共查询到20条相似文献,搜索用时 15 毫秒
1.
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
2.
Cross-buying in retailing: Drivers and consequences 总被引:3,自引:0,他引:3
The phenomenon of cross-buying by consumers enables retailers to cross-sell their products and increase revenue contribution from existing customers. The effectiveness of cross-selling can be greatly improved by identifying the drivers of cross-buy and using them to target the right customers. In this study we identify exchange characteristics such as average interpurchase time, ratio of product returns, and focused buying, and product characteristics such as category of first purchase, as important drivers of cross-buy. The impact of marketing efforts of the firm on cross-buy is also identified. The results of the study have important implications for academicians in understanding what drives cross-buying as well as practitioners to help design more effective cross-selling strategies. 相似文献
3.
Understanding how motor carriers' size affects their productivity (e.g., miles per power unit) is of fundamental importance to carrier managers, shippers, and investors, because the nature of this relationship should influence carriers' strategies with regard to growth. In the truckload (TL) sector, the prevailing assumption is that TL carriers face constant returns to scale such that productivity differs little between large and small carriers. While empirical findings from several studies conducted since deregulation are consistent with this assumption, we contend that the true relationship between carrier size and productivity is more nuanced and is contingent on carriers' level of technical efficiency. Specifically, we develop and test middle range theory that predicts increasing returns to scale for carriers with low technical efficiency, constant returns to scale for carriers with average technical efficiency, and decreasing returns to scale for carriers with high technical efficiency. We test our theory by estimating production functions using quantile regression for data collected from the U.S. Department of Transportation for 1,068 TL carriers. Results from our analyses corroborate our predictions. Our findings hold valuable implications for the logistics literature as well as TL carrier management, shippers, and other industry stakeholders. 相似文献
4.
ABSTRACTThe paper employs the multipurpose nature of mobile telephony to investigate its welfare implications using a large sample of households in Ghana. We use seemingly unrelated probit and instrumental variable procedure to test for two related issues: First, we investigate whether mobile telephony promotes pro-poor development by helping households to efficiently allocate consumption and navigate out of poverty. Second, we analyze whether access to a broad array of financial services enhances the capacity of households to live worthwhile lives. The results show that mobile penetration and financial inclusion significantly reduce the probability of a household becoming poor and increase per capita household consumption of food and non-food items. Our results show that the welfare benefits of mobile telephony and financial inclusion are not more pronounced in female-headed households. These insights serve as useful guide for government and other stakeholders who are looking for avenues to improve livelihoods. 相似文献
5.
《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
6.
Explaining how individuals form their risks and benefit perceptions with regard to new technologies is a key issue in order to understand how new information disseminates. This paper examines the effect of knowledge, social values and trust in experts as shaping perceptions of risks and benefits of new technologies. Given that individual's perceptions of a technology is affected by unobserved heterogeneity, we use a methodology to disentangle the effect of a joint estimation of risks and benefit perceptions, namely seemingly unrelated probit, and we draw upon evidence from a representative survey carried out in Spain. Our findings suggest that factual knowledge and trust in experts increase perceptions of benefit of new technology developments and jointly reduce the perceptions of risk. Furthermore, reliance on traditional social values only appears to affect perceptions of benefits but does not influence risk perceptions. 相似文献
7.
Jason W. Miller Yemisi Bolumole Matthew A. Schwieterman 《Journal of Business Logistics》2020,41(1):67-85
With few exceptions, motor carriers operating in the United States were required to install electronic logging devices (ELDs) as of December 18, 2017. Noncompliance exposed carriers to risk of fines from enforcement agencies. This research examines compliance behaviors of small and medium size carriers in the four months leading up to the ELD mandate, focusing on the effects of carriers’ size and geographic range of operation (e.g., regional vs. national). Drawing on sociological agency theory, new institutional theory, and theory regarding regulatory compliance, we explain why (1) carriers’ size displays a nonlinear relationship with ELD compliance, (2) the positive effect of carrier size on ELD compliance diminishes as the enforcement deadline approached, (3) carriers with operations covering wider geographic areas have higher rates of compliance, and (4) the effect of wider geographic range of operations on compliance will become more pronounced as the enforcement deadline approached. We test our theory using ELD compliance data collected by an industry data vendor, CarrierLists, from September 2017 through December 2017 from 3,910 motor carriers. Results from a series of discrete choice logistic regression models corroborate our predictions. These results have important implications for carriers, shippers, and regulators. 相似文献
8.
Jenet I. Jacob Sarah Allen E. Jeffrey Hill Nicole L. Mead Maria Ferris 《Family and consumer sciences research journal / American Association of Family and Consumer Sciences》2008,36(4):310-327
Using a sample of U.S. IBM employees who are parents (N = 1,580), the authors evaluated whether work interference with dinnertime mediates and moderates the relationship between work hours and work, personal, and family outcomes. The negative relationships between work hours and success in personal life, relationships with spouse/partner and children, and the perception of an emotionally healthy workplace were mediated by work interference with dinnertime. The positive relationship between work hours and work—family conflict was partially mediated. Testing for interactions revealed evidence of the moderating effect of dinnertime and gender. These findings provide strong support for the potential role of dinnertime in reducing the negative work, personal, and family outcomes associated with long work hours and conflict in the work—family interface. 相似文献
9.
Developing an understanding of the longitudinal relationships between different measures of motor carrier safety is important to advance theory and practice regarding this significant supply chain management and public policy issue. In this article, we combine core principles from several theoretical traditions to propose a dynamic theory of motor carrier safety that specifies the longitudinal relationships between three core measures of safety publically reported by the Federal Motor Carrier Safety Administration: unsafe driving, hour‐of‐service compliance, and vehicle maintenance. We test this theory using four years of longitudinal data on motor carrier safety for a random sample of large, for‐hire motor carriers. Results from fitting a vector multivariate autoregressive moving average time‐series model are largely consistent with the theory we propose. We describe the implications of our research for supply chain management theory and practice, summarize limitations, and suggest directions for future research. 相似文献
10.
《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
11.
Jason W. Miller William A. Muir Yemisi Bolumole Stanley E. Griffis 《Journal of Business Logistics》2020,41(4):294-309
High rates of truck driver turnover have long plagued the full truckload (TL) sector. While greater driver turnover raises TL carriers’ costs, no research has examined how changes in industry-wide TL driver turnover rates affect industry-wide prices shippers pay for TL transportation. Drawing on economic theory regarding firms’ asymmetric adjustment of prices in response to changing costs, we explain why increases in driver turnover are expected to increase the prices carriers charge for their services, whereas decreases in driver turnover are expected to have limited effect on the prices carriers charge for their services. We further explain why the positive impact of increases in industry-wide TL driver turnover rates on prices will be more pronounced when industry employment is rising more rapidly. To test our theory, we assemble a time series data set combining proprietary driver turnover data with publicly available data regarding TL pricing, trucking employment, diesel prices, and aggregate industry activity. Results from fitting a set of time series econometric models corroborate our theorized predictions. We explain the implications of these findings for theory and practice. 相似文献
12.
William A. Muir Jason W. Miller Stanley E. Griffis Yemisi A. Bolumole Matthew A. Schwieterman 《Journal of Business Logistics》2019,40(3):204-228
Two questions facing motor carrier managers are (1) whether carriers should specialize in providing full truckload (TL) or less‐than‐truckload (LTL) services vis‐à‐vis offering mix of both and (2) whether this decision is contingent on carrier size. Yet, the literature provides little guidance because research to date has offered contradictory theoretical predictions and inconsistent empirical findings. Drawing on the theory of strategic purity and information processing theory, we explain why service specialization is likely to increase carriers' technical efficiency and why size will have a more pronounced effect on technical efficiency for carriers specializing in LTL services versus TL services. To test our theory, we assemble a panel data set from archival government sources regarding general freight motor carriers' provision of LTL and TL services. We measure carriers' technical efficiency using data envelopment analysis and test our hypotheses by fitting a series of panel data mixed‐effects models. Our results indicate that carriers are most technically efficient when they specialize in one service type. We also find that size positively affects technical efficiency but only for carriers specializing in LTL services; no returns to scale with regard to technical efficiency exist for carriers specializing in TL services. 相似文献
13.
Francisco Tercero Ragnar Andersson Julio Rocha Néstor Castro Leif Svanström 《International journal of injury control and safety promotion》2013,20(1):33-42
Background Regularly available data has been shown to be inadequate for developing, implementing, and evaluating injury prevention and control programs in Nicaragua. A specific prevention-oriented local injury surveillance system has therefore been set up in the city of León. Objectives The aim of this paper is to describe the epidemiology of fatal and non-fatal injuries over a one-year period in a well-defined local population in Nicaragua, as emerging from the perspective of emergency room and inpatient treatments over a one-year period. Methods A hospital-based injury surveillance system was established to collect data for different levels of severity. All treated unintentional and intentional injuries were registered, including information on the external causes according to the ICD-9. Results Of all emergency room visits, 15.9% (9,970) were injuries. For every death due to injuries, there were 31 hospital admissions and 253 emergency room visits. Home and street/roads were the main arenas for the accidents. The estimated underreporting rate was about 6%, and in 20.3% of the cases, no E-code was assigned. The overall incidence and mortality rates were 56.2 per 1,000 and 20 per 100,000 inhabitants, respectively. However, comparison with a parallel household survey showed that the reporting rate of the surveillance system is only about 9%. The overall ratio of male to female injury rates was 2.1 to 1. The main causes of non-fatal injuries were falls, whereas the main cause of death was traffic accidents. Conclusions Hospital discharge and emergency room data systems are effective and feasible means for collecting the data needed to prevent injuries. However, in a country like Nicaragua with limited access to hospital health services, it is necessary to supplement such a system with additional sources of information in order to gain a more comprehensive picture of injury occurrence. 相似文献
14.
To achieve economies of scope, most motor carriers combine long-term contracts with shippers and brokers with periodic spot assignments found on electronic marketplaces (EMs). While previous research has addressed how carriers adopt an EM, we know little about factors that influence carriers to adopt multiple EMs. Given the rise of the platform economy of the trucking industry, we chose to address this gap and generate mid-range theory on adopting multiple EMs in a logistics context. To do this, we applied grounded theory and conducted 23 interviews with motor carriers and EM experts in North America and Europe until we reached theoretical saturation. Our findings reveal that many motor carriers adopt a portfolio of different EMs, and that their awareness of platforms, expected and realized benefits, attitude, and vigilance determine how they configure their EM portfolios. The implication for existing theory is that, while previous studies depicted EM adoption from a single-system perspective, we found that it is actually a continuous selection process that follows a portfolio perspective. Our paper also has implications for practice in that it illuminates the rationales behind EM portfolio development and identifies actionable factors that can help managers configure stronger portfolios. 相似文献
15.
《International journal of injury control and safety promotion》2013,20(4):433-438
ABSTRACTIn this study, we analyse the impact of the organizational culture and introduce a new variable, the integration of safety, which relates to the modalities for the implementation and adoption of safety in the work process, either through the activity or by the operator. One hundred and eighty employees replied to a questionnaire measuring the organizational climate, the safety climate and the integration of safety. We expected that implementation centred on the activity or on the operator would mediate the relationship between the organizational culture and the safety climate. The results support our assumptions. A regression analysis highlights the positive impact on the safety climate of organizational values of the ‘rule’ and ‘support’ type, as well as of integration by the operator and activity. Moreover, integration mediates the relation between these variables. The results suggest to take into account organizational culture and to introduce different implementation modalities to improve the safety climate. 相似文献
16.
Motor vehicle crashes are a leading cause of death for youth. Appropriate occupant protection significantly reduces these preventable injuries. Secondary field observation survey records were studied to identify populations that would most likely benefit from youth occupant protection programs. Multivariate regression analysis showed that drivers of youth between 4 and 14 years were in need of programs promoting youth and driver occupant restraint use. When these drivers were using seat belts, it was 35 times more likely they had youth occupants in safety restraints. A focus on pickup truck drivers may also give these programs greater efficacy in increasing youth restraint use. This study was limited to a single state, but the approach should be transferable to other jurisdictions where youth occupant protection field observation studies are conducted. 相似文献
17.
Niaz Mahmud Zafri Ahmed Aflan Prithul Ivee Baral Moshiur Rahman 《International journal of injury control and safety promotion》2020,27(3):300-307
Abstract Although the rate of road crashes and their severity is relatively higher in developing countries, there is still a lack of research on pedestrian-vehicle crash severity in these contexts, particularly in Bangladesh. Therefore, this study aimed to identify the contributing environmental, road, and vehicular factors that influenced pedestrian—single-vehicle crash severity in Dhaka, a megacity and the capital of Bangladesh. A binary logistic regression model was developed in this study by analyzing a data set of pedestrian—single-vehicle crashes involving casualties in Dhaka from 2010 to 2015. The model identified seven significant factors influencing pedestrian-vehicle crash severity. Significant factors increasing the likelihood of fatal crashes included crashes during adverse weather, dawn/dusk period, night period (where street light was absent), off-peak period, crashes where road divider was unavailable, road geometry was straight and flat, and crashes those were occurred by heavier vehicles. Besides, crashes at three-legged intersections were less likely to be fatal. Both similarities and differences were found among the significant factors influencing pedestrian-vehicle crash severity in Dhaka from the findings of the developed countries. The findings of this study would help transport engineers and planners to design safer roadways for both pedestrians and vehicles. 相似文献
18.
Motor carrier safety impacts the well‐being of the traveling public and the economic well‐being of the shippers who entrust motor carriers with safely transporting freight. Shippers are affected by motor carrier safety due to accidents damaging their cargo and disrupting their customers’ operations. One characteristic frequently theorized to predict motor carrier safety is motor carriers financial performance. However, the literature offers mixed evidence linking motor carrier financial performance to safety. This does not help practitioners or policy makers and necessitates research to resolve these inconsistent findings, which we undertake in this research. We extend previous work by developing a theoretical framework based on strain theory to explain why both absolute (static) financial performance and year‐to‐year change in financial performance should uniquely affect carrier safety. We test our hypotheses by fitting mixed‐effects models to a repeated‐measure, longitudinal database of publically traded motor carrier financial performance and safety measures. Results indicate that financial performance measures uniquely affect carrier safety. These findings attempt to resolve the inconsistencies in the past literature and, carry important implications for researchers studying motor carrier safety, motor carrier managers, shippers, and policy makers. 相似文献
19.
Marjana Čubranić-Dobrodolac Libor Švadlenka Svetlana Čičević 《International journal of injury control and safety promotion》2020,27(2):156-167
AbstractThis research proposes an assessment and decision support model to use when a driver should be examined about their propensity for traffic accidents, based on an estimation of the driver’s psychological traits. The proposed model was tested on a sample of 305 drivers. Each participant completed four psychological tests: the Barratt Impulsiveness Scale (BIS-11), the Aggressive Driving Behaviour Questionnaire (ADBQ), the Manchester Driver Attitude Questionnaire (DAQ) and the Questionnaire for Self-assessment of Driving Ability. In addition, participants completed an extensive demographic and driving survey. Various fuzzy inference systems were tested and each was defined using the well-known Wang-Mendel method for rule-base definition based on empirical data. For this purpose, a programming code was designed and utilized. Based on the obtained results, it was determined which combination of the considered psychological tests provides the best prediction of a driver’s propensity for traffic accidents. The best of the considered fuzzy inference systems might be used as a decision support tool in various situations, such as in recruitment procedures for professional drivers. The validity of the proposed fuzzy approach was confirmed as its implementation provided better results than from statistics, in this case multiple regression analysis. 相似文献
20.
Chengcheng Xu Jie Bao Pan Liu Wei Wang 《International journal of injury control and safety promotion》2018,25(2):141-153
This study aimed to investigate the contributing factors to serious casualty crashes in China. Crashes with deaths greater than 10 people are defined as serious casualty crashes in China. The serious casualty crash data were collected from 2009 to 2014. The random forest analysis was first conducted to select the candidate variables that affect the risks of serious casualty crashes. The Bayesian random parameters accelerated failure time (AFT) model was then developed to link the probability of the serious casualty crash with road geometric conditions, pavement conditions, environmental characteristics, collision characteristics, vehicle conditions, and driver characteristics. The AFT model estimation results indicate that overload driving, country road, northwest china region, turnover crash, private car, snowy or icy road surface and sight distance conditions have significant fixed effects on the likelihood of serious casualty crashes. In addition to these fixed-parameter variables, freeway, clear weather conditions, coach drivers, and upgrade horizontal curve affect the likelihood of serious casualty crashes with varying magnitude across observations. One of the important findings is that the serious casualty crash likelihood does not always decrease with an increase in the driving experience (number of years driven). Before the inflection point of 7 years, the serious casualty crash likelihood increases as the driving experience grows. The results of this study can help to develop effective countermeasures and policy initiatives for the prevention of serious casualty crashes. 相似文献