efforts are also being made to improve waste handling and reduce plastic waste, providing critical insights for achieving sustainable pearl farming.
Article
Management
Hengyu Liu, Kai Zheng
Summary: Since August 2018, African swine fever (ASF) has caused over one million pig deaths in China and led to a surge in pork prices. To address this issue, the Chinese government has implemented two farm subsidies: the compulsory culling subsidy (CCS) and the large-scale breeding subsidy (LBS). Through a game-theoretic model, the study explores the optimal design of these subsidy programs and their impacts on different stakeholders.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Reza Azad Gholami, Leif Kristoffer Sandal, Jan Uboe
Summary: This paper investigates a decentralized supply channel where a manufacturer and a retailer compete in a multi-period discrete time setting, addressing uncertain demand through dynamic channel optimization. The paper proposes solution algorithms and theorems that highlight the benefits of postponement strategies for the follower and potential harm for the manufacturer in a decentralized channel.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Anne G. Balter, Ki Wai Chau, Nikolaus Schweizer
Summary: This study examines whether the threshold parameter in the Omega ratio represents risk aversion by analyzing the asymptotic expansions for risk premia. The results suggest that the threshold in the Omega ratio represents risk aversion when the variance of the additional risk decreases with the background risk and when the density of the background risk is log-concave. Comparisons with expected utility criteria indicate that the conditions for the Omega threshold to represent risk aversion are comparable to those for exponential utility functions.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Baozhuang Niu, Fengfeng Xie, Lei Chen
Summary: This paper examines the strategic sourcing decisions of a local brand (BOP) when purchasing remanufactured components from a local supplier (LSP). The study finds that the BOP tends to decrease its purchasing orders from the LSP when the probability of overseas supply disruption is high, while the LSP is willing to sell components to the BOP when the probability is in a moderate range.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Chiang Kao
Summary: This study develops a model to calculate the maximum SBM efficiency for general network production systems, and applies it to a garment manufacturing company. The results show that the sewing operation contributes more to the system efficiency than the cutting operation does.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Baozhuang Niu, Jiayun Liu, Jianhua Zhang, Kanglin Chen
Summary: This study examines a brand's decision on reselling through a platform by using game-theoretical analysis and big data validation based on transaction-level data from JD.com. The study finds that the platform's channel advantage and high logistics service level encourage brands to choose the reselling mode, and the impact of the platform's private label competition is non-monotonic.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Ali Fereydooni, Sasan Barak, Seyed Mehrzad Asaad Sajadi
Summary: This study develops an online portfolio selection strategy that considers Environmental, Social, and Governance factors in addition to return and risk. The results indicate the superiority of the approach that considers Environmental, Social, and Governance factors in terms of profit, volatility, and the highest deflated Sharpe ratio.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Sally Giuseppe Arcidiacono, Salvatore Corrente, Salvatore Greco
Summary: This paper introduces a method to handle multiple compatible value functions in multi-criteria decision making by building a probability distribution. Stochastic multicriteria acceptability analysis provides statistical information based on the decision maker's preferences. Extensive simulations and sensitivity analysis have been conducted to demonstrate the superiority of the proposed method.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Junlin Chen, Zewu Jiang, Xiaobo Zhao, Wanshan Zhu, Jinxing Xie
Summary: In this study, we investigate a supply chain system consisting of a retailer and a supplier. We examine the threshold problem in contract design and take into account the risk preference of the retailer and the fairness concern of the supplier. The experiment shows that the behavior of the retailer affects the threshold of the optimal contract design, while the behavior of the supplier only affects the optimal wholesale price. These findings suggest that the behavior of retailers and suppliers play a crucial role in the mechanism design of supply chains.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Shuxia Peng, Bo Li, Wei Zheng
Summary: This study examines the impact of consumers' valuation updating on optimal pricing decisions and market structure in a competitive software market. The results show that with consumers' valuation updating, the incumbent can maximize profits through market segmentation, dominance, or entry deterrence strategies, and is willing to share the market with the entrant, achieving a win-win situation.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Victor Gimenez, Diego Prior, Claudio Thieme, Emili Tortosa-Ausina
Summary: This study proposes a nonparametric activity analysis methodology to assess the effectiveness of pandemic management in 61 countries nine months into the COVID-19 pandemic. The results show that effectiveness is strongly influenced by socioeconomic and cultural factors and reveal three main groups of countries based on their management level. This highlights the importance of operations research methods in accurately assessing pandemic management.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Narges Sereshti, Yossiri Adulyasak, Raf Jans
Summary: This paper investigates the stochastic multi-level lot sizing problem with a service level and explores the value of adding flexibility in such context. By modeling the problem as a two-stage stochastic program with uncertain demand and considering different demand scenarios, the study shows that adding flexibility to the system can result in cost savings, even with a small degree of flexibility.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Jafar Chaab, Georges Zaccour
Summary: This paper examines the pricing of a new product in the presence of sophisticated consumer behaviors. The study finds that forward-looking consumer behavior can either strengthen or weaken the effectiveness of a penetration pricing strategy, while the superiority of committed pricing in terms of firm's profit heavily depends on consumer behaviors.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Amelia Bilbao-Terol, Celia Bilbao-Terol
Summary: This paper presents a methodology that combines the hedonic pricing method and the Choquet integral for modelling the hotel selection process. This hybrid technique takes into account both market valuation and the importance of criteria, and holds potential benefits.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)
Article
Management
Hui Li, Dongdong Wu
Summary: This study aims to investigate the impact of scale effects from restructuring on performance in tourism firms, and examine the influence of investor attention on restructuring performance. The findings reveal that restructuring activities can enhance scale effects, but the benefits decrease over time, and investor attention online also plays a role in determining restructuring performance.
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2024)