中国房地产市场价格卡特尔的反垄断法规制——以价格领导行为为例证的分析

中国房地产市场上不断攀升的房价,极大地损害了消费者福利和社会整体利益。文章从经济学视角详细论述了中国房地产市场结构,以及由此产生的特定价格竞争行为。并以其中的价格领导行为为例证,从竞争法的视角指出其本质是房地产市场上一种以协同行为形式出现的价格卡特尔,并仔细分析其构成要件和具体要素,必须以反垄断法对其进行规制。这也是从反垄断法路径提出的平抑房价的可能性方案。     

“自然界演化的全息境界论”质疑——评《自然辩证法新编》中邬焜先生的理论与观点

邬焜先生在《自然辩证法新编》中,从哲学角度将信息分为客观（不实在）信息与主观（不实在）信息,并用所谓的客观信息取代物质第一性的地位,使物质成为没有认知内容的空壳;以信息进化取代物质进化;主张认识物质世界就是将客观信息变为主观信息,就是创造主观信息;世界统一于全息境界。其观点的推渲值得商榷。     

农村公共产品农户供给行为的影响因素分析——基于嵌入性社会结构的理论分析框架

运用嵌入性社会结构的理论分析框架,通过对安徽省4县(市)672户农户的调查,对影响农户供给①农村公共产品的因素进行分析.研究结果表明,农户家庭特征、公共产品特性、社区治理特征、社会资本网络和政府支持效应影响着农户供给的行为.其中,社区治理特征对农户供给行为影响最大,其次是农户的家庭特征和公共品产品特性,再次是社会资本网络;虽然政府支持效应对农户供给行为的影响不甚明显,但农户对政府支持的需求程度却很强烈.     

壮族布麽的组织结构及传承方式

壮族布麽由巫觋发展演变而来,皆为男性,布麽都不是专职的神职人员,平时从事农业生产,有人邀请才出去做法事,做法事时大都单打独个行动,缺乏一个团体性的组织机构。布麽通过相关的修炼阶段和授戒仪式,一旦成为布麽后,要按照麽教的教规教义自我约束,按章行事,担当救赎社会、超度亡魂、安抚心灵的重任,并且通过师徒传承或家族传承的方式担当起传承麽教使之薪火不灭的义务。     

能源强度变动的指数分解研究——基于新疆数据的实证分析

能源强度是衡量能源利用效率的重要指标,二者间呈反比关系。文章使用Refined Laspeyres指数分解模型,对1985--2005年新疆能源强度进行分解,寻求影响新疆能源强度变动的主导效应。实证结果显示,改革开放以来,新疆能源利用率进入了持续改进历程,但在全国仍处于较低的水平。但还应注意到,新疆能源强度效应主要是由工业部门能源强度改进所致,尤其是重工业部门能源强度的改进,扭转了能源利用效率提升的不利影响。因此,应大力支持重工业部门的节能技术进步,同时更应大力发展耗能较低的第三产业。     

金融市场中羊群行为的模拟研究及启示

本文在Bikhchandani,Hirshleifer和Welch的羊群行为模型(BHW)的基础上,从实验经济学的角度对金融市场中的羊群行为和信息瀑布进行实验模拟研究,并提出相关的政策建议。本文主要进行了三组实验,并对投资者决策的有效性和实验过程中的计数偏差、现状偏差和代表性偏差进行了考察。实验结果显示,在信息不对称的情况下,很可能会发生信息瀑布和羊群行为。信息因素对羊群行为的产生有重要的影响。在信息模糊和信息不完全的情况下,投资者决策的有效性会大幅度地降低,并伴随着更多的非理性的决策行为。     

中国独生子女：数量、结构及风险

利用“五普”资料,从已领取独生子女证的妇女数、终身独生子女数、按政策生育独生子女数等角度分析了我国独生子女的数量,同时分析了独生子女的年龄、性别结构及其地区分布,在此基础上,讨论了独生子女家庭的风险问题。     

基于网格技术的高校图书馆信息资源共享系统研究

网格(Grid)技术是构筑在互联网上的一组新兴技术,将网格技术应用于高校图书馆将是未来高校图书馆的一个发展趋势.针对我国高校图书馆发展现状,建立基于五层沙漏模型和开放网格体系(OGSA)的高校图书馆信息资源共享系统模型和各类保障机制,有利于我国高校图书馆的发展.     

A Wavelet‐Based Approach to Preserve Privacy for Classification Mining*

Despite the commercial success of data mining, a major drawback has been acknowledged across academic, industry, and government sectors, namely, the issue of violating the privacy of individuals. We propose a data transformation method based on wavelets to disguise private data while preserving the original classification patterns. Wavelet transformations have been used extensively in signal processing for data reduction, multiresolution analysis, and removing noise from data. In our implementation, two commonly used wavelet transforms, the Haar and the Daub‐4 transforms, are tested for pattern and privacy preservation in classification mining tasks. Empirical results confirm that the Haar and the Daub‐4 transforms preserve the classification patterns and preserve the privacy for real valued data.     

Impact of Information Technology Integration and Lean/Just‐In‐Time Practices on Lead‐Time Performance*

Managers seeking to improve lead‐time performance are challenged by how to balance resources and investments between process improvement achieved through lean/just‐in‐time (JIT) practices and information technology (IT) deployment. However, extant literature provides little guidance on this question. Motivated by both practical importance and lack of academic research, this article examines empirically the relationships among interfirm IT integration, intrafirm IT integration, lean/JIT practices, and lead‐time performance using data from IndustryWeek's Census of Manufacturers ( IndustryWeek, 2006 ). The results provide several new insights on the relationship between IT integration and lean/JIT practices. First, the study confirms that implementing lean/JIT practices significantly reduces lead time. Second, lean/JIT practices mediate the influence of IT integration on lead‐time performance. This suggests that process improvements that result from lean/JIT practices are important contributors to the success of IT integration. Even companies that have experienced success in reducing lead time through lean/JIT practices may benefit from IT integration practices such as those embodied in enterprise resource planning systems. The findings provide managers with empirical evidence and a theoretical framework on the balance between lean/JIT and IT for effecting improvement in lead‐time performance, thus offering practical guidance on this important question. Future research is needed to extend the lean/JIT practices in this study to supply chain practices and explore the relationship between supply chain practices and IT integration.