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디지털 트랜스포메이션(DX)을 통한 공급망 리스크 감소 전략: 말레이시아 해양 수산 유통경로 개선전략 중심으로 通过数字转换(DX)减少供应链风险战略:以改善马来西亚海洋水产流通渠道战略为中心
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.55
Nur Ruhaiqa Binti Zulkifli, Nor Aina Fatini Binti Zakaria, Gye-Soo Kim
When COVID-19 emerged, it affected numerous industries included fisheries supply chain in Malaysia, including Malaysia's fisheries supply chain. It was declared a pandemic in Malaysia and the government implemented the Movement Control Order (MCO), which prohibited all types of travel and Malaysia’s artisanal fishers are suffering net losses. Marine fisheries supply chain in Malaysia, The marine fisheries supply chain in Malaysia, challenges that they face are not as severe as those faced by other countries. Most fishing areas are either in rural areas and the only things that have improved are after COVID-19, when they implemented technologies. To implement such changes, the behaviour of Malaysian society and fishermen needs to be considered where the acceptance behavioural should be observesobserved. This research implemented DXAM (Digital Transformation Acceptance Model) by distributed questionnaire to 100 respondents and analysed the result using SmartPLS4. Results show that the most of the hypotheses research models were accepted and exemplifies exemplify the significance of path analysis. It shows the behaviour toward these changes is accepted where research and in-depth study are required. This study aims an improvement on Malaysia's distribution path on marine fisheries according to supply chain risk through DX. With the use of DX, it helps to produce and provide an impact that helps to improves.
当新冠肺炎疫情出现时,它影响了包括马来西亚渔业供应链在内的众多行业,包括马来西亚的渔业供应链。马来西亚宣布疫情为大流行,政府实施了行动控制令(MCO),禁止所有类型的旅行,马来西亚的手工渔民正在遭受净损失。马来西亚的海洋渔业供应链马来西亚的海洋渔业供应链面临的挑战并不像其他国家那样严峻。大多数渔区要么在农村地区,唯一有所改善的是在2019冠状病毒病之后,他们实施了技术。为了实施这些改变,需要考虑马来西亚社会和渔民的行为,在哪里应该观察到接受行为。本研究通过向100名受访者分发问卷来实施DXAM(数字化转型接受模型),并使用SmartPLS4分析结果。结果表明,大多数假设研究模型被接受,并举例说明了通径分析的意义。它表明,在需要进行深入研究的地方,对这些变化的行为是可以接受的。本研究旨在通过DX改善马来西亚根据供应链风险的海洋渔业配送路径。通过使用DX,它有助于产生并提供有助于改进的影响。
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引用次数: 0
Effect of Supply Chain Risk on National Logistics Performance: Using the Logistics Performance Index of the Member Countries of the OECD 供应链风险对国家物流绩效的影响:基于OECD成员国物流绩效指标的分析
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.97
S. Hong, Changhee Kim
This study analyzed changes in logistics efficiency in OECD member countries and examined how much logistics performance is affected by supply chain risks in each country. This study was analyzed using the Logistics Performance Index distributed by the World Bank. Malmquist productivity analysis was performed using “Logistics quality and competence” and “Infrastructure” as input factors and “overall LPI score” as an output factor. As a result, it was confirmed that the trend of productivity changes in OECD countries was very similar to that of the technology change index. And it was confirmed that countries in Asia, Europe, Oceania, and South America had similar trends in productivity changes, but countries in North America had similar trends in efficiency changes. In addition, we analyzed how risk factors were affected by productivity changes by performing Tobit regression analysis, As a result, international shipments factor had a negative effect and timeliness factor had a positive effect.
本研究分析了经合组织成员国物流效率的变化,并考察了每个国家供应链风险对物流绩效的影响程度。本研究采用世界银行分发的物流绩效指数进行分析。Malmquist生产率分析使用“物流质量和能力”和“基础设施”作为输入因素,“总体LPI得分”作为输出因素。结果证实,经合发组织国家的生产率变化趋势与技术变化指数的趋势非常相似。研究证实,亚洲、欧洲、大洋洲和南美洲的国家在生产率变化方面有类似的趋势,但北美国家在效率变化方面也有类似的趋势。此外,我们通过Tobit回归分析了风险因素如何受到生产率变化的影响,结果表明国际运输因素具有负向影响,而时效性因素具有正向影响。
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引用次数: 0
Risks in Parts Supply Chain and Their Impact on Supply Chains and Shipping Sector: Focusing on Automobile Industry 零部件供应链风险及其对供应链和航运业的影响——以汽车行业为例
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.111
Byeong-Il Choi, Han-Byul Ryu, Sun-Kyu Kim
Of late, various risk factors, such as the closure of container ports due to the COVID-19 pandemic, decline in container fleets, and instability in final demand, have had a detrimental impact on the business environment. Such negative effects could prevent companies from achieving their goals. Therefore, it is necessary to identify the risk and implement appropriate risk management strategies based on the impact factors of the risk. This study analyzed the impact of supply chain risks on the domestic automobile production network and maritime car carrier market. We quantified supply chain risks that arise in domestic automobile production processes and employed the vector auto regression models to analyze the effects of these risks on the automobile supply chain and pure car carrier market. In addition, using impact reaction function, we analyzed the process through which the risk in the supply chain extends to automobile production and pure car carrier market. It is expected that this study will help set long-term and short-term targets for production plans and demarcate corporate strategies through effective response to market conditions.
近期,新冠肺炎疫情导致集装箱港口关闭、集装箱船队数量减少、最终需求不稳定等多种风险因素对营商环境产生不利影响。这种负面影响可能会阻碍公司实现其目标。因此,有必要识别风险,并根据风险的影响因素实施适当的风险管理策略。本文分析了供应链风险对国内汽车生产网络和海运汽车运输船市场的影响。我们量化了国内汽车生产过程中出现的供应链风险,并运用向量汽车回归模型分析了这些风险对汽车供应链和纯汽车载体市场的影响。此外,利用冲击反应函数分析了供应链风险向汽车生产和纯汽车载体市场延伸的过程。通过对市场条件的有效反应,本研究将有助于制定生产计划的长期和短期目标,并界定企业战略。
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引用次数: 0
Port Risk Evaluation: Port of Incheon 港口风险评价:仁川港
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.39
Yoon Seok Jeon, Nyamjav Tsendkhuu, M. Ha
The port risk evaluation applied in this study is a hybrid approach of Fuzzy Evidential Reasoning and Utility Techniques. The Analytic Hierarchy Process was incorporated to evaluate each risk factor’s importance and to yield the weighted risk level of the individual risk factor and the overall risk level. The interpretation of the results of the hybrid approach is straightforward. This feature enables port risk managers to identify the strengths and weaknesses of the ports regarding each risk factor, upper-level risk factors, and overall risk. This offers the necessary insight to determine which areas require special attention for risk mitigation. Consequently, the results obtained by the risk evaluation model are expected to be used by port risk managers as diagnostic instruments to mitigate port risk or to improve risk management practices.
本研究应用的港口风险评估方法是模糊证据推理和效用技术的混合方法。采用层次分析法对各风险因素的重要性进行评价,得出单个风险因素和总体风险因素的加权风险水平。对混合方法结果的解释是直截了当的。该特性使港口风险管理人员能够根据每个风险因素、上层风险因素和总体风险识别港口的优势和劣势。这为确定哪些领域需要特别关注以减轻风险提供了必要的见解。因此,风险评估模型获得的结果有望被港口风险管理者用作诊断工具,以减轻港口风险或改善风险管理实践。
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引用次数: 0
Scheduling Algorithm for Reentrant Flexible Flow Shop with the Objective Function of Minimizing Orders’ Total Flow Time 以订单总流时间最小为目标函数的可重入柔性流水车间调度算法
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.129
S. W. Choi
This study focuses on a scheduling problem in a flexible flow shop, where there are serial stages, each with identical parallel machines. We suggest heuristic algorithms for the problem to minimize the total flow time of a given set of orders. Each order is composed of multiple lots and is processed on any parallel machines at each stage. This shop has reentrant flows since products for specific orders should visit the processing stages twice. We suggest algorithms of two types. The algorithms of the first type are three-phase algorithms, and the second type's algorithm is one-phase. In the first phase of three-phase algorithms, an initial sequence is obtained using priority dispatching rules, and then a construction algorithm is used to obtain sequences for each stage in the second phase. Finally, in the third phase, lots that visit the stages for the second time are scheduled using priority dispatching rules. Computational experiments are performed on randomly generated test problems to evaluate the performance of the suggested algorithms. Results show that the order-based algorithms perform better than the lot-based algorithms and an algorithm used in practice.
本文研究了一个柔性流水车间的调度问题,该车间有多个阶段,每个阶段都有相同的并行机。我们建议启发式算法的问题,以尽量减少总流时间的一组给定的订单。每个订单由多个批次组成,并在每个阶段在任何并行机器上处理。该商店具有可重入流,因为特定订单的产品应该访问两次处理阶段。我们提出了两种算法。第一类算法为三相算法,第二类算法为单相算法。在三阶段算法的第一阶段,使用优先级调度规则获得初始序列,然后在第二阶段使用构造算法获得每个阶段的序列。最后,在第三阶段,使用优先级调度规则对第二次访问阶段的批进行调度。在随机生成的测试问题上进行了计算实验,以评估所建议算法的性能。结果表明,基于顺序的算法比基于批量的算法和实际使用的算法性能更好。
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引用次数: 0
Supply Network Risk Analysis from Social and Bayesian Network Perspectives 社会与贝叶斯网络视角下的供应网络风险分析
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.1
EuiBeom Jeong, DaeSoo Kim
As firms are exposed to various risks, supply network risk management has become important. Previous studies have conducted supply network risk research from various perspectives, particularly due to the severity of supply disruption to buying firms. While the existing studies have identified those suppliers based on centrality measures of their positions in the supply network mostly from the social network perspective, there was also a limitation in quantitatively assessing the suppliers’ disruption risk in the network. Therefore, this study intended to theoretically expand and develop the study on the supply network risk from the existing social network perspective by applying the Bayesian network analysis. So we used the Bayesian network analysis to quantitatively assess the suppliers’ disruption risk in the supply network and measure their risk impact on the focal firm. Through it, we identified the network properties of the critical suppliers that the focal firm should pay attention to for its effective supply network risk management and suggested related insights.
由于企业面临各种风险,供应网络风险管理变得非常重要。以前的研究从不同的角度进行了供应网络风险研究,特别是考虑到供应中断对购买公司的严重程度。虽然现有的研究大多是从社会网络的角度,根据供应商在供应网络中的位置的中心性度量来确定供应商,但在定量评估供应商在网络中的中断风险方面也存在局限性。因此,本研究拟运用贝叶斯网络分析,从已有的社会网络视角对供应网络风险的研究进行理论上的拓展和发展。因此,我们利用贝叶斯网络分析定量评估了供应商在供应网络中的中断风险,并衡量了其对焦点企业的风险影响。通过它,我们确定了焦点企业在有效管理供应网络风险时应注意的关键供应商的网络属性,并提出了相关的见解。
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引用次数: 0
Investigation of Competitive Factors for Early Morning Delivery Service Operations Using Analytical Hierarchy Process 基于层次分析法的早送业务竞争因素研究
Pub Date : 2023-02-28 DOI: 10.32956/kopoms.2023.34.1.145
Hyeon Ah Lee, S. B. Park, Hye Bin Park, S. Yoo
This study analyzes the performance factors from the consumer's point of view to strengthen the competitiveness of early-morning delivery companies. Through literature review and case analyses, the performance factors of early morning delivery services are derived in terms of product and service. The performance factors in the product aspect are product excellence, price efficiency, and product diversity, and the service aspect performance factors are after-sales service, product packaging, the company's eco-friendly image, and the company's social contribution image. Based on the consumer survey, we conducted an AHP analysis to analyze the importance, weight, and priorities of early morning delivery service performance factors. The analysis found that maintaining and improving the basic production factors is more important than improving the service factors. Through gender analysis, we reveal that women, the main consumers, consider affordable prices more important than high-quality products. In addition, customers under the age of thirty, who will be major future customers, consider improving after-sales service as the most crucial factor in choosing an early-morning delivery company. Therefore, it is necessary to have a fast and convenient after-sales service process.
本研究从消费者的角度分析绩效因素,以增强清晨快递公司的竞争力。通过文献综述和案例分析,从产品和服务两个方面推导出了快递服务的绩效因素。产品方面的绩效因素是产品的卓越性、价格效率、产品的多样性,服务方面的绩效因素是售后服务、产品包装、公司的环保形象、公司的社会贡献形象。在消费者调查的基础上,我们进行了AHP分析,分析了清晨配送服务绩效因素的重要性、权重和优先级。分析发现,保持和改善基本生产要素比改善服务要素更为重要。通过性别分析,我们发现,女性作为主要消费者,认为实惠的价格比高质量的产品更重要。此外,30岁以下的顾客将成为未来的主要顾客,他们认为改善售后服务是选择清晨快递公司的最关键因素。因此,有一个快速方便的售后服务流程是很有必要的。
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引用次数: 0
Evolution of the Korean Automotive Industry Supply Network: An Exploratory Study Based on SAOM (Stochastic Actor-Oriented Model)* 韩国汽车工业供应网络的演化:基于随机因素导向模型的探索性研究*
Pub Date : 2022-12-30 DOI: 10.32956/kopoms.2022.33.4.699
Ahrom Kang, Joongsan Oh, Chulsoon Park
Most studies on the supply network structure have focused on revealing the “stationary’ network structure based on cross-sectional data. However, when the supply network is defined as a complex adaptive system that is a dynamic process, it is particularly important to explore its structure and evolution. Therefore, this study empirically analyzed how and through which micro-mechanisms the traditional vertical structure of the Korean automotive industry supply network is evolving into a horizontal structure. The results confirmed that new firms were continuously entering the Korean automotive industry supply network, and transaction relationships that were not found in the traditional supply chain structure were increasing. Additionally, among the existing suppliers, high-performing suppliers continued to form new transaction relationships while maintaining existing relationships. The significance of this study is as follows. SAOM was applied to the supply network of the Korean automotive industry for the first time, and the existing vertical and linear relationship studies were expanded from a network perspective. Furthermore, unlike the existing supply network-related studies, which were limited to an analysis at a specific point in time, the dynamic evolution of the supply network was identified.
大多数关于供给网络结构的研究都是基于截面数据揭示“平稳”的供给网络结构。然而,当供应网络被定义为一个动态过程的复杂自适应系统时,探索其结构和演变就显得尤为重要。因此,本研究实证分析了韩国汽车产业供应网络的传统垂直结构如何以及通过哪些微观机制演变为水平结构。结果证实,新的企业不断进入韩国汽车产业供应网络,传统供应链结构中没有发现的交易关系正在增加。此外,在现有供应商中,高绩效供应商在维持现有关系的同时继续形成新的交易关系。本研究的意义在于:SAOM首次应用于韩国汽车工业的供应网络,从网络的角度扩展了现有的垂直和线性关系研究。此外,与现有的供应网络相关研究不同,这些研究仅限于对特定时间点的分析,该研究确定了供应网络的动态演变。
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引用次数: 0
The Optimal Set of Orders and Courier Path for Food Delivery Services 食品配送服务的最优订单集和快递路径
Pub Date : 2022-12-30 DOI: 10.32956/kopoms.2022.33.4.665
Jin-Young Yang, Haengju Lee
This study deals with the problem of determining the optimal order selection and courier route to maximize the profit for a limited delivery time. The mixed integer programming model is developed to solve this issue. Since this research problem is similar to the travelling salesman problem (TSP), it is considered an NP-hard (non-deterministic polynomial-time hard) problem. Hence, the time to find the optimal solution increases exponentially as the number of orders increases. To deal with this complexity, we develop three types of heuristic algorithms that can be used to solve real-world problems. Through various numerical experiments, we show that the developed algorithms perform well.
本文研究在有限的交货时间内,如何确定最优的订单选择和快递路线以实现利润最大化的问题。为了解决这一问题,提出了混合整数规划模型。由于本研究问题类似于旅行推销员问题(TSP),因此被认为是np困难(非确定性多项式时间困难)问题。因此,寻找最优解的时间随着订单数量的增加呈指数增长。为了处理这种复杂性,我们开发了三种启发式算法,可用于解决现实世界的问题。通过各种数值实验,我们证明了所开发的算法性能良好。
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引用次数: 0
IT 발전과 교통 서비스 안전성 유럽 열차 사고를 중심으로 IT发展与交通服务安全性以欧洲列车事故为中心
Pub Date : 2022-12-30 DOI: 10.32956/kopoms.2022.33.4.679
Ho-Sun Shin, Stefan Bister, Sangjo Lee
This study aims to find empirical evidence of the contribution of information technology (IT) adoption in enhancing transportation safety. We analyze train accidents that occurred in European countries between 1980 and 2014. The findings indicate that the adoption of IT leads to a lower number of accidents, thus improving safety. Specifically, countries with a high level of IT adoption for their track networks show fewer serious accidents than those with low IT adoption. However, serious accidents have not decreased over time, indicating a limited positive effect of IT adoption. In addition, serious accidents such as rolling stocks and people at crossings continue to occur. The results indicate that improvement in transportation safety leveraged by intangible IT must accompany the quality assurance of physical systems and activities in basic transportation services.
本研究旨在寻找资讯科技在提升交通安全上的贡献。我们分析了1980年至2014年间发生在欧洲国家的火车事故。调查结果表明,采用信息技术导致事故数量减少,从而提高了安全性。具体来说,轨道网络IT采用率高的国家比IT采用率低的国家发生的严重事故更少。然而,严重事故并没有随着时间的推移而减少,这表明采用IT的积极影响有限。此外,铁路车辆和行人等严重事故不断发生。结果表明,利用无形信息技术提高运输安全必须伴随着基本运输服务的物理系统和活动的质量保证。
{"title":"IT 발전과 교통 서비스 안전성 유럽 열차 사고를 중심으로","authors":"Ho-Sun Shin, Stefan Bister, Sangjo Lee","doi":"10.32956/kopoms.2022.33.4.679","DOIUrl":"https://doi.org/10.32956/kopoms.2022.33.4.679","url":null,"abstract":"This study aims to find empirical evidence of the contribution of information technology (IT) adoption in enhancing transportation safety. We analyze train accidents that occurred in European countries between 1980 and 2014. The findings indicate that the adoption of IT leads to a lower number of accidents, thus improving safety. Specifically, countries with a high level of IT adoption for their track networks show fewer serious accidents than those with low IT adoption. However, serious accidents have not decreased over time, indicating a limited positive effect of IT adoption. In addition, serious accidents such as rolling stocks and people at crossings continue to occur. The results indicate that improvement in transportation safety leveraged by intangible IT must accompany the quality assurance of physical systems and activities in basic transportation services.","PeriodicalId":436415,"journal":{"name":"Korean Production and Operations Management Society","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125745223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Korean Production and Operations Management Society
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