投机倾向下的股权结构变迁

多年来我国上市公司的股权结构经历了数次大规模调整 ,在公司上市治理的过程中一再强调有效的股权结构 ,但实际治理情况不佳。其原因在于股权结构变迁是在政府诱致性政策下完成的 ,股权结构剔除非流通股成份后 ,投机者机会主义行为是构成现行股权模式的主要因素 ,由此形成的股东缺乏对公司治理机制的“关怀” ,所以提出股权结构要具有对生产要素的激励与约束能力的建议。     

Libor Market Models versus Swap Market Models for Pricing Interest Rate Derivatives: An Empirical Analysis

We empirically compare Libor and Swap Market Models for thepricing of interest rate derivatives, using panel data on pricesof US caplets and swaptions. A Libor Market Model can directlybe calibrated to observed prices of caplets, whereas a SwapMarket Model is calibrated to a certain set of swaption prices.For both models we analyze how well they price caplets and swaptionsthat were not used for calibration. We show that the Libor MarketModel in general leads to better prediction of derivative pricesthat were not used for calibration than the Swap Market Model.Also, we find that Market Models with a declining volatilityfunction give much better pricing results than a specificationwith a constant volatility function. Finally, we find that modelsthat arechosen to exactly match certain derivative prices areoverfitted; more parsimonious models lead to better predictionsfor derivative prices that were not used for calibration. JELClassification: G12, G13, E43.     

从企业产权制度建设上推进企业治理结构的完善

公司治理结构从某种意义上可以说是公司法人产权制度的组织形式,公司法人产权的有效安排是公司治理结构有效性的基本前提。由于我国的企业改革基本上是沿着各种形式的委托－－代理思路展开的,现代企业制度的一个基本特征,即区别于通常所说的古典企业的突出特点,恰在于产权方面的委托－－代理,因而考察我国现代企业制度建设,把企业法人产权与企业治理结构统一起来加以分析,便有着重要的理论意义和实践价值。     

Financing enterprise development in sub-Saharan Africa

This paper examines some critical gaps in the financial infrastructurein sub-Saharan Africa, which have contributed to the poor performanceof productive investment by private agents. It first analysesthe performance of financial systems, encompassing both formaland informal financial sectors, in relation to the changingpolicy environment, and key features of the financial marketstructure. It then identifies those gaps in financial servicesthat have been particularly detrimental to private investment,enterprise growth and transformation. Finally, the paper considerspolicy implications drawn from East Asian experiences with respectto financial policies, institutional arrangements and marketintegration measures for financing enterprise development.     

债务期限结构和区域因素——来自中国上市公司的经验证据

本文采用参数和非参数检验方法经验检查中国上市公司注册地所在区域因素与公司债务期限结构之间关系。研究发现：（1）不同区域之间的债务期限结构存在系统性差异：（2）区域因素能解释公司债务期限结构3％左右的变异；（3）中部地区的债务期限显著高于东部、西部地区的债务期限；（4）市场化程度高、经济发达的地区具有相对低的债务期限。     

股权分置改革的效率及其影响因素

本文选取全面股改前40批939家公司作为有效样本,以超常收益率作为基础度量指标,利用事件研究法,探讨了上市公司股权分置改革的效率,通过对比不同批次、不同交易所和不同板块股权分置改革效率的差别,深入研究了股改效率的影响因素。研究结果表明:股权分置改革对证券市场和上市公司市场价值均产生了积极的影响。高质量公司较多的批次存在较高的超常收益率,深市股东平均要比沪市股东获得较高的超常收益,中小企业板的平均超常收益率要远远大于主板市场。     

空调器室外机防踩踏包装的结构设计

本文详细论述了空调器室外机具有防踩踏功能包装结构的设计方案,该方案解决了如何进行防踩踏包装结构设计的问题,并通过实例证实了其可行性。其结论表明,具有防踩踏功能的包装结构不仅功能好,而且成本低,具有很大的参考价值。     

Intended and unintended termination of international joint ventures

This study proposes that international joint ventures (IJVs) are terminated either when the initial purposes of the formation of the IJV have been achieved (intended termination), or when unanticipated contingencies that emerge in the external, internal, or inter‐partner conditions after the establishment of the IJV impede the continuation of its operation (unintended termination). Our study examines the factors that affect intended and unintended termination and the longevity of IJVs. The findings show that approximately 90 percent of all IJV terminations are unintended and 10 percent intended, and that the frequency of intended termination and unintended termination varies noticeably depending on the initial purposes of formation. This suggests that the termination of IJVs is significantly contingent on their formation. The findings also show that the longevity of IJVs varies according to the initial purposes of formation, the initial conditions under which the IJV is formed, and the types of unanticipated contingencies that it encounters. The key theoretical issues and practical implications of the distinction between the intended and unintended termination of IJVs are also discussed. Copyright © 2007 John Wiley & Sons, Ltd.     

信贷市场、资本市场与我国的储蓄投资转化率

储蓄向投资转化是金融体系最基本的功能.本文首先从理论上论证信贷市场、资本市场在储蓄投资转化过程中是竞争又合作的动态互补关系,接着以灰色关联度的数量方法论证我国目前正处于金融体系历史演变阶段中的弱市场导向阶段,信贷市场仍然在储蓄向投资转化的过程中占主体地位,以股市为代表的资本市场对储蓄投资转化率的影响较小,但已呈现出向上发展的态势.我国应在加大银行部门发展的基础上大力发展资本市场,并从法律政策、政府监管等方面进行完善,充分发挥资本市场的作用,建立适合中国自身特点的金融结构.     

上市公司股权结构对企业价值的影响分析

本文基于大股东所属产权类型，从理论和实证两方面就我国上市公司股权结构对企业价值的影响进行研究，试图克服目前国内相关研究“股权分类不彻底、股东持股比例计算方法不合理、ROE度量企业价值不合理”的缺陷。研究结果表明，第一大股东持股比例对企业价值的影响呈倒U形态；较之于其他类型，私营产权控股股东对企业价值的影响要显著很多。本文还分析了股权分置改革后上市公司股权结构对企业价值影响的新变化。