Analytic derivation of sociometric dimensions

Dimensional analysis has been defined variously as the synthesis of dimensionless variables and as a way of spatially representing data. While in sociometrics, one may not be able to devise models resembling those of the physical sciences because of the complexity of many social situations, one may in some cases successfully apply the techniques of classic dimensional analysis and get empirically valid results. More often we derive with analytic methods from the social sciences different kinds of dimensional frameworks in which to represent data. This paper will compare these approaches to the study of relationships and give examples of where each might be appropriate. Finally, a classification of the analytical methods will be presented.     

Mean-variance hedging for interest rate models¶with stochastic volatility

The mean-variance hedging approach for pricing and hedging claims in incomplete markets was originally introduced for risky assets. The aim of this paper is to apply this approach to interest rate models in the presence of stochastic volatility, seen as a consequence of incomplete information. We fix a finite number of bonds such that the volatility matrix is invertible and provide an explicit formula for the density of the variance-optimal measure which is independent of the chosen times of maturity. Finally, we compute the mean-variance hedging strategy for a caplet and compare it with the optimal stategy according to the local risk minimizing approach. Received: 14 July 2000 / Accepted: 10 April 2001     

用期权定价模型评估企业并购的价值

针对传统企业并购价值评估模型的局限性,本文从期权的角度阐述了企业并购的期权特性,指出企业并购实质上相当于取得了一个看涨期权;并以连续支付红利的美式期权定价理论为基础,建立了企业并购价值评估的期权定价模型。最后,通过实例论述了如何应用该模型来评估企业并购价值,对实践中企业并购价值的合理确定具有重要的指导意义。     

Public choice interpretations of distributional preference

This essay examines, from the perspective of both economics and ethics, the logical foundations of income transfers in a democratic society that allocates resources, in the large, through free markets. Such transfers, enacted through the public choice process, modify the market-determined distribution of income, as a reflection of the distributional preferences of the members of a society. Both constitutional and post-constitutional explanations of redistributions are considered. A discussion of recent experimental evidence of distributional preferences leads into a critique of simple equality, built on Michael Walzer's distinction between monopoly and dominance, as a criterion of distributive justice.     

一类企业物流成本核算的M-A模型

本文在分析和比较任务成本(Mission Costing)与作业成本(Activity-Based Costing)的前提下,将任务成本与作业成本结合起来构建了企业物流成本核算的M-A模型框架.在这个模型框架内,系统地阐述了企业物流成本核算的涵括范围、数据收集来源以及相关物流成本的分配架构等.     

1998年中国上市公司并购实践的效应分析

对上市公司的收购是中国股市近些年出现的新现象 ,本文以 1 998年深沪两市发生的全部 67家公司的并购为样本 ,以公司净资产收益率 (NROA)和主业利润率(CROA)为指标 ,将所有样本根据并购原因划分为 6类 ,以并购前 2年和并购后 3年的数据为基础 ,系统分析了并购的效应与得失。在此基础上 ,还讨论了国有企业与民营企业作为收购方的并购效应和并购的有偿转让与无偿划拨方式的不同结果。文章的结论是 :业绩较差的公司较愿出让控股权 ;多数并购是战略性的 ,获上市地位是主要的并购动力 ;并购后主业得到明显加强 ;市场化的战略性并购效果较好 ,有偿并购的效果也较好。     

一种新型的合成红宝石杜罗斯（Douros）合成红宝石

本文介绍了希腊用助熔剂法生产的，一种称之为杜罗斯（Ｄｏｕｒｏｓ）的合成红宝石新品种。     

王国维:"一代有一代之文学"说的集大成者

“一代有一代之文学”说是一个在世代累积基础上建构的学术命题。这一命题植根于中国传统的文变时序说和文体通变论，并由于王国雏的理论贡献而基本定型．成为中国文学史研究中最重要的学术命题，深刻地影响了20世纪文学史研究的格局与走向。     

葡萄球菌肠毒素A的研究进展分析

该文就葡萄球菌肠毒素A的生物学活性、促淋巴细胞增殖和抑制肿瘤细胞生长作用的研究进展作一综述。     

西方产业竞争政策的体系和目标

本文讨论美国、欧共体和日本的竞争政策的方法和体系的差异问题。美国的竞争政策侧重于追求消费者剩余和生产者剩余最大化 ,强调通过竞争的作用来达到这一经济效率目标。欧共体的竞争政策则强调在消费者福利的基础地位 ,通过协调竞争规则来促进欧共体经济一体化的进程。日本的反垄断法原本从西方吸收过来的 ,经过半个世纪的发展和演变 ,已经具有明显的日本特色 ,其基本功特征是对价格机制的运作缺乏信任 ,对规模经济神话的盲目崇拜和信任 ,结果是经常提倡和鼓励那种必然会导致寡占市场结构的兼并活动。