VARIANCE BOUND TESTS OF BOND MARKET EFFICIENCY

In this paper we examine variance bound tests of the joint hypothesis that (1) bond markets are efficient and (2) the term structure is determined by the expectations hypothesis. Both the Singleton and Shiller tests are shown to be seriously biased toward rejecting the joint hypothesis in finite samples. Flavin's test is unbiased but has a very high variance leading to many false rejections of the joint hypothesis. When corrected as suggested by Flavin, Shiller's test is unbiased and has a relatively low variance. Unfortunately, it is also sensitive to measurement error.     

德国如何成功举办世界杯足球赛

2006年德国世界杯足球赛是2008年北京奥运会之前全球最大的体育赛事。北京市发改委奥运经济高级顾问黄为专程前往德国，为北京奥运求取真经。[编者按]     

The impact of market orientation on patient loyalty: the mediation of relationship quality

In health services, how to establish good relationships with patients and enhance patient loyalty has been crucial for service managers. We explore the impact that patients’ perceptions of market orientation direct effect on patient loyalty to a hospital as well as indirect effect via the mediation of relationship quality. Self-administered questionnaires were employed to collect data from outpatients. 450 questionnaires were valid. Results showed that market orientation had a direct positive impact on patient loyalty to the hospital and an indirect positive impact via the mediation of relationship quality and patient loyalty to a physician.     

神经网络在实验室检测工作质量管理及控制中的应用

对实验室检测工作质量中存在的风险因素进行研究,形成风险评价指标体系,并运用BP神经网络建立风险分析评价模型,对风险评价指标进行量化评价,最终获得量化的实验室整体检测工作质量风险数据,为实验室有效管理提供科学决策依据。     

广西亚热带作物研究所植物种质资源寒害调查简报

南宁遭受50年一遇的长期阴冷型天气,使广西亚热带作物研究所多种植物种类（品种）遭受寒（冻）害,本文重点调查收集了龙舌兰麻、棕榈类植物、热带亚热带果树、园林绿化乔灌木等植物受害情况,并提出寒害植株的处理措施,为今后热带亚热带植物种质资源的收集保存提供宝贵资料,并对其开发利用提供科学依据。     

破解现代长江航运业发展难题的思考

用科学发展观析评长江航运业现状,阐释现代长江航运业发展面临的主要问题,提出解决问题的思路。     

Sustainability and consumption

We consider the implications of the three pillars of sustainability (environment, economy and social justice) on consumption in a wealthy country. Building a theoretical model that includes consumers, business, government, the environment, and economic and political relations between nations, we explore how sustainability should affect the consumption behavior of consumers, charitable aid to poorer countries, and responsible environmental practices by businesses. Our model enables us to provide normative implications for consumers, society and business. Importantly, we assume that all stakeholders will optimize their self-interest, and that altruism will only partly explain behavior consistent with sustainability. Among the more non-obvious findings are that (1) the poorer the poor countries are, the less the rich countries should consume, (2) the more sensitive the global political climate is to economic inequity between the rich and poor nations, the less the rich countries should consume, and (3) if aid to poor countries is effective enough, then the more materialistic the society is, the more charitable aid it should give. We also confirm a number of more intuitive findings, such as that business should use more green technology as the taxes on pollution and/or efficiency of green technology increase, and the more resource-intensive consumption is, the less consumers should consume. Taken as a whole, the findings imply that societal consumption patterns should be sensitive to aspects of environmental impact and social justice, even if altruistic motivations are absent.     

长汀县『公司+农户+政府』产业运作模式的探索

长汀县是福建省的贫困山区县,近年来在总结发展各产业经验教训的基础上,探索出"公司+农户+政府"产业运作的"长汀模式",使区域性支柱产业呈现稳健发展的良好态势.本文以长汀河田鸡产业为例,就"公司+农户+政府"产业运作方式和应注意的问题谈点粗浅看法.     

试论思维方式的理论源流

系统的思维方式理论是在西方思想史上逐渐形成的.从柏拉图的"理念论"一直到皮亚杰的"认知图式"可以看作是思维方式理论发展的几个主要形态.虽然他们讲的理论同我们现在所讲的思维方式有很大的差别,但无疑他们的思想是思维方式的理论源流,对于我们深入探讨思维方式理论有重要的启发作用.     

应用型本科院校“管理信息系统”教学改革研究

以应用型本科院校铜陵学院为例,文章从课程体系、教学改革、实验教学、教材建设等几个方面总结、分析计算机系对＂管理信息系统＂所进行的课程教学改革,结果发现,无论在培养学生分析解决问题的能力方面,还是在增强学生实际应用及操作能力方面,课程教学改革都取得了较好的效果。