首页 > 最新文献

Asian Journal of Shipping and Logistics最新文献

英文 中文
Containership new-building orders and freight rate shocks: A “wait and see” perspective 集装箱船新造船订单和运价冲击:“观望”观点
IF 3.1 Q2 TRANSPORTATION Pub Date : 2023-03-01 DOI: 10.1016/j.ajsl.2023.01.001
Nektarios A. Michail , Konstantinos D. Melas

This paper studies the behaviour of shipping investors following an unexpected shock in the freight rates, while accounting for costs (fuel), and the macro environment (stock prices and trade). The estimates firstly confirm the existence of a long-term relationship between the macroeconomic environment and freight rates, as well as between that and newbuilding orders. Most importantly, we find that when the source of the shock is less clear but still causes an increase in freight rates, shipping investors respond with a delay, which could last almost a year. The thinking behind this “inaction period” is rational, given that the only way to observe whether a shock is permanent or transitory is to wait it out. The above findings have important policy implications not only for shipping investors but also for countries that rely heavily on their ship-building industries.

本文研究了航运投资者在考虑成本(燃料)和宏观环境(股票价格和贸易)的情况下,在运费意外冲击下的行为。这些估计数首先证实了宏观经济环境与运费之间以及与新造船订单之间存在着长期关系。最重要的是,我们发现,当冲击的来源不太清楚,但仍导致运费上涨时,航运投资者的反应是延迟,这可能会持续近一年。这种“不作为期”背后的想法是理性的,因为观察冲击是永久的还是暂时的唯一方法就是等待它过去。上述调查结果不仅对航运投资者而且对严重依赖其造船业的国家具有重要的政策意义。
{"title":"Containership new-building orders and freight rate shocks: A “wait and see” perspective","authors":"Nektarios A. Michail ,&nbsp;Konstantinos D. Melas","doi":"10.1016/j.ajsl.2023.01.001","DOIUrl":"https://doi.org/10.1016/j.ajsl.2023.01.001","url":null,"abstract":"<div><p>This paper studies the behaviour of shipping investors following an unexpected shock in the freight rates, while accounting for costs (fuel), and the macro environment (stock prices and trade). The estimates firstly confirm the existence of a long-term relationship between the macroeconomic environment and freight rates, as well as between that and newbuilding orders. Most importantly, we find that when the source of the shock is less clear but still causes an increase in freight rates, shipping investors respond with a delay, which could last almost a year. The thinking behind this “inaction period” is rational, given that the only way to observe whether a shock is permanent or transitory is to wait it out. The above findings have important policy implications not only for shipping investors but also for countries that rely heavily on their ship-building industries.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"39 1","pages":"Pages 30-37"},"PeriodicalIF":3.1,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49894029","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: 3
Performance efficiency assessment of Vietnamese ports: An application of Delphi with Kamet principles and DEA model 越南港口绩效效率评价:基于德尔菲卡梅原理和DEA模型的应用
IF 3.1 Q2 TRANSPORTATION Pub Date : 2023-03-01 DOI: 10.1016/j.ajsl.2022.10.002
Thi Nhu-Mai Nong

Ports form important links in the overall trade chain and act as driving forces for marine economic development. However, the operation of ports also has certain difficulties and challenges that port operators need to overcome. As such, this research aims to measure the performance efficiency of 22 ports listed in the stock market in Vietnam – a developing country with notable progress and role in global seaborne transport. The hybrid method of Delphi technique with KAMET principle and input and output – oriented DEA method was applied to solve the problem of efficiency assessment. The Delphi technique with KAMET principle was used to determine the efficiency evaluation criteria whilst the input and output – oriented DEA was employed to measure the efficiency. The findings show that capital, operation expenses, labour, port area, quay length, depth, revenue, and cargo throughputs are considered as input and output variables in the port efficiency evaluation. Additionally, it is also concluded in the research that scale and management skills are the dominant source of efficiency and Vietnamese ports show rather high management skills. Moreover, comprehensive and multi-variable assessment of port system may bring lots of benefits not only to the decision-making units but also the maritime authorities within constraint funds.

港口是整个贸易链中的重要环节,是海洋经济发展的动力。但是,港口的运营也有一定的困难和挑战,需要港口经营者克服。因此,本研究旨在衡量越南22个在股票市场上市的港口的绩效效率,越南是一个在全球海运中取得显著进步和作用的发展中国家。采用基于KAMET原理的德尔菲法与面向投入产出的DEA法相结合的混合方法来解决效率评价问题。采用德尔菲法和KAMET原理确定效率评价标准,采用面向投入产出的DEA法测量效率。研究结果表明,资本、运营费用、劳动力、港口面积、码头长度、深度、收入和货物吞吐量是港口效率评价的输入和输出变量。此外,研究还得出结论,规模和管理技能是效率的主要来源,越南港口显示出相当高的管理技能。此外,在资金有限的情况下,对港口系统进行综合、多变量的评估,不仅可以为决策单位带来诸多效益,也可以为海事管理部门带来诸多效益。
{"title":"Performance efficiency assessment of Vietnamese ports: An application of Delphi with Kamet principles and DEA model","authors":"Thi Nhu-Mai Nong","doi":"10.1016/j.ajsl.2022.10.002","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.10.002","url":null,"abstract":"<div><p>Ports form important links in the overall trade chain and act as driving forces for marine economic development. However, the operation of ports also has certain difficulties and challenges that port operators need to overcome. As such, this research aims to measure the performance efficiency of 22 ports listed in the stock market in Vietnam – a developing country with notable progress and role in global seaborne transport. The hybrid method of Delphi technique with KAMET principle and input and output – oriented DEA method was applied to solve the problem of efficiency assessment. The Delphi technique with KAMET principle was used to determine the efficiency evaluation criteria whilst the input and output – oriented DEA was employed to measure the efficiency. The findings show that capital, operation expenses, labour, port area, quay length, depth, revenue, and cargo throughputs are considered as input and output variables in the port efficiency evaluation. Additionally, it is also concluded in the research that scale and management skills are the dominant source of efficiency and Vietnamese ports show rather high management skills. Moreover, comprehensive and multi-variable assessment of port system may bring lots of benefits not only to the decision-making units but also the maritime authorities within constraint funds.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"39 1","pages":"Pages 1-12"},"PeriodicalIF":3.1,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49871858","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: 5
The impacts of demand and supply shocks in the dry bulk shipping market 供需冲击对干散货航运市场的影响
IF 3.1 Q2 TRANSPORTATION Pub Date : 2023-03-01 DOI: 10.1016/j.ajsl.2022.10.004
Sunghwa Park , Hyunsok Kim , Janghan Kwon

The freight rate is a representative variable in the shipping market and is characterized by a cyclical relationship. Even though downturns in the shipping market, such as the shipping industry recession in the 1980s, the global financial crisis in 2008 and COVID-19 crisis in 2020, recur, few studies have analyzed the dynamic relationship between supply and demand in terms of its effect on freight rates. Thus, this study classifies the factors affecting fluctuations in dry cargo freight rates into demand, supply, and freight rate specific demand factors, which play the most important role in managing risk in the shipping market. Based on the recursive structural vector autoregressive (recursive SVAR) model, we analyze the historical contributions of the effects of each factor across different time periods. Two main findings are summarized as follows: first, we identify the dynamic relationship between factors affecting BDI in the shipping market, and reveal that the magnitude and direction of factors are different. Second, we verify that in an extreme situation in which freight rates exceed the normal range, the market is overheated, and freight rates are therefore determined by the freight rate specific demand of market participants rather than by the actual supply and demand.

运价是航运市场中具有代表性的变量,具有周期性关系的特点。尽管航运市场的低迷(如20世纪80年代的航运业衰退、2008年的全球金融危机和2020年的新冠肺炎危机)时有发生,但很少有研究分析供需之间的动态关系对运费的影响。因此,本研究将影响干货运价波动的因素分为需求因素、供应因素和运价特定需求因素,这些因素在航运市场风险管理中发挥着最重要的作用。基于递归结构向量自回归(递归SVAR)模型,分析了各因素在不同时期的历史贡献。主要研究结果如下:首先,我们识别了航运市场BDI影响因素之间的动态关系,并揭示了影响因素的大小和方向是不同的。其次,我们验证了在运价超出正常范围的极端情况下,市场是过热的,因此运价是由市场参与者的运价特定需求决定的,而不是由实际供需决定的。
{"title":"The impacts of demand and supply shocks in the dry bulk shipping market","authors":"Sunghwa Park ,&nbsp;Hyunsok Kim ,&nbsp;Janghan Kwon","doi":"10.1016/j.ajsl.2022.10.004","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.10.004","url":null,"abstract":"<div><p>The freight rate is a representative variable in the shipping market and is characterized by a cyclical relationship. Even though downturns in the shipping market, such as the shipping industry recession in the 1980s, the global financial crisis in 2008 and COVID-19 crisis in 2020, recur, few studies have analyzed the dynamic relationship between supply and demand in terms of its effect on freight rates. Thus, this study classifies the factors affecting fluctuations in dry cargo freight rates into demand, supply, and freight rate specific demand factors, which play the most important role in managing risk in the shipping market. Based on the recursive structural vector autoregressive (recursive SVAR) model, we analyze the historical contributions of the effects of each factor across different time periods. Two main findings are summarized as follows: first, we identify the dynamic relationship between factors affecting BDI in the shipping market, and reveal that the magnitude and direction of factors are different. Second, we verify that in an extreme situation in which freight rates exceed the normal range, the market is overheated, and freight rates are therefore determined by the freight rate specific demand of market participants rather than by the actual supply and demand.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"39 1","pages":"Pages 13-22"},"PeriodicalIF":3.1,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49894027","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: 2
Study on improvement in logistics industry in Gangwon province: Focusing on Yangyang International Airport 江原道物流产业发展研究——以阳阳国际机场为例
IF 3.1 Q2 TRANSPORTATION Pub Date : 2023-03-01 DOI: 10.1016/j.ajsl.2022.11.001
Woo Chul Ahn

This study aims to contribute to analyze the logistics competitiveness of Yangyang International Airport and suggest improvement plans for airport logistics experts to use them as basic data to discover the actual factors for revitalizing the Gangwon-do logistics industry. Therefore, the importance and performance level of airport logistics competitiveness factors were investigated and differences were analyzed. The result shows "location", "local cargo demand", " specialized cargo supra-structure", and "government support policy" were surveyed as "focus" areas with high importance awareness but low performance.

本研究旨在分析阳阳国际机场的物流竞争力,并提出改善方案,供机场物流专家作为基础数据,发现江原道物流业振兴的实际因素。因此,对机场物流竞争力因素的重要性和表现水平进行了调查,并分析了差异。结果显示,“地理位置”、“当地货物需求”、“专业化货物上层结构”和“政府支持政策”被调查为“重点”领域,其重要性意识较高,但绩效较低。
{"title":"Study on improvement in logistics industry in Gangwon province: Focusing on Yangyang International Airport","authors":"Woo Chul Ahn","doi":"10.1016/j.ajsl.2022.11.001","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.11.001","url":null,"abstract":"<div><p>This study aims to contribute to analyze the logistics competitiveness of Yangyang International Airport and suggest improvement plans for airport logistics experts to use them as basic data to discover the actual factors for revitalizing the Gangwon-do logistics industry. Therefore, the importance and performance level of airport logistics competitiveness factors were investigated and differences were analyzed. The result shows \"location\", \"local cargo demand\", \" specialized cargo supra-structure\", and \"government support policy\" were surveyed as \"focus\" areas with high importance awareness but low performance.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"39 1","pages":"Pages 23-29"},"PeriodicalIF":3.1,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49894028","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
The central tendency of the seaport-fulcrum supply chain risk in Indonesia using a rough set 使用粗糙集分析印尼海港支点供应链风险的集中趋势
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.08.003
Muhammad Reza Do. Bagus , Shinya Hanaoka

Seaports are crucial in modern global supply chain networks and systems, exerting a significant impact on the ecological area's economy. Supply chain entities play a substantial integration role, and potential threats at seaports harm chain continuity. This study proposes a rough set-based genetic algorithm, to investigate the central tendency in seaport risk implied by supply chain threats through a questionnaire evaluation. We also employ the risk score to observe the level of clarity in terms of risk probability, showing that the lower the score an attribute obtains, the more likely it is that seaport risk implies supply chain disruption. We deploy 24 risk attributes, which threaten the proposed ten-dimensional factors, based on their risk scores. The results show that the lack of storage risk planning, low punctuality of delivery goods, shortage of port capacity, congestion in waterways, and the lack of distribution risk planning, are the "best five" of the seaport-fulcrum supply chain risk, in the context of Indonesian seaport firms. These identified risk attributes not only assist seaport managers to identify potential risk-associated deficiencies of supply chain disruption but also enhance their ability to determine resilience to manage supply chain problems.

海港在现代全球供应链网络和系统中起着至关重要的作用,对生态区的经济产生重要影响。供应链实体扮演着重要的整合角色,港口的潜在威胁损害了供应链的连续性。本研究提出了一种基于粗糙集的遗传算法,通过问卷调查的方式来研究供应链威胁对港口风险的集中趋势。我们还使用风险评分来观察风险概率方面的清晰度水平,表明属性获得的评分越低,海港风险意味着供应链中断的可能性越大。我们部署了24个风险属性,它们威胁到所提出的十维因素,基于它们的风险得分。研究结果表明,在印尼港口企业的背景下,缺乏仓储风险规划、货物交付准时性低、港口容量不足、水道拥堵和缺乏配送风险规划是海港支点供应链风险的“最佳五项”。这些确定的风险属性不仅有助于港口管理者识别供应链中断的潜在风险相关缺陷,而且还增强了他们确定管理供应链问题的弹性的能力。
{"title":"The central tendency of the seaport-fulcrum supply chain risk in Indonesia using a rough set","authors":"Muhammad Reza Do. Bagus ,&nbsp;Shinya Hanaoka","doi":"10.1016/j.ajsl.2022.08.003","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.08.003","url":null,"abstract":"<div><p>Seaports are crucial in modern global supply chain networks and systems, exerting a significant impact on the ecological area's economy. Supply chain entities play a substantial integration role, and potential threats at seaports harm chain continuity. This study proposes a rough set-based genetic algorithm, to investigate the central tendency in seaport risk implied by supply chain threats through a questionnaire evaluation. We also employ the risk score to observe the level of clarity in terms of risk probability, showing that the lower the score an attribute obtains, the more likely it is that seaport risk implies supply chain disruption. We deploy 24 risk attributes, which threaten the proposed ten-dimensional factors, based on their risk scores. The results show that the lack of storage risk planning, low punctuality of delivery goods, shortage of port capacity, congestion in waterways, and the lack of distribution risk planning, are the \"best five\" of the seaport-fulcrum supply chain risk, in the context of Indonesian seaport firms. These identified risk attributes not only assist seaport managers to identify potential risk-associated deficiencies of supply chain disruption but also enhance their ability to determine resilience to manage supply chain problems.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 222-233"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092521222000281/pdfft?md5=806fb20089110a002fcc0d0fd8773cda&pid=1-s2.0-S2092521222000281-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91744632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Operational performance model for Indian container terminals using qualitative comparative analysis 采用定性比较分析的印度集装箱码头运营绩效模型
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.08.001
VPS Nihar Nanyam , Kumar Neeraj Jha

Trend forecasting shows that Indian container terminals will handle 25 million twenty-foot equivalent units (TEUs) by 2025. However, improving operational performance is the best strategy to achieve this target. Many factors have adversely affected the Indian container terminal's operational performance despite the fact that the Indian government has undertaken several initiatives. This study identifies factors and interactive effects of the factors influencing the operational performance of Indian container terminals. A conceptual model is developed using fuzzy qualitative comparative analysis (QCA) encompassing the successful factors. The conceptual model developed through QCA includes the physical characteristics, driving factors, and challenges. This study reveals the combined and individual effects of the identified factors. The results show that the most common factors are the quay infrastructure, yard infrastructure, infrastructure up-gradation, system initiatives, reefer systems, and logistics advantage. This study adds to the existing literature regarding the Indian container terminals' performance and supports the decision-makers in improving the operational performance of container terminals.

趋势预测显示,到2025年,印度集装箱码头将处理2500万标准箱(teu)。然而,提高操作性能是实现这一目标的最佳策略。尽管印度政府采取了一些措施,但许多因素对印度集装箱码头的运营业绩产生了不利影响。本研究确定了影响印度集装箱码头经营绩效的因素及其相互作用。运用模糊定性比较分析(QCA)建立了一个包含成功因素的概念模型。通过QCA开发的概念模型包括物理特征、驱动因素和挑战。这项研究揭示了所确定的因素的综合和个别影响。结果表明,最常见的因素是码头基础设施、堆场基础设施、基础设施升级、系统举措、冷藏系统和物流优势。本研究补充了关于印度集装箱码头绩效的现有文献,并为决策者提高集装箱码头的运营绩效提供了支持。
{"title":"Operational performance model for Indian container terminals using qualitative comparative analysis","authors":"VPS Nihar Nanyam ,&nbsp;Kumar Neeraj Jha","doi":"10.1016/j.ajsl.2022.08.001","DOIUrl":"10.1016/j.ajsl.2022.08.001","url":null,"abstract":"<div><p>Trend forecasting shows that Indian container terminals will handle 25 million twenty-foot equivalent units (TEUs) by 2025. However, improving operational performance is the best strategy to achieve this target. Many factors have adversely affected the Indian container terminal's operational performance despite the fact that the Indian government has undertaken several initiatives. This study identifies factors and interactive effects of the factors influencing the operational performance of Indian container terminals. A conceptual model is developed using fuzzy qualitative comparative analysis (QCA) encompassing the successful factors. The conceptual model developed through QCA includes the physical characteristics, driving factors, and challenges. This study reveals the combined and individual effects of the identified factors. The results show that the most common factors are the quay infrastructure, yard infrastructure, infrastructure up-gradation, system initiatives, reefer systems, and logistics advantage. This study adds to the existing literature regarding the Indian container terminals' performance and supports the decision-makers in improving the operational performance of container terminals.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 197-206"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092521222000268/pdfft?md5=cb97c60883d297cf4c5591ce0d385490&pid=1-s2.0-S2092521222000268-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123708602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A systematic literature review on humanitarian logistics using network analysis and topic modeling 运用网络分析和主题建模对人道主义物流进行系统的文献综述
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.10.003
Jin Ju Kim , Hyunmi Jang , Saeyeon Roh

The aim of this paper is to conduct a systematic literature review to understand the research trends, identify area of improvements and recommend the future research direction in humanitarian relief logistics (HRL). Using Netminer 4.0, keyword network analysis, keyword frequency analysis, and topic modeling analysis were undertaken. As a result, it has been identified that the number of studies on HRL continuously increased since it mounted in the mid-2010s, with the main issues changing by period. Keyword network analysis and keyword frequency analysis discovered that establishment of the HRL identity and disaster response, preparation and recovery were the main issues from 2005 to 2009. Whereas followed by education and practical logistics flow (2010 – 2014) and provision and coordination (2015 – 2019) to be the main focused area of research. Through topic modeling analysis, nine topics (preparation, coordination, stakeholders, sustainable development, facilities location, recovery, supplying and sourcing, emergent response, transportation, supplying and sourcing) were extracted. Facilities location was the most frequent topic that studied in the number of papers. Meanwhile, recovery, preparation, stakeholders, and emergent response showed downward trends but facilities location, coordination, and supplying and sourcing showing upward. This study is significant in the sense that it suggests research trends in different approach using keyword network analysis, keyword frequency analysis, network analysis and topic modeling which are one of the first attempts in research trend analysis in HRL field. This study will support HRL studies by understanding macroscopic and comprehensive way and set as a steppingstone for future research direction.

本文的目的是通过系统的文献综述,了解人道主义救援物流(HRL)的研究趋势,找出改进的领域,并建议未来的研究方向。使用Netminer 4.0进行关键词网络分析、关键词频次分析和主题建模分析。因此,我们发现,自2010年代中期以来,关于人权状况的研究数量不断增加,主要问题随时期而变化。关键词网络分析和关键词频次分析发现,2005 - 2009年HRL身份的建立和灾难响应、准备和恢复是主要问题。其次是教育和实际物流流程(2010 - 2014)以及供应和协调(2015 - 2019),这是研究的主要重点领域。通过主题建模分析,提炼出9个主题(准备、协调、利益相关者、可持续发展、设施选址、恢复、供应与采购、应急响应、运输、供应与采购)。在论文数量中,设施位置是研究频率最高的主题。与此同时,恢复、准备、利益相关者和应急响应呈下降趋势,而设施选址、协调和供应和采购呈上升趋势。本研究的意义在于,通过关键词网络分析、关键词频次分析、网络分析和主题建模等方法,提出了不同方法下的研究趋势,是HRL领域研究趋势分析的首次尝试。本研究将从宏观和综合的角度为HRL研究提供支持,并为今后的研究方向奠定基础。
{"title":"A systematic literature review on humanitarian logistics using network analysis and topic modeling","authors":"Jin Ju Kim ,&nbsp;Hyunmi Jang ,&nbsp;Saeyeon Roh","doi":"10.1016/j.ajsl.2022.10.003","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.10.003","url":null,"abstract":"<div><p>The aim of this paper is to conduct a systematic literature review to understand the research trends, identify area of improvements and recommend the future research direction in humanitarian relief logistics (HRL). Using Netminer 4.0, keyword network analysis, keyword frequency analysis, and topic modeling analysis were undertaken. As a result, it has been identified that the number of studies on HRL continuously increased since it mounted in the mid-2010s, with the main issues changing by period. Keyword network analysis and keyword frequency analysis discovered that establishment of the HRL identity and disaster response, preparation and recovery were the main issues from 2005 to 2009. Whereas followed by education and practical logistics flow (2010 – 2014) and provision and coordination (2015 – 2019) to be the main focused area of research. Through topic modeling analysis, nine topics (<em>preparation, coordination, stakeholders, sustainable development, facilities location, recovery, supplying and sourcing, emergent response, transportation, supplying and sourcing</em>) were extracted. <em>Facilities location</em> was the most frequent topic that studied in the number of papers. Meanwhile, <em>recovery, preparation, stakeholders,</em> and <em>emergent response</em> showed downward trends but <em>facilities location, coordination,</em> and <em>supplying and sourcing</em> showing upward. This study is significant in the sense that it suggests research trends in different approach using keyword network analysis, keyword frequency analysis, network analysis and topic modeling which are one of the first attempts in research trend analysis in HRL field. This study will support HRL studies by understanding macroscopic and comprehensive way and set as a steppingstone for future research direction.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 263-278"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092521222000323/pdfft?md5=75f23ab72c038aba1339b2fbd82ae1ed&pid=1-s2.0-S2092521222000323-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91744631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Transborder logistics network design for agricultural product transportation in the Greater Mekong Subregion 大湄公河次区域农产品运输跨境物流网络设计
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.10.001
Natthapong Nanthasamroeng , Surajet Khonjun , Thanatkij Srichok , Rapeepan Pitakaso , Raknoi Akkararungroeungkul , Ganokgarn Jirasirilerd , Sarinya Sirisan

This research aimed to design a transportation model for the international trade of agricultural products between Thailand, Laos, and Cambodia, known as the Great Mekong Subregion (GMS). Agricultural products are transported from a farmers’ cooperative to a foreign end market. The mathematical models GA, DE, and VaNSAS were developed to determine the optimal mode of transportation. The objectives of the proposed methods are to (1) maximize the total profit for the entire agricultural chain and (2) minimize the makespan or the arrival time of the containers to the end market in order to maintain the freshness of the agricultural product. The computational result shows that VaNSAS produces a 100 % optimal solution for small-size problem instances, while DE and GA produce a 63.63 % and 72.72 % optimal solution, respectively. For large-size problem instances, VaNSAS shows a profit that is higher than that of DE and GA by 10.53 % and 8.96 %, respectively, while it shows a makespan that is lower by 9.57 % and 7.20 %, respectively.

本研究旨在为泰国、老挝和柬埔寨之间的农产品国际贸易设计一个运输模式,即大湄公河次区域(GMS)。农产品从农民合作社运往国外终端市场。建立了GA、DE和VaNSAS数学模型来确定最优运输方式。所提出的方法的目标是:(1)最大化整个农业链的总利润;(2)最小化集装箱到达终端市场的最长时间或到达时间,以保持农产品的新鲜度。计算结果表明,对于小尺寸问题实例,VaNSAS算法的最优解为100%,而DE算法和GA算法的最优解分别为63.63%和72.72%。对于大型问题实例,VaNSAS的利润分别比DE和GA高10.53%和8.96%,而makespan则分别低9.57%和7.20%。
{"title":"Transborder logistics network design for agricultural product transportation in the Greater Mekong Subregion","authors":"Natthapong Nanthasamroeng ,&nbsp;Surajet Khonjun ,&nbsp;Thanatkij Srichok ,&nbsp;Rapeepan Pitakaso ,&nbsp;Raknoi Akkararungroeungkul ,&nbsp;Ganokgarn Jirasirilerd ,&nbsp;Sarinya Sirisan","doi":"10.1016/j.ajsl.2022.10.001","DOIUrl":"10.1016/j.ajsl.2022.10.001","url":null,"abstract":"<div><p>This research aimed to design a transportation model for the international trade of agricultural products between Thailand, Laos, and Cambodia, known as the Great Mekong Subregion (GMS). Agricultural products are transported from a farmers’ cooperative to a foreign end market. The mathematical models GA, DE, and VaNSAS were developed to determine the optimal mode of transportation. The objectives of the proposed methods are to (1) maximize the total profit for the entire agricultural chain and (2) minimize the makespan or the arrival time of the containers to the end market in order to maintain the freshness of the agricultural product. The computational result shows that VaNSAS produces a 100 % optimal solution for small-size problem instances, while DE and GA produce a 63.63 % and 72.72 % optimal solution, respectively. For large-size problem instances, VaNSAS shows a profit that is higher than that of DE and GA by 10.53 % and 8.96 %, respectively, while it shows a makespan that is lower by 9.57 % and 7.20 %, respectively.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 245-262"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209252122200030X/pdfft?md5=cb92dd562dd62b4c6d7c1ba994a6b019&pid=1-s2.0-S209252122200030X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124497279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Structural changes in the cruise network by ship size in Northeast Asia 东北亚邮轮网络的结构变化
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.08.002
Hirohito Ito , Shinya Hanaoka , Kashin Sugishita

Several ports want cruise ships to call at their ports for economic benefits. However, the main cause of concern is the complexity of port selection behavior for cruise lines. Tracking cruise ship movement data may help them understand the port selection behavior of cruise lines. This study aimed to examine the structural changes in the cruise network by ship size in Northeast Asia from 2014 to 2019 using network science methods with automatic identification system data. We identified five key findings. First, the number of nodes and edges in the mega- and small-size ship networks was growing rapidly. Second, the small-size network was growing with unique characteristics of low density and average clustering coefficient, and high average shortest path length and diameter. Third, the hub ports of Shanghai in the mega- and Hiroshima and Kobe in the small-size had gained more degrees over time. Fourth, owing to the deployment of new mega-ships in Shanghai, existing large- and mid-ships were shifting to different ports. Finally, modularity of all sizes increased over time, and the community structure became clearer.

几个港口希望游轮停靠他们的港口以获得经济效益。然而,引起关注的主要原因是邮轮公司港口选择行为的复杂性。跟踪邮轮运动数据可以帮助他们了解邮轮公司的港口选择行为。本研究旨在利用网络科学方法,结合自动识别系统数据,研究2014 - 2019年东北亚地区按船舶规模划分的邮轮网络结构变化。我们确定了五个关键发现。一是大、小型船舶网络节点和边缘数量快速增长。二是小尺度网络以低密度和平均聚类系数、高平均最短路径长度和直径的特点不断增长;第三,随着时间的推移,上海的大型枢纽港和广岛、神户的小型枢纽港获得了更多的程度。第四,由于在上海部署了新的巨型船舶,现有的大型和中型船舶正在转向不同的港口。最后,随着时间的推移,各种规模的模块化都在增加,社区结构也变得更加清晰。
{"title":"Structural changes in the cruise network by ship size in Northeast Asia","authors":"Hirohito Ito ,&nbsp;Shinya Hanaoka ,&nbsp;Kashin Sugishita","doi":"10.1016/j.ajsl.2022.08.002","DOIUrl":"https://doi.org/10.1016/j.ajsl.2022.08.002","url":null,"abstract":"<div><p>Several ports want cruise ships to call at their ports for economic benefits. However, the main cause of concern is the complexity of port selection behavior for cruise lines. Tracking cruise ship movement data may help them understand the port selection behavior of cruise lines. This study aimed to examine the structural changes in the cruise network by ship size in Northeast Asia from 2014 to 2019 using network science methods with automatic identification system data. We identified five key findings. First, the number of nodes and edges in the mega- and small-size ship networks was growing rapidly. Second, the small-size network was growing with unique characteristics of low density and average clustering coefficient, and high average shortest path length and diameter. Third, the hub ports of Shanghai in the mega- and Hiroshima and Kobe in the small-size had gained more degrees over time. Fourth, owing to the deployment of new mega-ships in Shanghai, existing large- and mid-ships were shifting to different ports. Finally, modularity of all sizes increased over time, and the community structure became clearer.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 207-221"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S209252122200027X/pdfft?md5=b2647ba22b714c5dcc0dcdc519ee9c22&pid=1-s2.0-S209252122200027X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91744633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Simultaneous tasks as a contributory factor to maritime accidents: A socio-cultural approach 同时任务作为海上事故的促成因素:一种社会文化方法
IF 3.1 Q2 TRANSPORTATION Pub Date : 2022-12-01 DOI: 10.1016/j.ajsl.2022.09.001
Asanka Rajapakse , Gholam Reza Emad , Margareta Lützhöft , Michelle Grech

Analyses of accident investigation reports show that attempting to simultaneously perform tasks onboard ships to manage workload has led to many accidents at sea. These accident reports point out that seafarers fail to follow procedures as expected by shipping companies when conducting tasks simultaneously. Only a handful of studies that examined such discrepancies between work as imagined by shipping companies and work as actually done by seafarers exist. This study aims to examine why seafarers engage in simultaneous tasks, which may lead to accidents. In an exploratory qualitative study, face-to-face interviews were conducted with selective and targeted seafarers previously involved in maritime accidents. The collected data were analysed using interpretive and descriptive qualitative methods with a socio-cultural approach. The findings of this study show that the substantial regulatory changes over the years in the maritime industry have resulted in increased occupational workload for seafarers. Some of these regulatory barriers designed to improve safety at sea prompted seafarers to engage in simultaneous tasks to perform excessive paperwork and compensate for insufficient crewing. The research also revealed how a poor speak-up culture onboard might encourage simultaneous tasks leading to accidents at sea. The analysis shows that reasons for engaging in simultaneous tasks at sea are varied and complex. Therefore, complex intervention efforts to discourage seafarers from engaging in simultaneous tasks is needed to mitigate accidents at sea.

对事故调查报告的分析表明,试图在船上同时执行任务以管理工作量已经导致了许多海上事故。这些事故报告指出,海员在同时执行任务时未能按照船公司的预期程序进行操作。只有少数研究调查了航运公司想象中的工作与海员实际工作之间的差异。本研究旨在探讨海员从事可能导致事故的同步任务的原因。在一项探索性质的研究中,对以前参与过海上事故的有选择性和有针对性的海员进行了面对面访谈。收集的数据使用社会文化方法的解释性和描述性定性方法进行分析。本研究的结果表明,多年来海运业的重大监管变化导致海员的职业工作量增加。其中一些旨在提高海上安全的监管障碍,促使海员同时从事过多的文书工作,并弥补船员不足。该研究还揭示了船上糟糕的直言文化可能会鼓励同时执行任务,从而导致海上事故。分析表明,从事海上同时任务的原因是多种多样和复杂的。因此,需要采取复杂的干预措施,阻止海员同时从事任务,以减少海上事故。
{"title":"Simultaneous tasks as a contributory factor to maritime accidents: A socio-cultural approach","authors":"Asanka Rajapakse ,&nbsp;Gholam Reza Emad ,&nbsp;Margareta Lützhöft ,&nbsp;Michelle Grech","doi":"10.1016/j.ajsl.2022.09.001","DOIUrl":"10.1016/j.ajsl.2022.09.001","url":null,"abstract":"<div><p>Analyses of accident investigation reports show that attempting to simultaneously perform tasks onboard ships to manage workload has led to many accidents at sea. These accident reports point out that seafarers fail to follow procedures as expected by shipping companies when conducting tasks simultaneously. Only a handful of studies that examined such discrepancies between work as imagined by shipping companies and work as actually done by seafarers exist. This study aims to examine why seafarers engage in simultaneous tasks, which may lead to accidents. In an exploratory qualitative study, face-to-face interviews were conducted with selective and targeted seafarers previously involved in maritime accidents. The collected data were analysed using interpretive and descriptive qualitative methods with a socio-cultural approach. The findings of this study show that the substantial regulatory changes over the years in the maritime industry have resulted in increased occupational workload for seafarers. Some of these regulatory barriers designed to improve safety at sea prompted seafarers to engage in simultaneous tasks to perform excessive paperwork and compensate for insufficient crewing. The research also revealed how a poor speak-up culture onboard might encourage simultaneous tasks leading to accidents at sea. The analysis shows that reasons for engaging in simultaneous tasks at sea are varied and complex. Therefore, complex intervention efforts to discourage seafarers from engaging in simultaneous tasks is needed to mitigate accidents at sea.</p></div>","PeriodicalId":46505,"journal":{"name":"Asian Journal of Shipping and Logistics","volume":"38 4","pages":"Pages 234-244"},"PeriodicalIF":3.1,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2092521222000293/pdfft?md5=b92203143e7736045044a842fe4f0646&pid=1-s2.0-S2092521222000293-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128127631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
Asian Journal of Shipping and Logistics
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1