Irrational exuberance in the Chinese iron ore market?

The rapid run-ups in the Chinese iron ore market in the first half of 2016 have sparked much concern about the appearance of speculative bubbles in this market among many market analysts. Using a recently developed bubble testing procedure, we confirm that there indeed existed periods of irrational exuberance in the Chinese iron ore market. However, most of the bubble periods are short-lived, reflecting the market’s ability to quickly respond to price deviations unjustified by fundamentals. The longest bubble period occurred in mid-2014, corresponding to a period of relatively low trading volume. Using a fractional probit model, we find evidence consistent with the hypothesis that market liquidity may play a role in bubble occurrences.     

流动性补偿、信息不对称与市场预期:央票发行对央票交易成本的影响分析

基于对经济正常波动时期与金融危机时期央票发行对央票交易成本的影响分析,结论表明央票交易成本中流动性成本显著高于信息不对称成本。在经济正常波动时期,央票发行顺应市场预期,央票发行并未引起流动性成本和信息不对称成本的显著变化;在金融危机时期,央票发行出乎市场预期,央票发行引起信息不对称成本显著增加,指令流自相关系数显著降低。而央票市场的信息不对称成本,主要来源于机构投资者对公开信息的解读不同。     

After-market liquidity and IPOs underpricing： Evidence from Shari＇ah and non Shari＇ah-based firms

The underpricing of initial public offerings （IPOs） is generally explained with asymmetric information and risk. We complement these traditional explanations with a new theory proposed by Ellul and Pagano （2006） where investors worry also about the after-market illiquidity that may result from asymmetric information after the IPO. The less liquid the after-market is expected to be, the larger will be the IPO underpricing. The samples are the 41 IPOs carried out between 2001-2005. The samples are 7 Shari＇ah-based firms and 34 non Shariah-based firms. Shariah-based firms are those included in Jakarta Islamic Index （JII）, at least one period （one semester）. Regression results show that the relationship between after-market liquidity and underpricing is insignificant unless we use trading frequency as proxy for liquidity for non Shariah-based firms.     

Capital liquidity and residents’ consumption decision: An asymmetry analysis of economic prosperity

Among the current literatures that discuss the influence exerted on residents’ consumption behavior by capital liquidity, some often independently decide the demarcation point of the liquidity restriction that affects residents’ consumption behavior, without taking into account when the economy is flourishing whether residents will be influenced by the restriction of the liquidity that their consumption behaviors can not be fully carried out. We introduce a threshold model which varies according to the actual GDP and other financial indicators (money supply, average stock index and balance of bank loans) to discuss residents’ consumption behavior in China under different economic states. The empirical results show that when the economy flourishes or resuscitates, residents’ income of the same period have not notable influence on their consumption, which suggests that residents’ consumption behavior does not considerably change according to the fluctuation of the current income, but conforms with the constant income-life cycle hypothesis. Moreover, two estimated values 0.7504 and 0.8597, as economic boom measures, all fall in the boom stable stage—basically consists with the early-warning index of the macro-economy boom issued by National Bureau of Statistics of China. It shows that the macro-economic boom is not notablely influenced by capital liquidity, so is residents’ consumption behavior.     

股改降低了上市公司代理成本吗?——来自中国A股市场的经验证据

以我国A股上市公司为研究样本,以代理成本为研究对象,对股改之于代理成本的影响进行实证分析发现：股改的完成并没有显著地影响代理成本,控股类型仍然是影响代理成本的主要因素,股权分置改革对于企业代理成本的积极影响不能一蹴而就,股改完成后我国还需要在法规、制度、市场以及公司治理结构等方面进行全方位的配套改革。     

股票流动性、公司治理与企业经营绩效——基于退出威胁与锁定效应的理论与实证研究

文章采用博弈论的分析框架探讨了股票流动性的两大效应,即"退出威胁"与"锁定效应".研究表明,当股票流动性较低时,机构投资者的退出策略不可行,被迫参与上市公司的监督行为,即表现为"锁定效应",且股票流动性越低,这一效应越明显.然而,随着股票流动性的进一步增强,机构投资者的退出策略开始变得可信,从而可以通过一定的触发策略迫使管理者选择尽职,因而表现为"退出威胁",且股票流动性越高,这一效应越明显.因此,总的说来,股票流动性与经营绩效之间会呈现一个先减后增的U型关系.文章采用高频交易数据构造相对有效价差与相对报价价差衡量股票流动性对上述假说进行了检验,其实证结论支持了文中的假说.     

习惯形成、不确定性、流动性约束与居民消费——基于省际动态面板数据的实证分析

文章利用1998-2008年的城乡省际面板数据,建立包含习惯形成、不确定性和流动性约束在内的动态面板模型并对其进行实证分析.实证分析的结果表明习惯形成对于城乡居民的消费具有显著性影响;不确定性对于城镇居民的消费增长具有显著的影响,对于农村居民的影响不显著;城乡居民的消费具有过度敏感性;城镇居民的实证结果支持"前景理论",不支持流动性约束理论,农村居民的实证结果支持"短视行为"理论.     

内幕交易监管、投资者交易策略与市场利益分配

当证券市场实施内幕交易监管后,投资者的交易策略可能会发生改变,市场利益的分配也会发生相应的改变。文章在一个实施内幕交易监管的框架下,对内部人的利益分配进行了研究,发现内部人的利益不仅与内幕交易监管力度和执行能力有关,还与市场流动性、交易者类型、信息准确度和市场波动性等因素密切相关。同时,由于监管有效性幻觉和内部人分层现象的存在,内部人利益在一定时期内还可能出现反常变动。     

消费信贷对消费影响作用的实证研究

本文基于美国1959—2009年近60年的消费信贷和个人消费支出的月度样本数据,实证研究了消费信贷对消费的影响作用。结论显示,消费信贷对消费具有显著的拉动作用。本文为我国大力发展消费信贷以拉动消费和经济增长提供了有力的实证研究支撑。     

我国货币流动性过剩对资产价格的影响

本文选用广义货币／国内生产总值来衡量货币流动性过剩指标．通过对房地产价格、股票市场价格、债券市场价格和基金市场价格采用单位根检验来验证流动性过剩与资产价格之间的协整关系及格兰杰因果关系．并用基于向量自回归模型的脉冲响应解释各项资产价格对流动性冲击的反应．结果显示这些价格都不同程度地受到流动性过剩的影响．但货币流动性对房地产市场的影响要比金融市场的影响更加明显．并且同时也分析了债券市场和基金市场在金融市场的重要地位．结果显示加入基金市场与债券市场可以提供数据分析的准确性以及实证结论与现实的相符程度。