TransportRN: Freight Transportation & Value Chains (Topic)最新文献

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Industrial Production Dynamics in Q1 2019: Manufacturing Sector on the Rise 2019年第一季度工业生产动态:制造业正在崛起
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2019-06-17 DOI: 10.2139/ssrn.3405535
A. Kaukin, E. Miller
{"title":"Industrial Production Dynamics in Q1 2019: Manufacturing Sector on the Rise","authors":"A. Kaukin, E. Miller","doi":"10.2139/ssrn.3405535","DOIUrl":"https://doi.org/10.2139/ssrn.3405535","url":null,"abstract":"Russia’s manufacturing sector was stagnant in late 2018; both state-supported industries and industries that profited from a positive global trend were on the rise. Data for early 2019 show growth in most of the manufacturing industries. Barring some industries (e.g., food and chemical industries and metallurgy), this was not exactly in line with previous trends, the dynamics of fundamental factors, the downturn in the wholesale and retail trade and stagnating freight turnover and construction sectors.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128580332","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
Spatial Inefficiencies in Africa's Trade Network 非洲贸易网络的空间效率低下
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2019-06-01 DOI: 10.3386/W25951
Tilman Graff
{"title":"Spatial Inefficiencies in Africa's Trade Network","authors":"Tilman Graff","doi":"10.3386/W25951","DOIUrl":"https://doi.org/10.3386/W25951","url":null,"abstract":"I assess the efficiency of transport networks for every country in Africa. Using rich spatial data, I simulate trade flows over more than 70,000 links covering the entire continent. I maximise over the space of networks and find the optimal road system for every African state. My simulations predict that Africa would gain 1.1% of total welfare from better organising its national road systems. I then construct a novel dataset of local network inefficiency and I find that colonial infrastructure projects significantly skew trade networks towards a sub-optimal equilibrium. I also find evidence for regional favouritism and inefficient aid provision.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126074321","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: 9
Построение модели межрегиональных внутрироссийских товарных потоков на основе грузоперевозок железнодорожным транспортом (Building a Model of Inter-Regional Russian Trade Flows Based on Rail Freight)
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2019-05-22 DOI: 10.2139/ssrn.3392423
A. Kaukin, Aleksandr Tomaev
{"title":"Построение модели межрегиональных внутрироссийских товарных потоков на основе грузоперевозок железнодорожным транспортом (Building a Model of Inter-Regional Russian Trade Flows Based on Rail Freight)","authors":"A. Kaukin, Aleksandr Tomaev","doi":"10.2139/ssrn.3392423","DOIUrl":"https://doi.org/10.2139/ssrn.3392423","url":null,"abstract":"<b>Russian Abstract:</b> Основной целью данной работы является выявление факторов, объясняющих маршрутизацию и интенсивность внутрироссийских товарных потоков на основе данных о перевозках грузов железнодорожным транспортом. Применяя гравитационную модель и опираясь на информацию по межрегиональным грузовым перевозкам, включающим отправления в период с 2012 по 2016 год включительно, мы оцениваем степень влияния на объемы торговли различных переменных.<br><br><b>English Abstract:</b> The main objective of this study is to identify factors affecting the routing and intensity of Russian rail trade flows. Using the gravity model and relying on the information on interregional freight traffic during the period from 2012 to 2016, we estimate the degree of influence of certain variables on the volume of trade.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127606461","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
Анализ Влияния Реформирования Таможенного Дела На Загрузку Пунктов Пропуска Государственной Границы в России (Analysis of the Impact of Reforming the Customs Business on Loading State Border Check Points in Russia) 海关业务改革对俄罗斯装载国境检查站的影响分析(海关业务改革对俄罗斯装载国境检查站的影响分析)
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2018-03-29 DOI: 10.2139/ssrn.3152312
Dmitry Gordeev
{"title":"Анализ Влияния Реформирования Таможенного Дела На Загрузку Пунктов Пропуска Государственной Границы в России (Analysis of the Impact of Reforming the Customs Business on Loading State Border Check Points in Russia)","authors":"Dmitry Gordeev","doi":"10.2139/ssrn.3152312","DOIUrl":"https://doi.org/10.2139/ssrn.3152312","url":null,"abstract":"As a result of 2014, Russia's foreign trade turnover amounted to about 820 million tons and 700 billion US dollars. In 2015, the figures fell significantly and amounted to 750 million tons and 404 billion US dollars. In 2016 cargo traffic in physical terms increased to 767 million tons, but decreased in value to 363 billion US dollars. The key drivers of the changes for the period from 2014 to 2016 were the following: the imposition of mutual sanctions between the Russian Federation and foreign states, the unstable political situation in Ukraine and the trade blockade on the part of Ukraine. As a result, there was a redistribution of cargo flows between the points of admission on the border of the Russian Federation. In addition, the redistribution of freight flows is influenced by barriers related to the customs administration system, which are faced by companies engaged in foreign economic activities. The purpose of this work is to build a methodology and conduct a quantitative assessment of the impact of customs reform in Russia on the loading of checkpoints, including analysis of the product and geographical aspects. The results of the assessment will allow to build priorities for the arrangement of existing checkpoints on the basis of gravitation to them from the side of freight carriers.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134189696","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
Complementary Alliances with Endogenous Fleets and Load Factors 具有内生机队和载客率的互补联盟
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2016-01-03 DOI: 10.2139/ssrn.2705454
Achim I. Czerny, Vincent A.C. van den Berg, E. Verhoef
{"title":"Complementary Alliances with Endogenous Fleets and Load Factors","authors":"Achim I. Czerny, Vincent A.C. van den Berg, E. Verhoef","doi":"10.2139/ssrn.2705454","DOIUrl":"https://doi.org/10.2139/ssrn.2705454","url":null,"abstract":"This paper analyzes the effect of carrier collaboration on fleet capacity, fleet structures in terms of the number and the size of vehicles, and load factors. The model features complementary networks, scheduling, price elastic demands, and demand uncertainty. For the case of a given number of vehicles, the analysis shows that carrier collaboration increases vehicle sizes (thus, fleet capacity) if marginal seat costs are low while fleet capacity remains unchanged if marginal seat costs are high. If both vehicle sizes and vehicle numbers can be varied, then collaboration will always increase vehicle numbers and fleet capacity, while the effects on vehicle sizes and, thus, also load factors, are ambiguous and therewith hard to predict. Numerical simulations indicate that collaboration increases expected load factors also when the number of vehicles is endogenous.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127957694","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: 1
A Classical Partial Disequilibrium Model of the Gas Shipping Markets 天然气运输市场的经典部分不均衡模型
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2012-02-23 DOI: 10.2139/ssrn.2009842
S. Engelen, W. Dullaert
{"title":"A Classical Partial Disequilibrium Model of the Gas Shipping Markets","authors":"S. Engelen, W. Dullaert","doi":"10.2139/ssrn.2009842","DOIUrl":"https://doi.org/10.2139/ssrn.2009842","url":null,"abstract":"In this paper we present a classical shipping model of the LPG, the ammonia and the petrochemical freight market that has recently been developed for use in industry practice. The aim is on the one hand to fill the gap of modeling the gas markets which to date have basically been ignored in the maritime literature. By innovating demand and productivity, as well as proposing supply with straightforward entry and exit on the other, we overcome the need of a flexible framework that in turn is applicable on modeling other shipping markets. Although this cumbersome exercise requires a considerable amount of information, the benefit of a model based on economic theory is that one can directly test the assumption of market equilibrium at the same time that it could effectively be used by the industry. By so doing, we confirm the positive albeit diffused relation between market utilization levels and freight rates, expounding that market information is instantaneously reflected in prices. A forecasting application of the model and a sensitivity example on some key variables conclude the analysis.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115569390","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
Ordering Strategies for Short Product Life Cycle Made-to-Stock Products 短产品生命周期定制产品的订购策略
TransportRN: Freight Transportation & Value Chains (Topic) Pub Date : 2009-02-25 DOI: 10.2139/ssrn.2140679
Janat Shah, R. Patil, Balram Avittatur
{"title":"Ordering Strategies for Short Product Life Cycle Made-to-Stock Products","authors":"Janat Shah, R. Patil, Balram Avittatur","doi":"10.2139/ssrn.2140679","DOIUrl":"https://doi.org/10.2139/ssrn.2140679","url":null,"abstract":"To take advantage of economies of scale, vendors and transporters often use quantity discounts to influence the firms to order in larger quantities. Also, as the firms use delivery windows to procure and transport short life cycle products, it becomes important to simultaneously decide the best possible procurement and transportation plan over the product life cycle. Similarly, there is growing recognition amongst both practitioners and researchers to decide the end of the season markdowns by studying the sales pattern. In this paper, we propose a stochastic programming with recourse formulation to study this problem with the objective of maximizing the retailer's expected product life cycle profit keeping the initial business promised, subsequent lifecycle replenishment orders, transportation batch sizes and markdowns as recourse variables. We propose a solution procedure that efficiently solves this stochastic nonlinear problem. Our computational experiments suggest that it is always not necessary to select the most complex action plan. Under some business environments, the conventional strategy of placing and transporting a single large order is a better option. We then identity situations where decisions such as markdowns and use of quick response suppliers can be useful.","PeriodicalId":301975,"journal":{"name":"TransportRN: Freight Transportation & Value Chains (Topic)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129834346","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
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