我国基金选股选时能力实证分析

本文运用西方基金绩效评价中较为常见的选股选时能力模型及其FF3改进模型对我国证券投资基金进行实证研究,在处理过程中考虑了不同取样频率和不同样本区间的影响.研究结果表明:(1)我国基金只存在很小程度的选股能力,而基本不存在选时能力,更没有基金同时具有选时能力和选股能力;(2)多因素改进模型与原模型相比显著提高了解释能力,说明在可能的情况下应尽可能使用多因素模型;(3)加快取样频率后基金表现出更强一些的选股能力,但在各年度内基金的选股能力有所差异.     

芳烃联合装置的设计优化

以某石化公司拟新建的450kt/a对二甲苯芳烃联合装置为个案，从技术和经济评价两方面对几个不同处理量的工艺装置的组合方案进行了设计计算，探讨了利用富含芳烃的乙烯裂解汽油作为芳烃原料的可行性和优越性。     

浅析工程建设领域推行工程担保保证制度

工程建设领域推行工程担保保证制度的必要性，是有利于规范业主行为，保证合同履约，制止无序的竞争、遏止腐败滋生，有利于与国际市场接轨等。实施工程担保保证制度的必要条件，是制定专业法规，培育专业担保公司，全面履行工程担保保证的各项职责。建设市场应推行工程担保保证制度，应认真组织好试点，拟订好试点的目标、内容和方法，选择好试点项目的承包主体。这对于保证我国建设市场的有效运行将起到良好的作用。     

油气管道完整性评价的数据支持系统

开发了管道完整性评价的数据库系统，介绍了该软件系统的结构、模块、特点、主要功能和操作界面。     

石油储量价值评价中运销成本级差模型的设计与检验

对石油资源价值评价中的4个成本因素之一——运销成本级差因素进行了讨论。文中分析了运销成本级差因素的组成因子之后．建立对之进行测算的数学模型，并就两个油田的实测数据给出了计算结果。     

新环境下电网公司财务管理对策研究

在分析电网公司理财环境发生新变化的基础上,提出了树立现代理财观念、确立正确的理财目标、树立良好的理财形象、拓展财务管理视野、构建财务管理体系的思路。     

The relationship between stock returns and volatility in international stock markets

This study examines the relationship between expected stock returns and volatility in the 12 largest international stock markets during January 1980 to December 2001. Consistent with most previous studies, we find a positive but insignificant relationship during the sample period for the majority of the markets based on parametric EGARCH-M models. However, using a flexible semiparametric specification of conditional variance, we find evidence of a significant negative relationship between expected returns and volatility in 6 out of the 12 markets. The results lend some support to the recent claim [Bekaert, G., Wu, G., 2000. Asymmetric volatility and risk in equity markets. Review of Financial Studies 13, 1–42; Whitelaw, R., 2000. Stock market risk and return: an empirical equilibrium approach. Review of Financial Studies 13, 521–547] that stock market returns are negatively correlated with stock market volatility.     

清代官绅家庭资产结构一般特征初探——以抄产档案为中心的研究

本文以清宫所藏奏折与内务府档案中所包含的大量获罪官员的抄家记录为基础,系统估算清代官绅家庭的资产结构。过去对传统社会精英阶层家庭财产和收入的理解,以田地、房屋首当其冲,偶或涉及借贷资本,但是对各自比重一直没有明确数字。我们先设计一套可以与现代家庭资产统计方式接轨的分类框架,然后介绍对家产各项内容的估价方法,并举案例说明。最后通过对185个官绅家产案例进行统计和分析,发现这些案例在金融商业类资产项下有不低的比重,同时,金玉铜磁、绸缎皮衣等各种实物也占据了相当的份额。作为传统资产形式的田房不动产一方面是投资置业首选,但另一方面当财富积累到一定水平后比重不断下降,以致在社会财富阶梯顶端已不具明显优势。     

Late for a very important date: financial reporting and audit implications of late 10-K filings

Delays in financial reports often reflect issues related to period-end accounting and audit processes. We investigate the impact of filing delays in connection with auditor characteristics on the quality of financial statements in a sample of firms that filed Form 10-K after the statutory due date. We find that late filing firms are associated with lower financial reporting quality compared to timely filing firms matched by propensity scores, where financial reporting quality is measured by the absolute value of performance-matched discretionary accruals and the probability of a late filing being restated in subsequent periods. Furthermore, we demonstrate that the adverse consequences of late filings can be largely mitigated by having a Big 4 auditor. The differential audit quality stems primarily from Big 4 auditors in large offices and is more pronounced when an auditor may need to draw on additional resources in a limited period.     

构建安定有序的和谐校园

构建和谐社会是国家富强、名族振兴、人民幸福的重要保证。构建安定有序的和谐校园是关系到师生的生命和财产,关系到教学秩序的稳定,关系到学校及社会稳定和谐的大事。