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排序方式: 共有268条查询结果,搜索用时 31 毫秒
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Jason W. Miller Matthew A. Schwieterman Yemisi A. Bolumole 《Journal of Business Logistics》2018,39(2):138-156
Motor carrier safety remains a highly relevant issue for supply chain managers and scholars because carriers’ safety affects supply chains as well as the welfare of the motoring public. This article enriches understanding regarding this topic by investigating how motor carriers’ growth or contraction since the start of the Compliance, Safety, and Accountability (CSA) program in 2010 affects their safety performance. Drawing on core principles from theories regarding internal adjustment costs from economics and nonscale free capabilities from management, we explain why carriers’ growth or contraction should differentially affect various safety metrics tracked by the CSA program. To test our theory, we assemble a multiyear panel data set for over 1,000 of the largest for‐hire motor carriers operating in the United States by melding together several different governmental data sources. We fit a series of multivariate seemingly unrelated regression models to test our hypothesized effects. Our results corroborate our theorized predictions and are robust to alternative model specifications. We conclude by detailing how this work contributes to extant theory, summarizing managerial and policy implications, highlighting limitations, and suggesting directions for further pursuit. 相似文献
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本文针对422成型机的进口主轴直流拖动系统出现的问题:进口碳刷压簧严重变形造成碳刷与换向器接触不良、负载大时频繁出现电火花造成换向器灼伤或磨损严重,直流调速器内频繁报警、电动机功率不足、电动机轴承位置磨损严重,进口备件维修费用高、难购置且维护不方便等,造成大型工程轮胎成型机生产过程因此类设备故障而时常抢修。阐述了对主轴直流电动机及其直流调速系统进行国产化改造的原因、技术改进的主要内容和实施效果等,有助于提高422成型机的产质量。 相似文献
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How Does Driver Turnover Affect Motor Carrier Safety Performance and What Can Managers Do About It? 下载免费PDF全文
《Journal of Business Logistics》2017,38(3):197-216
The trucking industry is the lifeblood of supply chains. Truck driver turnover and motor carrier safety are two salient issues affecting this industry. While turnover by itself presents a challenge due to the cost of replacing drivers, it takes on additional urgency because turnover may affect motor carrier safety. However, driver turnover research has focused predominantly on identifying factors affecting turnover, thus resulting in limited understanding of how turnover affects motor carrier performance, particularly with regard to safety. This reduces our ability to provide guidance to managers who have to address driver turnover. In this article, we extend prior research by drawing from several theoretical lenses to develop and test theory of the turnover–safety relationship. Furthermore, we investigate whether carrier managers can mitigate the effect of turnover on safety by embedding knowledge in carriers’ routines using activity control, a formal management control mechanism. We employ a longitudinal data set composed of primary and secondary data sources to test our hypotheses. We find the turnover–safety relationship is best characterized by a monotonic negative attenuated pattern and that high levels of activity control mitigate the negative effect of driver turnover on motor carrier safety in domains more under drivers’ control. 相似文献
66.
《Journal of Business Logistics》2017,38(4):266-289
Motor carriers’ operational safety affects multiple stakeholders including truck drivers, motor carriers, insurance companies, shippers, and the general public. In this article, I devise and test theory regarding motor carriers’ longitudinal performance for three classes of safety behaviors linked to carriers’ accident rates—Unsafe Driving, Hours‐of‐Service Compliance, and Vehicle Maintenance—tracked by the Federal Motor Carrier Safety Administration as part of the Compliance, Safety, and Accountability (CSA) program. Specifically, I draw on core concepts from sociological agency theory and resource dependency theory to devise middle‐range theory that generates never‐before‐tested hypotheses regarding carriers’ longitudinal safety performance for these classes of safety behaviors after the start of the CSA program. The hypothesized predictions are tested by fitting a series of multivariate latent curve models to four years of panel data for a random sample of 484 large, for‐hire motor carriers operating in the United States. The empirical findings corroborate the theoretical predictions and remain after robustness testing. These findings have important implications for scholars, motor carrier managers, procurers of motor carrier transportation services, and public policy makers. 相似文献
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物流采购管理沟通生产需求与物资供应,是供应链的重点内容,因此文章首先分析采购在物流系统中的作用,然后结合宁德电机产业集群的现状剖析宁德电机企业的物流采购问题,最后从物流采购流程视角提出几点对策。 相似文献
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2009年,我国首次成为世界汽车产销第一大国,机动车尾气排放造成的污染日益严重,已成为我国大中城市空气污染的主要来源。文章介绍了机动车尾气污染的危害,并提出了针对性的控制措施。 相似文献
70.
交强险倍受争议的所谓“无责赔付”原则,其依据是《道路交通安全法》第76条。道交法第76条规定在强制保险限额内不问侵权责避免任归属而径由保险埋单,属逻辑颠倒,片面强调交强险的社会救济功能,摒弃责任保险的基本逻辑,实为交强险诸多问题的根源。《侵权责任法》对此未有实质改进,失去立法矫正机会。实践中无辜受害车辆反而多赔肇事车辆... 相似文献