城镇数字化地产评估系统及应用

城镇数字化地产评估系统是以“城市土地定级估价综合模型”作为主要评估方法 ,针对中小城镇地产评估的实际情况 ,基于Map/info平台 ,将多种应用程序集成而开发出来的。经实际使用 ,该系统操作简便 ,经济适用。     

设置三角形阻流件的通道内流体流动特性研究

对常物性流体在通道内的周期性充分发展层流流动特性进行二维数值计算分析,所研究的通道是由两平行平板和交错布置于两平行平板上的多个三角形阻流件构成。给出了不同阻流件高度、顶角和间距以及不同Re 数下的流函数图和阻力特性曲线。     

知识型服务贸易与经济增长

在罗默、格罗斯曼和赫尔普曼知识国际流动增长模型的基础上，比较分析了在知识国际流动的情况下，没有知识型服务贸易和有知识型服务贸易的经济增长差异，指出了知识型服务贸易对消除知识和技术在国际间的重复研发，提高长期创新率和经济增长率的重要作用，并就加快我国知识型服务贸易的发展提出了政策建议。     

资本流动、货币供给与价格总水平--一个理论分析框架

在国际收支的货币主义理论背景下，资本流动与货币供应量之间是一个循环反复的作用过程，二者的相互作用在内部经济与外部经济取得新的均衡时结束。借助IS—LM—BP模型可以将这种复杂的循环作用过程以及作用结果通过图形进行演绎。固定汇率制度下资本不完全流动时的IS—LM—BP模型与开放经济下的AS—AD模型分析表明，在固定汇率制度下，资本流出对国内货币供应量有紧缩效应，并使价格总水平下降；相反，资本流入对国内货币供应量有扩张效应．使价格总水平上升。     

Inter-basin water transfers under uncertainty: Storage capacity and optimal guaranteed deliveries

This paper deals with water transfers between jurisdictions not claiming riparian rights to the same water source, and taking place through straightforward sales. Taking into account the uncertain nature of water surpluses, we investigate, within a partial equilibrium framework, the implications of a third party's provision of storing facilities upon the potential supplier's decision whether, and to what extent, it is worthwhile to guarantee a constant amount of water exports. The analysis suggests that there exists a minimum storage capacity below which the potential supplier will never find it profitable to divert a constant amount of water outside his boundaries; the greater the uncertainty about future surpluses and/or internal costs due to even occasional water shortages resulting from the water export commitment, the higher the required minimum storage capacity will be. Above this minimum, an increase in the capacity would be better for the surplus agent, but in a situation in which water surplus is expected to decrease over time, increases in storage capacity would make him willing to guarantee a smaller amount of water deliveries.This work has been carried out under the auspices of the European Science Foundation's research program Sharing fresh water resources in the Mediterranean region: An economic perspective. Previous versions have been presented at ESF workshops held at the Universities of Haifa, Padova and Crete. Financial support from MURST (funds 40% — 1992) is gratefully acknowledged. We wish to thank Nunzio Cappuccio, Haluk Akdogan, Karl Mäler, Mordechai Shechter, Naomi Zeitouni, and two anonimous referees for helpful comments. The usual disclaimer applies.     

财产保险公司资产负债管理多维量化评估体系研究

良好的资产负债管理是保险业可持续发展的基石,也是支持保险业在日益复杂的风险环境中保持稳健发展、防范系统性风险的重要保障。近年来,随着我国金融市场发展,业务产品创新加快,保险业在资产端与负债端的业务结构和风险特征出现了新情况、新变化。特别是部分保险公司缺乏有效的治理结构,采取激进经营、激进投资的策略,导致业务快进快出、风险敞口过大以及流动性问题,对保险公司资产负债匹配管理、风险控制提出了挑战。本文介绍了财产保险公司资产负债多维度量化评估规则设计原理、主要评估模型和评估方法,针对财产保险公司的负债特性提出的沉淀资金匹配,在成本收益匹配中有机地将资产投资收益与承保业务综合成本进行匹配,在现金流匹配模式中打破了僵化的匹配模式,解决了长期困扰财产保险公司的资产负债期限不匹配的问题,对财产保险公司资产负债管理具有重要意义。     

The Impact of Acquisitions on Operating Performance: Some Australian Evidence

This study investigates the impact of acquisitions on the operating performance of Australian firms. For a sample of 36 Australian acquisitions occurring between 1986 to 1991 inclusive, and using matched firms to control for industry and economy-wide factors, the results based on four accrual and four cash flow performance measures show that corporate acquisitions do not lead to significant improvements in post-acquisition operating performance. The consistency of the results with the agency, the hubris and the financial motivation hypotheses suggests that corporate acquisitions in Australia may be undertaken for other than synergistic reasons. The results assist in explaining inconsistent findings reported in the literature.     

A Semiparametric Method for Valuing Residential Locations: Application to Automated Valuation

This paper is motivated by automated valuation systems, which would benefit from an ability to estimate spatial variation in location value. It develops theory for the local regression model (LRM), a semiparametric approach to estimating a location value surface. There are two parts to the LRM: (1) an ordinary least square (OLS) model to hold constant for interior square footage, land area, bathrooms, and other structural characteristics; and (2) a non-parametric smoother (local polynomial regression, LPR) which calculates location value as a function of latitude and longitude. Several methods are used to consistently estimate both parts of the model. The LRM was fit to geocoded hedonic sales data for six towns in the suburbs of Boston, MA. The estimates yield substantial, significant and plausible spatial patterns in location values. Using the LRM as an exploratory tool, local peaks and valleys in location value identified by the model are close to points identified by the tax assessor, and they are shown to add to the explanatory power of an OLS model. Out-of-sample MSE shows that the LRM with a first-degree polynomial (local linear smoothing) is somewhat better than polynomials of degree zero or degree two. Future applications might use degree zero (the well-known NW estimator) because this is available in popular commercial software. The optimized LRM reduces MSE from the OLS model by between 5 percent and 11 percent while adding information on statistically significant variations in location value.     

中国金融市场分割问题探源

银行的不良贷款问题得到了学术界的广泛关注,而金融体系中另一个潜在的缺陷,资本的低效率使用问题却没有引起足够的重视。金融理论告诉我们分割的金融市场是阻碍资本自由流动的原因, 本文的目的在于对我国金融市场分割的原因进行探讨。     

可持续增长率与财务管理目标相关性分析

可持续增长率是企业现有财务资源所能够支持的销售收入的最大增长率,代表企业最适宜的增长速度。企业的财务管理目标是企业价值最大化,而决定企业价值的重要因素是由销售收入增长所带来的未来现金流量。企业以可持续增长率作为销售增长目标,有利于企业价值的持续增加;而将企业价值最大化作为财务管理目标又有利于企业的可持续增长,可持续增长率与财务管理目标密切相关。本文将以可持续增长率与财务管理目标的相关性作为研究起点,试图从财务管理目标的角度来进一步认识可持续长率。