Logistics eJournal最新文献

{"title":"Supply Chain Proximity and Product Quality","authors":"R. Bray, J. C. Serpa, A. Colak","doi":"10.2139/ssrn.2808904","DOIUrl":"https://doi.org/10.2139/ssrn.2808904","url":null,"abstract":"We estimate the effect of supply chain proximity on product quality. Merging four automotive data sets, we create a supply chain sample that reports the failure rate of 27,807 auto components, the location of 529 upstream component factories, and the location of 275 downstream assembly plants. We find that defect rates are higher when upstream and downstream factories are farther apart. Specifically, we estimate that increasing the distance between an upstream component factory and a downstream assembly plant by an order of magnitude increases the component’s expected defect rate by 3.9%. We find that quality improves more slowly across geographically dispersed supply chains. We also find that supply chain distance is more detrimental to quality when automakers produce early-generation models or high-end products, when they buy components with more complex configurations, or when they source from suppliers who invest relatively little in research and development. This paper was accepted by Vishal Gaur, operations management.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128698581","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}

{"title":"Calculation of the Parameters of the Composite Conveyor Line With a Constant Speed of Movement of Subjects of Labour","authors":"O. Pihnastyi, V. Khodusov","doi":"10.29202/nvngu/2018-4/18","DOIUrl":"https://doi.org/10.29202/nvngu/2018-4/18","url":null,"abstract":"The development of analytical methods for calculating the parameters of a composite conveyor line using the models containing partial differential equations. To calculate the parameters of the conveyor line with a constant speed of movement of subjects of labour, the apparatus of mathematical physics is used. The solution is given in an analytic form that specifies the state parameters of the production line for a given technology's position as a function of time. The scientific novelty of the results is the improvement of PDE-models of production systems of a conveyor type. The method for calculating the parameters of conveyor production, consisting of two connecting conveyor lines with a constant speed of movement of subjects of labour is offered. The considered method of calculation of conveyor production can be extended in case of a system with an arbitrary number of connecting conveyor lines. The practical significance lies in the fact that the proposed method for calculating the parameters of conveyor production can be used to design control systems for conveyor production with an arbitrary number of conveyor lines. An essential advantage of this method is that each conveyor line is described by a single partial differential equation, the solution to which is obtained analytically. Such a representation makes it possible to use solutions for predicting the state parameters of a production line.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134484566","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}

{"title":"It's Raining, It's Pouring, the Inspector is Snoring: Task Selection in Varying Work Environments","authors":"A. Scott","doi":"10.2139/ssrn.3212855","DOIUrl":"https://doi.org/10.2139/ssrn.3212855","url":null,"abstract":"Workers often have discretion over their schedules and the tasks they perform. One factor likely to influence a worker’s scheduling decision is the work environment – some environments are better than others. We study how workers change their productive output and select different tasks as the desirability of the work environment changes. We pair longitudinal data from more than 16 million inspections conducted by roadside inspectors across the continental United States with weather data at the time of inspection. We find that inspectors reduce their output in bad weather – up to 16.2% on unusually cold days, and more in the rain and snow. Inspectors are more likely to choose tasks with less exposure to the weather on days with bad weather, and find fewer violations per inspection. Consistent with prior research, inspectors find fewer violations as they grow fatigued; they also select easier tasks. This research has implications for job design, inspection bias, and transportation safety.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122853521","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}

{"title":"The Relationship Linking Supply Logistic Integration, Supply Performance and Lean Processes Towards Competitive Performance","authors":"Nur Athirah Osman","doi":"10.2139/ssrn.3090128","DOIUrl":"https://doi.org/10.2139/ssrn.3090128","url":null,"abstract":"Purpose - The purpose of this paper is to examine the value chain processes that represent the “black box” between supply logistics integration and competitive operational performance in firms. To realize this objective, the authors develop a research model, which comprises a series of linkages from supply logistics integration to operational outcomes using Porter’s concept of value chain and the relational view of resource-based theory as theoretical lenses. Design/methodology/approach - The data set for testing the hypothesized relationships in this study was drawn from Malaysian manufacturing firms. Findings - The data set for testing the hypothesized relationships in this study was drawn from Malaysian manufacturing firms. Practical Implication - This study re-emphasizes the importance of building production process capabilities based on the effective principles of lean practices and supplier management. Research limitations/implications - The study shows the importance of managing both internal (production processes) and external processes (logistics supply chain) of firms’ operations in an integrated manner in which supply integration act through key internal processes to impact competitive performance which the end customers actually experience. Originality/value - This is the first study, which uncovers what happens “in between” the incoming materials and the end outputs delivered by firms into the market. Thia “in between black box” is important in improving our understanding of how inbound supply activities are translated into outbound competitive performance outcomes.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127393211","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}

{"title":"Optimization of Food Commodity Supply Chain in Logistics Service Provider Business by Implementing Lean Management","authors":"Manpreet Singh","doi":"10.2139/ssrn.3071632","DOIUrl":"https://doi.org/10.2139/ssrn.3071632","url":null,"abstract":"According to recent studies, the increasing demand and productivity in food commodity business has been able to enlighten the importance of outsourcing. Food industry has been found most prominent in outsourcing corresponding to the largest percentage of goods as compared to other industries, which results in creating a more complex and substantial supply chain structure. Due to the complexity of supply chain operations, the Logistics service provider business is facing a decline in demand fulfilment consequently increasing lead times and wastage which cost them a fortune. One approach in reducing complexity and maintaining flexibility is lean management. Essential features of lean management include maintenance of low inventories, better flow of goods, reduce wastage, low lead times and reduce unnecessary movement involved in food commodity supply chain. One of the major factor in food commodity supply chain is ageing of food products. With lean management, a continuous flow of products can be achieved and will helps in lowering the risk of ageing. An increasing number of experts and professionals are storming to make the lean management implementable to different businesses to increase the profitability of the businesses. Consequently, lean tools have been developed and modified to simplify logistics service provider businesses. Significant research remains to shows the implementation map of lean management in food commodity supply chain at Logistics Service Provider business. This research will focus on the methods, principles and tools for implementing lean management in LSP business. This will provide methodology for applying lean in different LSP businesses, which will assist to regulate wastage and lead times in food commodity supply chain. The paper concludes that Lean management is applicable to optimize the Logistics Service Provider business in food commodity supply chain. Furthermore, combination of two or more different lean management tools is provided useful in finding problem, on the contrary helps to resolve it with a continuous upbringing approach.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114999047","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}

{"title":"The Global Shift in Fast Fashion Industry and Its Implication in Supply Chain Management","authors":"Zhuang Zhou","doi":"10.2139/ssrn.3067251","DOIUrl":"https://doi.org/10.2139/ssrn.3067251","url":null,"abstract":"This research question of this paper is to interpret some root causes of a global shift in fast fashion industry and to provide a specific view of its implications in supply chain management. The paper takes methodology of literature review and case study for the reasons of global shift. On the other hand, an interdependent analysis is applied to discover a distinct perspective of supply chain through a set of key drivers. These key drivers establish a system of implications in four components: product value, information, total cost and speed to market, to provide some interesting findings and conclusions in fast fashion industry. In the end, the paper discusses findings combined with three root causes of the global shift.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126170696","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}

{"title":"Implementation of Lean Banking and Continuous Improvement in an African Global Bank: The United Bank for Africa","authors":"Professor Alain Ndedi, Anie Jeane Ekeme","doi":"10.2139/ssrn.2914454","DOIUrl":"https://doi.org/10.2139/ssrn.2914454","url":null,"abstract":"In today’s marketplace, it’s much too risky to rely on the company gut for decision-making. Lean banking data analysis is an evidence-based solution that provides any innovative organization with a new view of organizational challenges with the objective to improve efficiency and data quality, effectively eliminating corporate waste. The process is an undergoing and rapid transformation in the banking industry. For an effective implementation of the process, the information technology must play an increasingly greater role in helping banks carry out marketing, sales, and channel integration initiatives, and in ensuring that banks comply with various regulatory requirements. To this end, IT in banking needs to adopt a strategic approach to managing change. \u0000This paper looks at what Information Technology Infrastructure Library (ITIL) offers to manage these corporate challenges and whether ITIL practices are sufficient to improve the Bank performance. The paper present ITIL best practices that are needed to manage risk but not sufficient to drive the Bank performance. \u0000According to Ndedi, Moutila and Tsoungui (2016), the real essence of lean is in harnessing the passion and knowledge of front-line staff and equipping them to focus on ensuring as many activities as possible within an end-to-end process support the delivery of value to the customer. The authors argued that the objectives of continuous improvement methods are to boost organizational performance; because simply meeting customer expectations is not anymore enough; customers who aren’t completely satisfied are likely to switch to another service provider. Building a culture of continuous improvement through the adoption of lean principles ensures the identification of the end-to-end process from the customer’s perspective and the design and management of those processes to ensure the smooth flow of information and material as efficiently as possible. \u0000The first part of this paper explains what the United Bank of Africa is. The second part discusses the principle of lean banking. The third part of the paper gives an overview of best practices with UBA.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"400 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124565311","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}

{"title":"Ergonomics and the Customer Satisfaction Model: Ergonomics in the Language Of Business","authors":"D. Mahto","doi":"10.2139/ssrn.2788490","DOIUrl":"https://doi.org/10.2139/ssrn.2788490","url":null,"abstract":"Ergonomics has a strong human focus and success lies in integrating the effort to the goals of business. It is suggested in this paper that ergonomics has a strong contribution to business in any continuous improvement effort. This strength lies in the focus on the human as an employee or participant in business ventures and as a customer or a recipient of the product or service. A customer satisfaction model is suggested that pulls together customer and employee oriented qualityinitiatives that are occurring across industries with examples drawn from the Lockheed Martin Tactical Aircraft Systems (LMTAS) experience to illustrate the application. The various initiatives of National Quality Awards and productivity improvements through the Lean Enterprise focus have made major changes in business processes. For the human factors and ergonomics message to be part of these current business trends it must be phrased in the language of business.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"187 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536050","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}

{"title":"VIKOR Method for Ranking Logistic Villages in Turkey (TÜRKİYE’DEKİ LOJİSTİK KÖYLERİN VIKOR YÖNTEMİ İLE SIRALANDIRILMASI)","authors":"Emrah Önder, B. Yıldırım","doi":"10.11611/JMER236","DOIUrl":"https://doi.org/10.11611/JMER236","url":null,"abstract":"English Abstract: Logistics villages are defined as a specific area of all the activities carried out by a variety of logistics-related businesses. They have specific features including size, distance to city center, accessibility, proximity to road, airport, railway, aritime, office and IT infrastructure etc. Ranking logistic villages is a complicated task due to the fact that various criteria or objectives must be considered in the decision making process. Also in many real world cases the criteria are not equally important for the logistic managers and government authorities. In this study, we proposed a logistic village ranking model considering both Analytic Hierarchy Process (AHP) and VIKOR (Vise Kriterijumska Optimizacija I Kompromisno Resenje) methods. Subjective and objective opinions of logistic managers/experts turn into quantitative form with AHP. VIKOR technique is used for calculating the logistic villages’ ranks. The aim of this paper is to rank the 11 logistic villages in Turkey including Istanbul (Halkali), Balikesir (Gokkoy), Eskisehir (Hasanbey), Izmit (Kosekoy), Usak, Denizli (Kaklik), Samsun (Gelemen), Mersin (Yenice), Kayseri (Bogazkopru ), Konya (Kayacik) and Erzurum (Palandoken). Turkish Abstract: Lojistik koyler bircok lojistik ile ilgili aktivitelerin gerceklestirildigi ozellikli alanlar olarak tanimlanabilir. Bu koylerin buyuklugu, sehir merkezine olan uzakligi, erisilebilirligi, karayollarina/havaalanlarina/ demir yollarina/limanlara olan mesafeleri, ofisler ve bilisim altyapisi vb. ozellikleri onem arz etmektedir. Lojistik koylerin siralamasi karar verme surecinde bircok kriter ve amacin dikkate alinmasi gerektigi icin karmasik bir islemdir. Ayrica bircok gercek hayat vakasinda lojistik sektor yoneticileri ve kamu karar vericilerine gore kriterler esit oneme sahip degildir. Bu calismada Analitik Hiyerarsi Prosesi (AHP) ve VIKOR (Vise Kriterijumska Optimizacija I Kompromisno Resenje) yontemleri birlikte kullanilarak lojistik koylerin siralandirilmasina iliskin model onerilmektedir. AHP lojistik sektoru yoneticileri/uzmanlarina ait subjektif ve/veya objektif fikirlerin nicel sekilde gosterilebilmesi icin kullanilmistir. VIKOR yontemi ise lojistik koylerin siralandirilmasinda kullanilmistir. Bu analizde amac Turkiye’deki 11 lojistik koyun (Istanbul-Halkali, Balikesir-Gokkoy, Eskisehir-Hasanbey, Izmit-Kosekoy, Usak, Denizli-Kaklik, Samsun-Gelemen, Mersin-Yenice, Kayseri-Bogazkopru, Konya-Kayacik ve Erzurum-Palandoken) siralanmasidir.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127794267","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}

{"title":"Study of the Robustness of the European Air Routes Network","authors":"Oriol Lordan, Joel Florido, J. Sallan, Vicenc Fernandez, Pep Simó, David Gonzalez-Prieto","doi":"10.2139/ssrn.2401696","DOIUrl":"https://doi.org/10.2139/ssrn.2401696","url":null,"abstract":"In this working paper we make analysis on flight flow network structure of Europe. The aim of this study is to analyze the robustness of the European civil European air transportation network from the perspective of the theory of complex networks. This study is based on analyzing the behavior of the network when its nodes (airports) are removed by random attacks and deliberate attacks. The selection of nodes on deliberate attacks is based on four criteria: degree, betweenness, pagerank and eigenvector. This study aims to contribute to the understanding of the logistics network of European commercial flights, analyzing their strengths and weaknesses. The calculation of network statistical indicators as degree and betweenness distribution reveals that the flight flow network has the small-world characteristics and scale-free property.","PeriodicalId":243859,"journal":{"name":"Logistics eJournal","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134123268","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}