一种双机热备份计算机系统

本文探讨了计算机系统冗余备份的工作原理和实现方法，介绍了一种实用的双机热备份切换、控制系统和其切换、控制单元的组成和工作原理。     

CREDIBILITY, MACROECONOMIC FUNDAMENTALS AND MARKOV REGIME SWITCHES IN THE EMS

The main objective of this paper is to use the Markov regime‐switching modelling framework to describe and analyse the credibility of a number of countries participating in the European Monetary System during 1980–1998. Our credibility indicator, based on Hughes Hallet et al.'s (1997) methodology, is subject to discrete regime shifts and is made dependent on macroeconomic fundamentals. We carry out extensive testing to assess the specification of the Markov regime‐switching model and the potential existence of permanent breaks. A contribution of our paper is the specification of a multivariate Markov switching model that allows us to examine whether macroeconomic variables have asymmetric effects on credibility. Another contribution is the specification of a regime‐switching model with time‐varying transition probabilities, which enables us to determine whether changes in macroeconomic variables can trigger switches between the low and high credibility regimes. We find strong evidence of regime switching behaviour in all countries. Both the level of credibility and the transition probabilities display an asymmetric response to changes in macroeconomic variables, with the stance of fiscal policy exerting the most systematic influence in all countries.     

基于DSRC和CDPD的先进公交系统

本文首先讲述了ITS中的2种通信技术——专用短程通信（DSRC）和蜂窝数字分组数据网（CDPD）的基本概念、工作原理及系统特点等，然后提出了一种基本这2种通信技术的先进公交系统，并对各个子系统的功能结构进行了描述。     

不同财务管理目标下业绩评价选择及其关系处理

从财务管理目标出发考察企业业绩评价方法的演变过程，是为了在它们之间建立一种联系。不同的财务管理目标下，企业的业绩评价选择会有很大的差异，而其总体趋势是选择综合业绩评价方法。在不同的财务管理目标下选择不同的业绩评价指标时，又要处理好三对关系：短期发展与长期发展、局部利益与全局利益、财务指标与非财务指标。     

A Pricing and Hedging Comparison of Parametric and Nonparametric Approaches for American Index Options

This article investigates the extent to which options on theAustralian Stock Price Index can be explained by parametricand nonparametric option pricing techniques. In particular,comparisons are made of out-of-sample option pricing performanceand hedging performance. The dataset differs from many of thoseused previously in the empirical options pricing literaturein that it consists of American options. In addition, a broaderspectrum of techniques are considered: a spline-based nonparametrictechnique is considered in addition to the standard kernel techniques,while the performance of a Heston stochastic volatility modelis also considered. Although some evidence is found of superiorperformance by nonparametric techniques for in-sample pricing,the parametric methods exhibit a markedly better ability toexplain future prices and show superior hedging performance.     

我国资本市场存在的制度功能缺陷与对策

我国资本市场是在新旧体制转换中建立起来的，先天就存在着制度和市场功能方面的缺陷，亟需要采取有效应对策略以弥补，使我国资本市场的发展走上正常轨道。     

中国社会保障税税制设计的探讨——基于企业增值税代替工资总额为税基的税制设计构想

对于中国社会保障税税制的设计，以企业增值税代替现行的工资总额为税基，把“增值税”作为社会统筹部分的社会保障税税基；在提出中国社会保障税设计应遵循的原则基础上，进行社会保险税税制要素设计的若干构想；最后，分析以“增值税”为税基可能出现的问题及其完善。     

我国职业经理人存在的问题及改进措施

职业经理人是企业所有者的代表 ,行使着企业经营管理的职能 ,对企业所有者负责。我国职业经理人作为一个阶层还有待形成。建立科学、合理的经营者激励薪酬制度 ,培育职业经理人市场 ,是造就我国职业经理人队伍的关键。     

高技术企业业绩评价指标体系的五维度框架设计

业绩评价已成为政府、市场和企业普遍关注的现实问题，指标体系是业绩评价的基础，指标体系构建的好坏直接影响到业绩评价的效果。高技术企业业绩的评价应结合高技术企业的特点，构建财务、产品与技术创新、智力资本开发、价值链流程、可持续发展五个维度的评价指标体系。     

医疗服务价格管制与"以药养医"

近年来，我国医疗费用持续上涨，医患关系也变得更加紧张。而针对这些问题所采取的一系列改革措施并没有产生明显的效果，这主要是因为没有充分认识到医疗服务价格管制所带来的严重的负面影响。本文提供了一个用于评价医疗服务价格管制的分析框架。本文的分析表明，医疗服务价格管制会导致“以药养医”体制的形成，而且“以药养医”这一间接定价机制，通常无法使患者的效用水平达到只存在道德风险和有限责任约束时的次优水平。因此，改革目前备受非议的医疗体制，重点在于放松对医疗服务价格的管制。