市场时机与中国上市公司投资行为——基于股权融资渠道的实证检验

文章选取中国A股市场2004-2009年面板数据,实证检验了中国市场时机影响公司投资的股权融资渠道,并深入分析了市场时机影响上市公司投资的机理过程及经济后果。结果表明,中国资本市场存在显著市场时机影响公司投资的股权融资渠道,通过分析市场时机对公司投资—现金流敏感度的影响,发现股权融资渠道在缓解融资约束公司投资不足的同时也造成了非融资约束公司的过度投资。最后,实证检验表明,市场时机对上市公司投资效率的影响显著为负。     

债务融资期限结构与融资效率的实证研究

企业的融资效率分为资金筹集过程中的宏观融资效率和资金使用过程中微观融资效率.从债务融资期限差异的角度出发,通过实证检验不同期限的银行信贷资金对企业微观融资效率的影响可以发现.短期债务资金和融资效率显著负相关,并低于长期债务资金的融资效率,不支持委托代理理论认为的短期债务资金能更有效地降低代理成本、提高资金使用效率的结论.     

对我国上市公司债务约束功效的实证检验和分析

文章对负债的抑制过度投资的约束功效,针对我国国有控股上市公司的现实情况,提出了负债不能约束过度投资的假设.根据CSMART数据库的数据,利用统计描述和横截面的分析,得出了目前我国国有控股上市公司的负债没有对过度投资产生明显的约束功效,证明了假设的正确性.     

深圳股票市场渐进有效性实证研究

自Fam提出有效市场假说(EMH)开始，有关市场效率研究的成果层出不穷。国内对中国股市是否达到弱型效率争论较大，否定和支持者基本各半。已有研究大多忽略了分析市场效率的动态演进过程，而渐进有效性检验方法可弥补这一缺陷。引入该方法对深圳股市进行实证检验发现，深圳股市外在效率经历了一个渐进有效的动态演进过程，虽然市场效率朝着有效的方向演进，但仍未达到弱型效率。此结论对投资者、上市公司、政府的决策均有参照作用。     

会计稳健性与投资效率——来自中国证券市场的经验证据

会计稳健性是财务报告的一项重要特征,而投资效率则是企业生存和发展至关重要的制约因素,稳健的会计政策对企业投资效率的影响值得深入探讨.通过实证研究发现,会计稳健性越好的企业,在投资机会下降时,会更及时地削减投资,即投资效率更高.     

中国债务抵押债券定价模型及实证分析

利用KMV模型估算出各债务人的违约概率,并用Copula函数分别估算出债务人之间的违约相关系数,模拟出各债务人的违约时点,在此基础上对债务抵押债券各系列进行定价;进一步应用Gaussian Copula和Student-t Copula对中国金融市场上发行的信贷抵押债券08招元一期产品各系列价差进行实证研究,结果发现两种Copula方法在估计优先A1级系列与B级系列时出现低估现象,而在估计优先A2级时出现高估;但一般都在5个基点的可接受误差范围之内。这表明该方法可以应用于信贷资产支持证券的定价,并可对高收益级的到期收益率进行估计。     

价值投资与市场效率

随着经济发展周期或市场环境的变化，证券市场总是处于起伏涨跌的变化过程中，投资理念的不断转换和变迁也始终相伴其中，这一点，中外证券市场概不例外。考察美国证券市场，其投资理念的变迁具有明显的时代特征，如19世纪的铁路股狂潮，20世纪早期的钢铁股和汽车股热……     

Market Efficiency and Rationality in Property Investment

This article applies the present-value model to investigate property market efficiency in the United Kingdom. The existence of rational bubbles in the U.K. property market is ruled out at conventional statistical significance levels, though the U.K. property market appears not efficient. In addition, there are variations among the office, retail, and industrial property markets. The rejection of the present-value model implies a price discovery mechanism may exist for property investment.     

我国银行间同业拆借市场有效性分析

从市场内部和外部两个角度实证分析银行间同业拆借市场的有效性,结果表明:银行间同业拆借市场利率服从随机游走过程,而且相互间存在协整关系,从市场内部可以判断市场是有效的;银行间同业拆借市场与债券回购市场同期限的利率具有正向的协整关系,两个市场的利率具有趋同性,从市场外部判断市场也是有效的.银行间同业拆借市场的有效性对我国基准利率的选择、利率市场化以及货币政策的有效性等方面具有重要启示.     

The Q Theory and the Swedish Housing Market—An Empirical Test

We argue that major changes in economic policy have resulted in a more market driven demand for housing investment in Sweden, due to policy changes at the end of the 1980s and the beginning of the 1990s. Tobin’s transparent Q theory is the investment theory used. For the last period of the sample (1993–2003 quarterly data), our results indicate that there exists a high degree of correlation between the Q ratio and the (logarithm of) two different variables for housing investment. An error correction regression model, controlling for structural breaks, also indicates that a stable long-run relationship could be detected for the logarithm of building starts and the Q ratio between 1993–2003, but not between 1981–1992.      

Investment Strategies and Market Structure: An Empirical Analysis of Bank Branching Decisions

This paper analyzes the relationship between the competitive environment faced by depository institutions and the decisions these institutions make regarding the size of their branch networks. Specifically, we consider branches as a sunk investment that potentially increases utility for consumers and examine how local competition and product differentiation affect firms’ decisions regarding whether to make such investments. We account for endogenous market structure using an equilibrium structural model, which corrects for bias caused by correlation in the unobservables associated with market structure and branching activity. We estimate the model using data from 1,882 concentrated rural markets. Our results demonstrate the importance of accounting for market structure and product differentiation, and are consistent with a potential entry-deterring effect of bank branch investments.     

An Empirical Investigation of Market Structure, Efficiency, and Performance in Property-Liability Insurance

This study examines the relationships among market structure and performance in property‐liability insurers over the period 1992–1998 using data at the company and group levels. Three specific hypotheses are tested: traditional structure‐conduct‐performance, relative market power, and efficient structure (ES). The results provide support for the ES hypothesis. The ES hypothesis posits that more efficient firms can charge lower prices than competitors, enabling them to capture larger market shares and economic rents, leading to increased concentration. Both revenue and cost efficiency are used in the analysis, and this is the first study to use revenue efficiency in this type of analysis. The results for the sample period as a whole and by year are consistent. The overall results suggest that cost‐efficient firms charge lower prices and earn higher profits, in conformance with the ES hypothesis. On the other hand, prices and profits are found to be higher for revenue‐efficient firms. Revenue X‐efficiency is derived from activities such as cross‐selling and may rely heavily on the use of detailed information from customer databases to identify potential customers. The implications of this research are that regulators should be more concerned with efficiency (both cost and revenue) rather than the market power that arises from the consolidation activity taking place in insurance.     

新三板挂牌公司融资效率实证分析

以资产总额、主营业务成本、财务费用、资产负债率作为投入指标,总资产周转率、净资产收益率、主营业务收入增长率为产出指标,运用DEA方法,对597家新三板挂牌公司2012-2014年的综合技术效率、纯技术效率和规模技术效率进行实证分析.结果显示:我国新三板挂牌公司的融资效率逐年提高,然而融资效率普遍偏低.进而从经济环境和企业自身两个方面,分析了融资效率偏低的原因,并从政府和企业两个角度提出了对策建议.     

我国投资银行业市场结构、规模与绩效实证研究

本文的实证研究表明,市场结构、行业规模以及市场整体收益率对我国投资银行业的利润率有着很强的解释能力,三个因素对于净资产收益率的解释能力超过98%。从影响的相对水平来看,集中度的影响要大于市场收益的影响,规模的影响与集中度、市场收益的影响相反。进一步研究还表明,尽管行业资产规模与净资产收益率的时间序列显示随着行业资产规模的增加,我国证券公司的净资产收益率呈现出不断下降的特征,但这并不意味着我国投资银行业是规模不经济的。有关规模经济的横截面分析数据表明,现阶段我国证券公司的规模与其绩效之间并不存在着明显的关系,既没有显示出规模不经济,也没有显示出规模经济。     

Empirical Research on Debt Maturity Structure and Governance Efficiency in Automotive Listed Companies

采用分量回归模型,以2006~2009年间沪深两市汽车行业上市公司的面板数据为样本,选取核心资产收益率、总资产收益率、净资产收益率、市账比和每股净资产为度量公司治理效率的替代变量,考察债务期限结构对公司治理效率的影响。实证结果显示,债务期限结构对核心资产收益率、净资产收益率和每股净资产具有显著的负向影响,表明长期债务的使用比例显著影响公司治理效率。     

An Empirical Analysis of the Pricing of Collateralized Debt Obligations

We use the information in collateralized debt obligations (CDO) prices to study market expectations about how corporate defaults cluster. A three‐factor portfolio credit model explains virtually all of the time‐series and cross‐sectional variation in an extensive data set of CDX index tranche prices. Tranches are priced as if losses of 0.4%, 6%, and 35% of the portfolio occur with expected frequencies of 1.2, 41.5, and 763 years, respectively. On average, 65% of the CDX spread is due to firm‐specific default risk, 27% to clustered industry or sector default risk, and 8% to catastrophic or systemic default risk.     

上交所国债市场波动率的实证研究

通过对上海证券交易所国债市场指数收益率序列波动特征的研究发现,上交所国债市场指数收益率不但具有非正态性和条件异方差的特点,还具有长记忆性特征.实证研究表明,FIGARCH(1,d,1)模型能够较好地刻画上交所国债指数收益率波动的特征.     

基于澳大利亚房地产信托基金市场的VaR模型实证分析

房地产信托基金(REITs)代表着目前全世界房地产领域最先进的生产力.澳大利亚房地产信托基金市场(A-REITs)在金融危机期间表现相对平稳.本文通过介绍A-REITs市场情况,从微观角度采用VaR风险模型方法,测出A-REITs整体市场和特定个体风险水平.在此基础上,建议中国房地产信托基金行业(C-REITs)统一市场风险计量工具,建立相关制度控制内外部风险,为C-REITs试点健康快速发展提供参考.