Trading frequency and event study test specification

We examine the effects of thin trading on the specification of event study tests. Simulations of upper and lower tail tests are reported with and without variance increases on the event date across levels of trading volume. The traditional standardized test is misspecified for thinly traded samples. If return variance is unlikely to increase, then Corrado's rank test provides the best specification and power. With variance increases, the rank test is misspecified. The Boehmer et al. standardized cross-sectional test (Event-study methodology under conditions of event-induced variance, Journal of Financial Economics 30, pp. 253–272) is properly specified, but not powerful, for upper-tailed tests. Lower-tailed alternative hypotheses can best be evaluated using the generalized sign test.     

科技期刊出版业务流程的案例研究

本文基于业务沆程再造理论、数字内容理论和开放存取的技术方法,针对两种典型的样本期刊,对出版业务流程进行了对比研究。案例研究发现,传统期刊的出版业务流程在成本、质量、服务、速度等方面存在严重的缺欠,而再造后的网络期刊出版节约了时间和资金,提高了质量,加强了互动的服务,提高了效率,实现了整个出版工作的协调一致,取得了戏剧性的效果。基于此,本文提出对科技期刊业务流程再造的思考。     

翻译研究之解构

在全球化进程不断加快的今天,翻译学研究获得了空前的繁荣。除了几代翻译人的不懈努力之外,人文社会科学领域的众多理论思潮都对翻译学的学科发展起到过积极作用,这其中德里达的解构主义无疑是功不可没的。     

Topical modelling issues in Solvency II

The main reasons for giving European insurance companies the option to apply internal models for calculating the main solvency requirement within the Solvency II framework is to enhance better risk management in the firms, and to provide the opportunity to derive a more accurate risk-oriented capital requirement than the standard Solvency Capital Requirement (SCR) could provide. The possibility to use internal models within pillar 1 basically means freedom to calculate the solvency requirement using some other formula and even principles than those given by the standard formula. This freedom is more limited with partial models.

This paper gives a brief introduction and update to the Solvency II project, reviews and discusses some topical aspects of internal models from the supervisory point of view, and points out some relating results of the Quantitative Impact Studies carried out, thus far, in the EU by CEIOPS.     

浅论研究生党建载体的构建与创新

党建工作是研究生管理和教育工作的重要组成部分,作为社会中的精英阶层和主导力量,对于研究生进行有效的党建组织工作显得尤为必要.针对研究生生活、学习、工作范围和形式的多元化特点,本文试图从途径、形式、制度等几个维度进行探究,寻求研究生党建栽体的构建与创新,以期为相关的研究工作提供参考和借鉴.     

高管改革开放经历与创新决策——基于风险承担和职业路径的双重调节效应

改革开放成长起来的企业家拥有哪些特质?这些特质会影响企业创新决策吗?通过手工搜集CEO背景数据,以2002-2015年沪、深A股上市的制造业和信息技术业为样本,采用静态面板回归、动态DID分析及2SLS检验等方法后发现,有改革开放经历的CEO会显著提升企业创新投资,且其个人风险承担和多元化的职业路径起着正向调节作用。进一步分析发现,与青少年和成年阶段相比,在童年阶段经历改革开放事件的CEO对创新投资的影响更明显;与国有企业相比,在民营企业中改革开放成长起来的CEO作用更显著。此外,改革开放成长起来的CEO将通过创新投资进而提高创新产出数量及质量。     

公允价值与股市过度反应——来自中国证券市场的经验证据

本文以我国2007年至2010年16个季度公告日为样本,以公允价值变动损益和股票回报为观察对象,对公允价值与股市过度反应进行了实证研究。研究发现:(1)股市过度反应与公允价值变动损益显著相关;(2)过度反应主要存在于估计窗口而非事件窗口;(3)我国金融业上市公司的金融资产市值计量模式显著放大了股市泡沫,且在不同的市场条件下,股票回报对公允价值的过度反应程度呈现出非对称性。本文扩展了事件研究法,给出了公允价值引起股市过度反应的具体标准,重点检验了估计窗口的信息含量,使之更加适应于公允价值资产市值计量模式的研究。本文验证了公允价值作为"会计加速器"作用的存在,有助于理解公允价值计量模式对我国金融稳定的影响机理。     

新巴塞尔资本协议与商业银行操作风险管理

操作风险正日益成为全球银行业风险管理的研究焦点。新巴塞尔协议将操作风险纳入风险管理框架，为其设定新的资本要求。目前我国的商业银行缺乏风险意识，尤其是在操作风险方面基本没有什么量化操作风险的科学方法，不能正确反映所承受的风险，操作风险的管理水平亟待提高。本文首先对操作风险进行界定，分析其主要特点，之后从国际和国内两方面对操作风险现状进行考察，阐述了新巴塞尔协议中操作风险的计量方法并对其进行评述，最后介绍了操作风险管理流程，并对我国商业银行操作风险管理的策略选择提出建议。     

A change in market responses to the environmental management ranking in Japan

This article investigates stock price reactions to the release of the environmental management ranking issued by Nihon Keizai Shimbun (Nikkei newspaper) from 1998 to 2005, by using a standard event study methodology. An examination of stock price movements of the top 100 manufacturing companies reveals that stock prices during the sample period did not respond significantly to the release of the ranking within a 3-day event window. However, market responses became significantly positive after 2003, while they were significantly negative in 1999 and 2000. The stock prices of upgraded companies in particular reacted negatively before 2000, but positively after 2002. These results indicate that market reactions were changed between 2001 and 2002, when the Japanese government showed its strong commitment to environmental policies by establishing the Ministry of the Environment and signing the Kyoto Protocol, following a number of legislations.     

Bush v. Gore and the Effect of New Source Review on Power Plant Emissions

New Source Review (NSR) is a Clean Air Act regulation that requires electric utilities to meet emission standards when making modifications to existing power plants. The regulation increases the cost of replacing worn out parts, and limits the firm’s scope of potential capital investments. Such restrictions may lead to greater retirements and lower utilization, adversely affecting profits. Prior to the 2000 presidential election, investors expected Bush to have a narrower interpretation of NSR than Gore. Therefore, we use changes in stock prices to estimate the effect on profits of differences in NSR policy. Our results indicate that investors expected the average boiler to be $38 million more valuable under the Bush administration. Over the boilers’ lifetimes, the additional utilization will have increased emissions by 19 million tons of sulfur dioxide, 5.9 million tons of nitrogen oxides and 980 million tons of carbon dioxide, relative to natural gas generation.