Commonality in liquidity among Middle East and North Africa emerging stock markets: Does it really matter?

This study investigates commonality in daily liquidity among 11 emerging stock markets from the Middle East and North Africa from January 2005 to June 2017. First, we test long memory in liquidity in these markets. Second, we select a number of factors eligible to affect liquidity commonality among local, regional and global factors. We find that regional and US factors do not explain liquidity variations in all the markets that exhibit low sensitivity to external factors. Our results are robust to the use of alternative proxies. The analysis in sub-periods confirms our results showing that most markets are not very sensitive to fluctuations and external shocks of liquidity. For international investors, stock markets in the Middle East and North Africa present an opportunity for further diversification, as these markets exhibit weak correlations between them and with the global market with regard to liquidity.     

Does algorithmic trading harm liquidity? Evidence from Brazil

This paper provides the first evidence of algorithmic trading (AT) reducing liquidity in the Brazilian equities market. Our results are contrary to the majority of work which finds a positive relationship between AT and liquidity. Using the adoption of a new data center for the B3 exchange as an exogenous shock, we report evidence that AT increased realized spreads in both firm fixed-effects and vector autoregression estimates for 26 stocks between 2017 and 2018 using high-frequency data. We also provide evidence that AT increases commonality in liquidity, evidencing correlated transactions between automated traders.     

Mutual Fund＇s Behavior on Stock Liquidity： Empirical Results from Chinese Security Market

This paper studies the relationship between fund investment and market liquidity by using Chinese security market data. The results show that, among several measures of market liquidity, the indexes based on volume, such as turnover and market depth, have a deeper impact on fund investment decision. Furthermore, the relationship between security liquidity and fund investment varies when market status is taken into account. On the other hand, fund investments have a negative effect on security liquidity measured by market width, while have a positive effect on other liquidity measures. The authors attribute the results to herding behavior of fund investment.     

Investor heterogeneity and commonality in stock return and liquidity

This paper examines how the trading activities of different investor types are related to common return and liquidity movements. Using a unique dataset, we decompose the daily return and liquidity of individual stocks into price impact components attributable to trades of institutional investors and retail investors. We then investigate the variation of each component relative to market-wide return and liquidity. We show that institutional trades contribute more than retail trades to liquidity commonality. However, retail trades contribute more strongly to return co-movement. The incremental contribution of retail trades to the co-variability of stock returns is more pronounced for firms with high information asymmetry.     

封闭式基金的市场流动性研究

本文在给出一个改进流动性指标的基础上 ,利用该指标对封闭式基金的市场流动性进行了分析。研究发现 :封闭式基金市场流动性不存在周内效应 ,周内也无显著的变动模式 ;封闭式基金流通股本规模对市场流动性有显著影响 ,市场偏好次小盘基金 ;封闭式基金市场流动性总体上对基金折价没有显著影响。     

Do voluntary disclosures of bad news improve liquidity?

Can managers improve market liquidity and lower the cost of capital by providing voluntary earnings guidance? This study examines the impact of profit warnings on market liquidity and finds that voluntary disclosure of bad news actually improves market liquidity. By conducting an empirical study over the period 1995–2010 on NYSE, NASDAQ and AMEX listed firms, we find that firms that issue profit warnings show enhanced market liquidity during the post-announcement period. We show that profit warnings reduce information asymmetry and lower bid-ask spreads and increase trading volumes. These results are invariant to daily (short run) and monthly (long run) data after controlling for firm specific attributes. The results have major corporate policy implications. By voluntarily disclosing negative earnings guidance by managers, firms will experience significant improvement in market liquidity, thereby lowering the cost of capital. Our results are even more profound for firms that release bad news with extremely negative stock market impact. In other words, voluntary disclosure of bad news is good for market liquidity.     

Pricing in the Norwegian Interbank Market – the Effects of Liquidity and Implicit Government Support

We investigate the effects of central bank liquidity and possible implicit government guarantees against default on Norwegian overnight interbank interest rates. We conduct an econometric study of these interest rates over the period 2006–09, which includes the sharp fall in interbank trading during the financial crisis. Our findings suggest relatively lower funding costs for banks of systemic importance, particularly for banks with many and valuable linkages to other banks. Moreover, interest rates are found to depend not only on overall liquidity in the interbank market, but on its distribution among banks as well. There is also evidence of stronger effects on interest rates of systemic importance, creditworthiness and liquidity demand and supply factors during the financial crisis.     

On illiquidity of an emerging sovereign bond market

This study offers an analysis of a sovereign bond market in an emerging country, Turkey, and its illiquidity. We employ the Nelson-Siegel model to generate a term structure for interest rates directly from daily bond price quotes in the Turkish market. We take the noise measure, which is the byproduct of term structure estimation, as a proxy for market-wide illiquidity. Our results show that this noise measure can capture the illiquidity in the Turkish fixed-income market from global financial turbulence as well as local dynamics. Inflation uncertainty and sentiment are the major macro drivers of liquidity crunches. It has also become clear that liquidity in an emerging market such as Turkey in the aftermath of the 2008 crisis has been driven by global forces, however, since 2013 local factors have taken over. This apparent decoupling in liquidity between a major emerging market and global markets followed the approaching end of quantitative easing and a rise in economic turbulence in the country since then.     

What drives the liquidity premium in the Chinese stock market?

This paper examines the dynamics of the liquidity premium in the Chinese stock market by adopting a multivariate decomposition approach to measure the individual contributions of various driving forces of the premium (such as firm size, idiosyncratic volatility, and market liquidity betas). By employing a wide range of liquidity measures, we show that liquidity premium is generally significant in the Chinese stock market. Furthermore, this premium is increasing in recent years starting from 2011; this observation is different from the United States market, in which the premium has declined over the years. Moreover, the multivariate decomposition approach highlights several asset pricing factors as the main driving forces of the premium. Based on the Amihud liquidity measure, the decomposition approach indicates that the size factor contributes 45–65% to the liquidity premium. However, the measure based on turnover suggests that idiosyncratic volatility accounts for at least 60% of the liquidity premium. In contrast, the global market liquidity beta does not significantly contribute to the premium. However, there is some evidence that the local market liquidity beta has become more significant in its impact on the premium during the period from 2011 to 2015. Our results imply that the findings on the liquidity premium in the Chinese stock market could be sensitive to the liquidity measure used and period of analysis.     

证券市场流动性及其影响因素研究

流动性是证券市场运行质量的重要衡量指标。文章对证券市场流动性内涵进行归纳与总结,重新定义流动性内涵,认为证券流动性是证券资产与现金资产的相互转换能力,并对流动性与流通性的内涵进行了辨析;同时,文章还对影响证券市场流动性的因素加以总结,结果发现,证券交易特征、交易成本、市场竞争程度、交易机制与市场透明性等因素显著影响市场流动性水平。     

Retail investors’ trading and stock market liquidity

The paper investigates the relation between retail investors’ participation in trading and aggregate stock market liquidity. The findings show a positive and significant relation between retail investors’ trading and stock market liquidity. Examination of the determinants of retail investors’ trading reveals that, on average, retail investors with more diversified trading activity tend to trade when liquidity is higher, the frequency of their arrival to the market is not affected by the level of liquidity, and retail investors are willing to trade at a lower liquidity level as sellers than as buyers. Moreover, retail investors’ trading does not create price noise at the aggregate market level. Overall, the evidence suggests that retail investors contribute to market quality.     

我国债券市场流动性的现状及对策浅识

债券市场是金融市场的重要组成部分,债券流动性作为具有能够迅速低市场成本交易的能力,是债券市场发展必不可少的条件。近年来我国债券市场发展迅速,但由于交易平台、交易制度、交易品种和投资者结构等方面的原因,导致我国债券市场的流动性发展缓慢。本文通过对债券市场流动性现状的分析,找出债券市场流动性缺失的原因,并结合我国的实际情况提出相应的策略。     

我国沪深证券市场流动性实证研究

流动性是一个市场的生命力所在。一个流动性好的市场才能很好的满足投资者的交易需求,减少投资者流动性风险是市场应该提供的功能之一。随着我国资本市场的逐步发展和成熟,投资者越来越注意到市场流动性的重要性。如何准确的界定流动性,如何用一系列的指标体系,来衡量一个市场的流动性,是理论界和市场投资者都很关注的问题。国内外对流动性的研究也很多,本文在借鉴前人研究成果的基础上,提出了自己对于流动性测量的一种观点,通过建立一个基于收益率和相对交易量基础之上的模型,来探讨关于市场流动性的问题。     

Toward an understanding of market resilience: market liquidity and heterogeneity in the investor decision cycle

During liquidity shocks such as occur when margin calls force the liquidation of leveraged positions, there is a widening disparity between the reaction speed of the liquidity demanders and the liquidity providers. Those who are forced to sell typically must take action within the span of a day, while those who are providing liquidity do not face similar urgency. Indeed, the flurry of activity and increased volatility of prices during the liquidity shocks might actually reduce the speed with which many liquidity providers come to the market. To analyze these dynamics, we build upon previous agent-based models of financial markets, and specifically the Preis et. al (Europhys Lett 75(3):510–516, 2006) model, to develop an order-book model with heterogeneity in trader decision cycles. The model demonstrates an adherence to important stylized facts such as a leptokurtic distribution of returns, decay of autocorrelations over moderate to long time lags, and clustering volatility. Consistent with empirical analysis of recent market events, we demonstrate the impact of heterogeneous decision cycles on market resilience and the stochastic properties of market prices.     

成交市值表示的市场流动性模型

本文从市场流动性的定义出发，从证券市场宏观交易角度，依据考察的交易时间长短不同致使新公布的证券市场信息对均衡价格产生影响，最终推导出以成交市值变化率表示的买方流动性和卖方流动性。     

Liquidity skewness premium

Risk-averse investors may dislike decrease of liquidity rather than increase of liquidity, and thus there can be asymmetric preference in variation of liquidity. In addition, investors are likely to avoid extreme illiquidity. This paper examines whether the skewness of an individual firm’s liquidity capturing asymmetric distribution of liquidity and extreme illiquidity is priced in the US stock market. Using the skewness of the daily price impact, we find that it is positively priced, and this positive relation is significant up to eight months after controlling for other effects. Moreover, we find our results remain significant with the skewness of alternative liquidity measures, i.e., dollar-volume, and turnover.     

投资者结构模式变迁与市场流动性风险

本文研究了市场流动性风险与投资者结构模式之间的关系。随着机构投资者的不断发展壮大,我国投资者结构模式发生了重要转变,然而新的投资者结构模式下,市场流动性的波动结构是否有所不同？本文以流动性水平变化率为研究对象,构建了包含虚拟变量的TGARCH模型对其波动方程进行拟合,研究发现：机构投资者壮大后市场流动性风险显著降低;机构占主导后市场流动性风险受新信息的影响权重较之前增大,而旧有信息对流动性风险的影响相比以前减小。     

中小企业板市场流动性问题研究

流动性是资本市场或者说整个金融市场的重要特征。本文对其内在涵义、基本特征进行界定与刻画;进而辨析了几对容易混淆的相关范畴,阐释中小企业板市场流动性研究的理论意义;对其影响因素予以剖析,从中提炼出对策与建议。     

European quanto option pricing in presence of liquidity risk

In this paper, we study the pricing problems of the European quanto options in which the underlying foreign asset is in imperfectly liquid markets. First, we assume that the dynamics of the underlying foreign asset price are affected by market liquidity and propose a liquidity-adjusted quanto model. This allows for the effects of market liquidity on European quanto option pricing. And then we derive the analytical pricing formulas for four different types of European quanto options. Finally, we empirically investigate the pricing performance of our proposed model with a European quanto construction involving the SSE 50 ETF, as the underlying asset, and the CNY/HKD exchange rate. Empirical results demonstrate that the pricing accuracy of the proposed model is markedly superior to that of the Black-Scholes quanto model. In other words, allowing for liquidity risk in the framework of European quanto option pricing can make markedly improvements in fitting the real market data. Particularly, the improvement rate is high for medium-term and out-of-the-money options. Moreover, these results are robust for different liquidity measures.     

“次贷危机”背景下沪港股市溢出效应研究

文章对美国"次贷危机"爆发后沪港股票市场在波动性与流动性方面的溢出效应进行实证研究。研究结果表明,随着次贷危机的蔓延与深化,沪港股市的波动性溢出与流动性溢出呈现不同特征。在危机初期,仅存在上海股市流动性单向溢出到香港市场;在危机后期,香港市场的流动性与波动性均单向溢出到上海市场。