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1.
Vendor Managed Inventory (VMI) involves the vendor making the replenishment decision for products supplied to a customer based on various inventory and supply chain policies. Information sharing between supply chain members is required in VMI. Sometimes VMI decisions are delayed and/or the information shared is inaccurate. This research examines the effects of information delay and accuracy, and the sharing of sales and forecast information in a VMI environment facing stationary and nonstationary demand. The simulation experiments show the impact of information delay, information inaccuracy, and information sharing on a variety of performance measures, including inventory levels and fill rates. 相似文献
2.
This paper proposes two new weighting schemes that average forecasts based on different estimation windows in order to account for possible structural change. The first scheme weights the forecasts according to the values of reversed ordered CUSUM (ROC) test statistics, while the second weighting method simply assigns heavier weights to forecasts that use more recent information. Simulation results show that, when structural breaks are present, forecasts based on the first weighting scheme outperform those based on a procedure that simply uses ROC tests to choose and forecast from a single post-break estimation window. Combination forecasts based on our second weighting scheme outperform equally weighted combination forecasts. An empirical application based on a NAIRU Phillips curve model for the G7 countries illustrates these findings, and also shows that combination forecasts can outperform the random walk forecasting model. 相似文献
3.
David Neave,Susan Neave,Catherine Ferguson,and Elizabeth Parkinson,eds., Yorkshire East Riding Hearth Tax 1672–3 (London: British Record Society, 2016. Pp. xvi+600. 18 maps. 30 plates. 10 tables. ISBN 9780901505613 Hbk. £30 + £5 p&p [UK], £10 p&p [overseas])
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Heather Falvey 《The Economic history review》2017,70(3):1017-1018
4.
Heather M. Rozjabek Craig I. Coleman Veronica Ashton François Laliberté Paul Oyefesobi Dominique Lejeune 《Journal of medical economics》2019,22(8):751-759
Objective: To assess long-term healthcare costs related to ischemic stroke and systemic embolism (stroke/SE) and major bleeding (MB) events in patients with non-valvular atrial fibrillation (NVAF) treated with non-vitamin K antagonist oral anticoagulants (NOACs).Materials and methods: Optum’s Clinformatics Data Mart database from 1/2009–12/2016 was analyzed. Adult patients with ≥1 stroke/SE hospitalization (index date) were matched 1:1 to patients without stroke/SE (random index date), based on propensity scores. Patients with an MB event were matched to patients without MB. All patients had an NOAC dispensing overlapping index date, ≥12?months of eligibility pre-index date, and ≥1 NVAF diagnosis. The observation period spanned from the index date until the earliest date of death, switch to warfarin, end of insurance coverage, or end of data availability. Mean costs were evaluated: (1) per-patient-per-year (PPPY) and (2) at 1, 2, 3, and 4?years using Lin's method.Results: The cost differences were, respectively, $48,807 and $28,298 PPPY for NOAC users with stroke/SE (n?=?1,340) and those with MB (n?=?3,774) events compared to controls. Cost differences of patients with vs without stroke/SE were $49,876, $51,627, $57,822, and $60,691 at 1, 2, 3, and 4?years post-index, respectively (p?0.001). These cost differences were $31,292, $35,658, $44,069, and $47,022 for patients with vs without MB after 1, 2, 3, and 4?years post-index, respectively (p?0.001).Limitations: Limitations include unobserved confounders, coding and/or billing inaccuracies, limited sample sizes over longer follow-up, and the under-reporting of mortality for deaths occurring after 2011.Conclusions: The incremental healthcare costs incurred by patients with vs without stroke/SE was nearly twice as high as those of patients with vs without MB. Moreover, each additional year up to 4?years after the first event was associated with an incremental cost for patients with a stroke/SE or MB event compared to those without an event. 相似文献
5.
ABSTRACT International retirement migration (IRM) is a growing phenomenon linked to increased longevity, early retirement, and improved financial status. Encompassing both travel and leisure experiences, IRM is a topic relevant to both tourism and leisure studies. By analysing the fictional movie series The Best Exotic Marigold Hotel (2012) and The Second Best Marigold Hotel (2015) from psychological, gerontological, and sociological theoretical perspectives, this paper examines motivation, goal setting, continuity and change, and identity development in IRM experiences within tourism and leisure contexts. This paper (a) identified motivations for IRM as finance, romantic relationships, social relations, self-esteem, self-fulfilment, and social norms; (b) in turn, time perception and attitude influence IRM emigrants’ priority and emotional fulfilment; (c) innovation extricates IRM emigrants from role loss and facilitates role change; and (d) IRM emigrants experience various identity development processes. A conceptual framework for IRM is proposed that purports to explain the IRM experience process and indicates that such an understanding of IRM should incorporate psychological, gerontological, and sociological perspectives. 相似文献
6.
Mark Zeitoun Heather Elaydi Jean‐Philippe Dross Michael Talhami Evaristo de Pinho‐Oliveira Javier Cordoba 《International journal of urban and regional research》2017,41(6):904-925
This article assesses the impact of armed conflict on the drinking water service of Basrah from 1978 to 2013 through an ‘urban warfare ecology’ lens in order to draw out the implications for relief programming and relevance to urban studies. It interprets an extensive range of unpublished literature through a frame that incorporates the accumulation of direct and indirect impacts upon the hardware, consumables and people upon which urban services rely. The analysis attributes a step‐wise decline in service quality to the lack of water treatment chemicals, lack of spare parts, and, primarily, an extended ‘brain‐drain’ of qualified water service staff. The service is found to have been vulnerable to dependence upon foreign parts and people, ‘vicious cycles’ of impact, and the politics of aid and of reconstruction. It follows that practitioners and donors eschew ideas of relief–rehabilitation–development (RRD) for an appreciation of the needs particular to complex urban warfare biospheres, where armed conflict and sanctions permeate all aspects of service provision through altered biological and social processes. The urban warfare ecology lens is found to be a useful complement to ‘infrastructural warfare’ research, suggesting the study of protracted armed conflict upon all aspects of urban life be both deepened technically and broadened to other cases. 相似文献
7.
Heather Dickey Verity Watson Alexandros Zangelidis 《Scottish journal of political economy》2011,58(5):607-633
The North Sea oil and gas industry currently faces recruitment and retention difficulties because of a shortage of skilled workers. One means of retaining existing employees is to improve workers’ job satisfaction. In this paper, we investigate the determinants of job satisfaction and intentions to quit within this industry sector. We find that individuals in good financial situations, those whose skills are closely related to their job and those who received training reported higher levels of job satisfaction. Furthermore, we establish the importance of job satisfaction, promotion prospects and training opportunities in determining workers’ intentions to quit their job. 相似文献
8.
Nicola Christie Richard Kimberlee Elizabeth Towner Sarah Rodgers Heather Ward Judith Sleney Ronan Lyons 《Journal of Transport Geography》2011,19(4):943-949
The aim of this paper is to take a holistic perspective to explore levels of cycling and opportunities and barriers to increase children’s safer cycling in disadvantaged areas in England. The study was one part of a larger study which explored the factors underlying the high level of road traffic casualties especially among children in the most disadvantaged areas of England and to explore how this impacts on mobility and quality of life. The methods involved a cross sectional survey comprising school based questionnaire surveys with children aged 9-14 and focus groups with parents who had children within this age range. The surveys were conducted in 2007 and the focus groups during 2008. 4286 children completed the survey and eight focus groups were held. Bike ownership (77%) was high, use in previous week moderate (39%) but only 2% cycled to school. Ownership was significantly lower in minority ethnic groups. Despite young children’s strong preference to travel by cycle (30%) than walk or go by car, most parents felt it was too hazardous. It is unlikely that these findings would be any different from the rest of England, however the combination of environmental and social factors may elevate the risks for young cyclists in these areas. This paper concludes that a number of barriers exist to increasing levels of cycling among children living in disadvantaged areas particularly amongst ethnic groups. These barriers could be addressed by environmental modifications to reduce speeds and by reducing the levels of antisocial driving and riding in residential areas and around destinations where children travel, by providing cycle training to improve children’s skills and parent’s confidence, and by providing secure storage facilities for bikes. Until these barriers are addressed it is unlikely that cycling will increase despite the strong preferences children have to travel by bike. Such preferences to cycle provide an opportunity for local authorities to act on. 相似文献
9.
This paper estimates the magnitude of the Balassa-Samuelson effect for Greece. We calculate the effect directly, using sectoral
national accounts data, which permits estimation of total factor productivity (TFP) growth in the tradeables and nontradeables
sectors. Our results suggest that it is difficult to produce one estimate of the BS effect. Any particular estimate is contingent
on the definition of the tradeables sector and the assumptions made about labour shares. Moreover, there is also evidence
that the effect has been declining through time as Greek standards of living have caught up on those in the rest of the world
and as the non-tradeables sector within Greece catches up with the tradeables.
相似文献
Jim MalleyEmail: |
10.