熵指数的可分解特性及其在多元化测度中的应用

熵是对不确定性的度量,被广泛应用于多个学科领域。可分解特性是熵统计量的良好品质,它使事件的总体熵可以分解为类间熵和平均的类内熵。这种特性应用到公司多元化水平的测度中,可以有效地解决多元化指数在统计分析中的多重共线性问题。     

论会计事项的认定与会计确认

符合确认标准的会计事项是会计确认的对象,会计确认是会计事项进入财务会计系统的第一道关口,两者关系十分密切,本文对会计事项作了科学界定,并针对不同事项的认定说明其对会计确认对象、观点和时间的影响,为科学合理地确认会计事项提供了理论指导。     

闽学文化传统特质与福建企业家精神

从闽学文化传统特质对福建企业家精神生成的孕育、制约两个方面分析了福建企业家精神的文化根源。并认为，在与市场经济的冲撞相融合中，经过冲突、筛选、整合过的闽学传统文化对福建的企业家精神会产生深刻的影响，能以其博大精深的文化底蕴去完善、升华福建企业家精神，使之适合福建市场经济的发展需要。     

Measuring abnormal daily trading volume for samples of NYSE/ASE and NASDAQ securities using parametric and nonparametric test statistics

We extend prior research on the empirical properties of daily trading volume and methods to detect abnormal trading volume in two ways. We compare the performance of a nonparametric test statistic with the parametric test statistic used in prior research and we study samples of NASDAQ securities as well as samples of NYSE/ASE securities. Prior research has focused exclusively on NYSE securities. We find the nonparametric test statistic is more powerful in detecting abnormal trading volume than the parametric test statistic in both samples of NYSE/ASE and NASDAQ securities. We also document that abnormal trading volume will be detected more often in samples of NYSE/ASE securities compared to NASDAQ securities.     

多约束事件下施工进度计划控制技术

通过对影响工程进度的约束事件的分析，在横道图和关键线路网络图（CPM）的基础上，力图建立一种施工现场实用直观的进度计划控制图技术。有利于工期的控制，用其作为进度记录和报告、评价延误和变更影响的载体也非常方便，可以作为调整项目完工时间的模型。     

Transferring and Transforming Technology Education: A Study of Norwegian Teachers’ Perceptions of Ideas from Design & Technology

What happens when educational ideas cross national and cultural borders? How do teachers respond to ideas originating in a different school system and a different national culture? This article reports on an empirical study investigating the transfer of ideas from Design &; Technology as a subject in England and Wales into Norwegian schools. A sample of teachers participating in a specific project on technology teaching inspired by this subject has been studied by means of interviews and classroom observation. Results of the study show that while some elements of Design &; Technology are adopted by the teachers, essential ideas of the subject are significantly transformed. Drawing on Barnes, (1992, Teachers and Teaching: From Classrooms to Reflection (pp. 9–32), The Falmer press, London) concept of teachers' professional frames for teaching, it is shown how specific aspects of the national and educational culture have had a considerable effect on?the teachers' interpretation of the nature of technology as a subject of teaching and its place in the curriculum. The study illustrates the importance of the cultural context in how educational ideas are interpreted, reshaped and realized in schools.     

The Effects of Attributes on the Repeat Sales Pattern of Residential Property in Hong Kong

There has been copious research work on the development of house price models and the construction of house price indices. However, results in some studies revealed that the accuracy of such indices could be subject to selection bias when using only information from a sample of sold properties to estimate value movements for the entire housing stock. In particular, estimated house price appreciation is usually systematically higher among properties that change hands more frequently. It therefore suggests that the determination of important factors affecting the transaction frequency or intensity of a housing unit should be a more fundamental research question. This paper examines the possible factors that determine the popularity of residential unit by means of a repeated sales pattern. The Poisson regression model and event history analysis techniques are employed to assess the effect of attributes on transaction frequency and intensity. The event history analyses technique can take account of transaction-specific as well as time-dependent covariates, and therefore is recommended for analyzing repeated sales data in a real estate market. All transaction records during the period 1993–2000 from the Land Registry of one of the most popular residential estates in Hong Kong were used to illustrate the method. Unlike a response to favorable transaction price, good quality units do not necessarily inherently display a high transaction frequency. Rather, units of average quality are more likely to be transactionally active.     

Classical meets modern in the IDEA protocol for structured expert judgement

Expert judgement is pervasive in all forms of risk analysis, yet the development of tools to deal with such judgements in a repeatable and transparent fashion is relatively recent. This work outlines new findings related to an approach to expert elicitation termed the IDEA protocol. IDEA combines psychologically robust interactions among experts with mathematical aggregation of individual estimates. In particular, this research explores whether communication among experts adversely effects the reliability of group estimates. Using data from estimates of the outcomes of geopolitical events, we find that loss of independence is relatively modest and it is compensated by improvements in group accuracy.     

Investing against the wind: contagion during the recent financial crisis

This article examines the effect of Warren Buffett’s investment in Goldman Sachs on 24 September 2008, during the subprime mortgage crisis. Although this event is arguably perceived to be the biggest expression of confidence in the financial market during the crisis, by conducting event studies, we do not find the major counterparties of Goldman Sachs displayed positive abnormal returns. Moreover, the abnormal return is not significantly related to the counterparty connection. We have similar findings on these financial institutions’ default probabilities using credit default swap.