考虑批量订货的易腐农产品配送中心选址方法

为提高物流管理绩效、降低物流运作成本,考虑到配送中心的批量订货和作业能力限制,建立了易腐农产品配送中心选址问题的0-1整数非线性规划模型,并利用Lingo 9.0软件进行了模型求解.利用该模型可以确定配送中心的位置和各配送中心与零售店之间的配送关系,并可得到配送中心的订货周期和订货批量.最后,通过算例验证了模型的有效性.     

对福州市商超速冻食品配送现状的思考

当今,速冻食品发展越来越迅速,在福州市各个商超占有率很高。但是速冻食品的配送在福州市还存在着诸如冷藏运输车没有做到全程制冷、政府监管力度不够、企业配合不够等很多问题,由此商超速冻食品的质量还无法得到保证,食品的运输效率无法提高。针对此问题,从运输企业、商超、政府等三方面进行思考,从源头出发,寻找解决问题的办法,以期更有效率地进行商超速冻食品的配送,确保食品安全。     

配送中心规划建设研究及实践

给出了配送中心规划的内容、方法和过程,并详细介绍了温州烟草配送中心的规划建设实践,实践表明首先进行科学周密的规划,然后再进行有序高效地建设和细致到位地实施是实现配送中心建设目标的重要保障。     

B2C电子商务配送服务能力评价研究

在深入研究B2C电子商务环境下新型配送特征基础上,构建适用于B2C电子商务环境的配送服务能力评价指标体系,并用层次分析法进行了评价模型的建立,以期为B2C电子商务企业构建物流服务竞争力提供一定参考。     

福建省粮食物流公共信息平台构建研究

粮食作为关系国计民生的重要商品,其流通及安全问题也一直是国内学者研究和讨论的焦点。文中首先分析福建省粮食流通现状并指出其在发展中存在的问题,在此基础上提出福建省粮食物流信息平台的架构设计方案和运营保障设计方案,并以东北大米为例描述设计方案的具体运行流程,力求为福建省粮食流通效率的提高和粮食安全的保障服务。     

Acculturation and Individualism as Predictors of Work‐Family Conflict in a Diverse Workforce

Ethnic and cultural diversity is an increasing reality in the US workplace. The current study highlights the importance of acknowledging the culturally heterogeneous nature of ethnic groups, and the need to focus on social identity characteristics such as cultural values when assessing group differences. We demonstrate that cultural values (i.e., individualism) contribute to employees' experiences of work‐family conflict beyond the effects of ethnicity. Specifically, we introduce a model informed by social identity theory that explains why acculturation is related to work‐family conflict. The model was tested with a sample of 309 employed Caucasian and Hispanic Americans. An empirical test of our model provides evidence that individualism mediates the relationship between language‐ and social‐based acculturation and work‐family conflict, even when controlling for ethnicity. Additionally, alternative models further reveal that the effects of acculturation and individualism contribute to work interfering with family. As an implication of the current study, we suggest that researchers and organizational managers should consider the cultural values of their diverse workforce when implementing policies that affect conflict between work and family. © 2013 Wiley Periodicals, Inc.     

Managing the Intangible Aspects of a Project: The Affect of Vision,Artifacts, and Leader Values on Project Spirit and Success in Technology‐Driven Projects

Successful projects are often characterized by a unique spirit. Phase one results, based on 193 employees partaking in 60 projects across organizations, support a model positing that leader building activities affect employees' emotions, attitudes, and behavioral norms that are focused on expected project outcomes, termed project spirit. Spirit affects employees' contextual performance behavior, which in turn affects success as proposed. Phase two cases, designed to ground these results in technology‐driven project contexts, highlight the value of managing the project's intangible aspects captured by spirit. Quantitative and qualitative findings imply that leaders can be coached to execute behaviors that generate a project's spirit, which boosts contextual performance behavior and increases project success.     

Managing Risks in Complex Projects

Dealing effectively with risks in complex projects is difficult and requires management interventions that go beyond simple analytical approaches. This is one finding of a major field study into risk management practices and business processes of 35 major product developments in 17 high‐technology companies. Almost one‐half of the contingencies that occur are not being detected before they impact project performance. Yet, the risk‐impact model presented in this article shows that risk does not affect all projects equally but depends on the effectiveness of collective managerial actions dealing with specific contingencies. The results of this study discuss why some organizations are more successful in detecting risks early in the project life cycle, and in decoupling risk factors from work processes before they impact project performance. The field data suggest that effective project risk management involves an intricately linked set of variables, related to work process, organizational environment, and people. Some of the best success scenarios point to the critical importance of recognizing and dealing with risks early in their development. This requires broad involvement and collaboration across all segments of the project team and its environment, and sophisticated methods for assessing feasibilities and usability early and frequently during the project life cycle. Specific managerial actions, organizational conditions, and work processes are suggested for fostering a project environment most conducive to effective cross‐functional communication and collaboration among all stakeholders, a condition important to early risk detection and effective risk management in complex project situations.     

ARE ALL ECONOMIC FACTS GREATLY EXAGGERATED? THEORY COMPETITION AND SELECTIVITY

Abstract ..There is growing concern and mounting evidence of selectivity in empirical economics. Most empirical economic literatures have a truncated distribution of results. The aim of this paper is to explore the link between publication selectivity and theory contests. This link is confirmed through the analysis of 87 distinct empirical economics literatures, involving more than three and a half thousand separate empirical studies, using objective measures of both selectivity and contests. Our meta–meta‐analysis shows that publication selection is widespread, but not universal. It distorts scientific inference with potentially adverse effects on policy making, but competition and debate between rival theories reduces this selectivity and thereby improves economic inference.     

Vacaciones y licencias en países desarrollados: los Estados Unidos a la zaga en cuanto a equilibrio entre vida profesional y vida familiar

Los autores comparan las normativas sobre vacaciones y licencias susceptibles de facilitar el equilibrio entre vida profesional y familiar de Australia, Canadá, República de Corea, Estados Unidos, Europa occidental y Japón utilizando un índice compuesto para clasificarlas. Los Estados Unidos figuran en último lugar: la concesión de vacaciones anuales al trabajador no es obligatoria y las licencias por motivos familiares se limitan a 12 semanas al año. Este bajo nivel de reglamentación podría deberse, según los autores, a una concepción mercantilista del empleo sumada a la creencia de que empleador y trabajadores tienen idéntica capacidad de negociación, visión no compartida por las demás democracias industrializadas.