Strategic supply management,quality initiatives,and organizational performance

Researchers in supply chain management have found over the past two decades that supply management should be not merely a purchasing function but a strategic tool for supply chain integration. Supply management, the cornerstone of the integration of industrial supply chains, has evolved as a key research area. Based on quantitative and qualitative investigations of 225 electronics manufacturing firms, we examine the organizational impacts of strategic supply management (SSM) and the contexts of company size, process type, ISO 9000 certification, and quality management (QM) implementation that facilitate such an endeavor. We reveal that SSM is essentially a quality management initiative that requires bilateral efforts for continuous improvement and thus is not associated with the basic requirements of ISO 9000. We find that SSM improves on-time shipments, reduces operational costs, and leads to customer satisfaction and improved business performance. Developed based on contemporary premises in supply chain and QM, this research refines our understanding of the relationships among quality initiatives, SSM, and organizational performance.     

对基于价值无差异的资产定价模型的实证检验——兼解释股权高溢价之谜

陈小悦和孙力强（2007）在价值无差异的基础上建立了一套全新的定价模型,本文采用股票市场的数据对该模型进行了实证检验,模型检验的同时也是对股权溢价之谜进行解释。研究结果表明,本文的定价模型在美国、中国内地和中国香港三个市场的检验都取得了良好的效果,即市场风险溢价均值都向模型的理论值收敛,实际风险溢价与理论值差异很小且不显著,采用该模型可以准确地描述股票市场组合收益率与风险的关系,并对股权溢价之谜做出合理的解释。     

中国外汇储备适度规模实证分析

近年来,我国外汇储备的快速增长引发了理论界关于当前外汇储备规模是否适度的广泛讨论。本文在外汇储备适度规模研究现状的基础上,从需求角度出发,采用1985～2006年的年度数据,运用多种统计方法对影响外汇储备的因素进行分析,测算出外汇储备的适度规模,并解释外汇储备的失调情况,最后提出了优化外汇储备规模和结构的相关建议。     

江浙沪二省一市银行结算账户及资金往来分析

江浙沪两省一市作为地域相连、文化相近、结构互补的较为完整的城市经济区域,是我国经济发展的重心区,并将继续对我国未来的经济发展产生越来越大的影响。本文试图通过采用人民币银行结算账户管理系统及支付管理信息数据,对江浙沪二省一市银行结算账户流入流出、单位存款人的行业归属及资金往来情况进行实证比较分析,来提出推动长江三角洲地区金融一体化的决策依据。     

对中国股票市场费雪效应及相关“波动性假说”的检验

本文利用我国1991年1月到2007年12月的月度数据对我国股票市场实际通货膨胀与股票收益的关系进行了实证分析,结果发现:与费雪效应相反,我国通货膨胀率与股票收益呈负相关关系,而且在对解释这种负相关关系的波动性假说(the Variability Hypothesis)的检验中,发现该假说能够解释我国股市股票收益与通货膨胀之间所呈现的这种负相关关系。     

两阶段视角下高技术产业技术创新能力比较研究

运用SPSS软件,对我国高技术产业在技术研发阶段和技术成果转化阶段的技术创新能力进行了实证研究。结果发现,两阶段高技术产业创新能力高低趋势基本一致。其中,通信设备制造业在两阶段技术创新能力均最高,而办公设备制造业、雷达及配套设备制造业、航天器制造业在两阶段的技术创新能力均最低。提高高技术产业技术创新能力,在技术研发阶段应加大创新投入,提高产业创新产出,从而保证技术成果转化阶段研发成果供给。另外,还应加强技术成果转化阶段的经费投入和创新环境建设。     

Fleet management policies for humanitarian organizations: Beyond the utilization–residual value trade-off

Four-wheel drive vehicles play a pivotal role in securing the last-mile distribution of goods and services in humanitarian development programs. To optimize the use of their fleets, humanitarian organizations recommend policies aimed at enhancing the utilization of vehicles while preserving residual value. Although these decisions have a significant impact on cost, there is limited empirical evidence to show that the recommended policies are actually implemented and that they produce the expected benefits. This paper theoretically and empirically examines the complex and inter-related effects of vehicle-to-mission allocation decisions and of alternative vehicle usage patterns on vehicle utilization and residual value in humanitarian development programs. The results suggest that humanitarian organizations could break the utilization–residual value trade-off by adopting different policies than the ones currently in place. They also reveal that organizations need to realize that what seems logical from the headquarters' perspective may be illogical or inconvenient for the field, and as a result, the field may do the opposite of what is recommended or even instructed. Therefore, they either need better data and analysis combined with audits or they need to improve mechanisms that incentivize field delegations to follow standards recommended by the headquarters.     

Supply-and-demand models for exploring relationships between smaller airports and neighboring hub airports in the U.S.

Airport passenger leakage is the phenomenon of air passengers choosing to travel longer distances to access more extensive air services offered by airlines at an out-of-region hub (or, substitute) airport, instead of using their local airports. Airport leakage can cause further reduction in services offered by airlines at a local airport, thereby causing even further leakage, and so on, which can significantly impact an airport's role in the growth of the local economy. This paper explores the geographic and operational attributes of local-and-substitute airport pairs in the United States, explicitly accounting for the interactive feedback relationship between passenger volumes and air service characteristics that contribute to the onset, persistence, and exacerbation of airport passenger leakage. A two-stage least squares regression model of air passenger demand at small- and medium-sized airports is first presented, where local passengers may travel by vehicle to larger, out-of-region hub airports. The results confirm that airfare and passenger volume relationships exist between the local and substitute airport pairs included in the dataset, and that lower airfares at the substitute airport have a greater impact on airport choices made by larger travel groups. They also suggest the existence of positive feedback in that if an airport attracts increasingly smaller passenger numbers with fewer air services and fewer air services with fewer passengers, without external intervention airport leakage impacts may be irreversible and exacerbate over time. A conceptual market share equilibrium analysis is used to illustrate the mechanisms of a direct two-way feedback relationship between passenger volumes at a local airport and air service characteristics at both the local and substitute airports. With data, this quantitative framework can help guide airport planners in further assessing and verifying suspected passenger leakage issues at their airport. The results suggest that without intervention, airport leakage impacts may be difficult to reverse; further exacerbating the trend are technological advancements that make driving cheaper and easier (connected and autonomous vehicles). However, the results can also guide planners in choosing the types and degrees of infrastructure investments and airline incentives that may be used to expand or retain air services to attract passengers.     

大学生创业能力结构的理论分析与实证检验

大学生创业能力研究对建设创业型经济、完善高校教育体系和促进人的全面自由发展具有重要意义。通过理论与文献梳理,结合个案访谈结果,将大学生创业能力划分为机会发掘能力、组织管理能力、战略决策能力、资源整合能力、创新创造能力和挫折承受能力6个维度。根据因子内涵定义和相关学者研究成果,设计了大学生创业能力测量量表,并对江苏省高校进行了实证数据采集,验证了大学生创业能力结构的信度和效度。     

浙江省农产品国际竞争力的实证分析

本文分析了浙江省农产品贸易的发展现状和特点,并运用国际市场占有率(MS)、贸易竞争力指数(TC)、显性比较优势指数(RCA)对浙江省农产品国际竞争力进行实证测度,分析了浙江省现阶段农产品国际竞争力现状和变化趋势,表明浙江省农产品参与国际贸易的力度不够,发展潜力巨大,并就此提出了提升浙江省农产品国际竞争力的对策建议。