东部地区农业结构变动与政策变量之间的相关性研究

本文通过农民收入变量、农民受教育程度、农村人均固定资产投资额、政府用于农村人均文教娱乐用品及服务支出和政府用于农村财政支出等政策变量与东部地区农业结构变动的相关性分析,再根据未来若干年我国及东部地区农业政策变化趋势,从而预测未来我国东部地区农业结构的变化趋势。     

Uncertainty in the Austrian Theory of Capital

This paper is based on the traditional Austrian Theory of Capital which deals with expected values of future returns of investments over various periods of time. The longer the time period that elapses between the beginning of a production process and its end, the higher the (expected) productivity must be due to positive time preferences of individuals. This paper focuses on the uncertainty of future returns and on uncertainty preferences, instead. Based on the Hayekian idea of the dispersion of knowledge in society, it will be shown that there is a systematic relationship between the structure of capital and uncertainty. This result will be derived for a production process characterized by complete vertical integration and one which is not completely vertically integrated. The distinction between these two settings is crucial, if one accepts the distinction between an individual and a social period of production and the planning horizon which are introduced in this paper.     

完善公司制企业治理结构的思考

在分析公司制企业治理结构现状及存在问题的基础上,提出了国有企业通过改革,建立股东、债权人、经营者、员工等利益相关者多方合作的企业治理结构的目标模式,通过对企业经营者的激励与约束,确保国有资产保值增值。     

以企业再造思想振兴东北老工业基地

从企业再造理论产生的背景和东北老工业基地的实际情况来看,在振兴东北老工业基地的实践中应贯彻企业再造思想.要以企业再造思想为指导,把整个东北地区看做一个大组织,搞好地区的文化建设;要从企业再造理论的精神实质出发,建立新的完善的市场机制;要坚持企业再造思想所强调的三个核心原则,搞好东北地区的行政改革.     

QUADRATIC TERM STRUCTURE MODELS FOR RISK-FREE AND DEFAULTABLE RATES

In this paper, quadratic term structure models (QTSMs) are analyzed and characterized in a general Markovian setting. The primary motivation for this work is to find a useful extension of the traditional QTSM, which is based on an Ornstein–Uhlenbeck (OU) state process, while maintaining the analytical tractability of the model. To accomplish this, the class of quadratic processes, consisting of those Markov state processes that yield QTSM, is introduced. The main result states that OU processes are the only conservative quadratic processes. In general, however, a quadratic potential can be added to allow QTSMs to model default risk. It is further shown that the exponent functions that are inherent in the definition of the quadratic property can be determined by a system of Riccati equations with a unique admissible parameter set. The implications of these results for modeling the term structure of risk-free and defaultable rates are discussed.     

WebGIS技术在物流配送系统中的应用

万维网地理信息系统（WebGIS)是Internet技术和地理信息系统技术相结合的产物。在分析WebGIS实现技术的基础上，探讨了基于WebGIS的物流配送系统设计，提出了一个以SuperMap IS平台为基础，基于组件和Java Applet技术，利用ASP来实现界面的显示和交互，体现Brower/Serser三层体系结构的系统解决方案。     

公司治理结构中经营者盈余管理的博弈分析

本文从经营者与监督者之间的博弈模型入手,讨论了公司治理结构对盈余管理的影响,并在分析了我国目前的公司治理结构存在的问题后,提出了一些措施,最后给出了研究建议。     

日本泡沫经济制度性原因分析及启示

20世纪90年代被称为日本经济“失去的10年”。日本经济一蹶不振,丧失了整整10年的发展。不少学者认为,90年代日本经济萧条意味着日本“又一次战败”即在经济战场上的“战败”。日本经济战败是败在了“制度”或“体制”方面,败给了成功地实行了“制度创新”或“体制创新”的美国。分析引发日本泡沫经济的制度性原因、探索日本经济走出衰退的途径,从中可寻找出对我国经济发展的有益启示。     

区域产业簇群的发展与政府职责

本文认为,现代产业簇群是基于地缘关系、产业技术链、同业交往等关系而共生的产生群体,是提高国家经济实力和国际竞争力的重要途径。它的产生与发展是技术进步和社会分工的结果,是产业发展的客观规律,经济全球化是现代产业簇群的必然趋势。为了促进我国产业簇群的发展,文章提出,政府在产业簇群的发展中应遵循产业簇群的发展规律,充分发挥其在重视与定位、研究与规划、宣传与传播、引导与协调、支持与宽容、保障与政策等方面的职能。     

Symmetry and order in the portfolio allocation problem

Summary. This research studies the role of multivariate distribution structures on random asset returns in determining the optimal allocation vector for an expected utility maximizer. All our conclusions pertain for the set of risk averters. By carefully disturbing symmetry in the distribution of the, possibly covarying, returns, we ascertain the ordinal structure of the optimized allocation vector. Rank order of allocations is also established when a permutation symmetric random vector is mapped into the returns vector through location and scale shifts. It is shown that increased dispersion in the vectors of location and scale parameters benefit, ex-ante, investors as does a decrease in the rank correlation coefficient between the location and scale parameter vectors. Revealed preference comparative static results are identified for the location and scale vectors of asset returns. For most issues addressed, we arrive at much stronger inferences when a safe asset is available. Received: August 8, 2000; revised version: January 8, 2001