Audit opinions and information asymmetry in the stock market

This study analyses the relationship between the content of the audit reports and information asymmetry levels in the stock market for a sample of Spanish firms. By implementing an association study, we document (1) that firms with audit qualifications show higher information asymmetry levels than those with unqualified opinions; (2) firms with non‐quantified qualifications show higher informational asymmetry than firms with quantified qualifications; and (3) we find a stronger effect on the level of informational asymmetry in the case of going concern qualifications. Our findings suggest that audit qualifications reporting more uncertainty on firm accounting statements result in higher adverse selection risk.     

Trade credit and stock liquidity

This study documents that firms with higher stock liquidity are more willing to extend trade credit and are less reliant on trade credit financing. This finding is robust to a battery of control variables, alternative measures of stock liquidity, different fixed effects, an instrumental variable approach, and a difference-in-difference approach using tick-size change as a quasi-natural experiment that exogenously increases stock liquidity. Subsample analyses show that the relation between trade credit policies and stock liquidity is more pronounced for firms that are financially constrained, dependent on external financing, and restricted by short-term debt. Overall, the evidence presented in this paper indicates that access to the equity market has important implications on firms' trade credit policies.     

Privatization and stock market liquidity

This paper shows that share issue privatization (SIP) is a major source of domestic stock market liquidity in 19 developed economies. Particularly, privatization IPOs have a negative effect on the price impact – measured by the ratio of the absolute return on the market index to turnover. This result is robust to the inclusion of controls for other observable and unobservable factors, having also considered the endogenous nature of the decision to privatize.     

Asset liquidity and stock returns

We document the significant predictive power of firms' asset liquidity in the cross section of subsequent stock returns. The annual return spread between portfolios featuring the highest and lowest levels of asset liquidity is significantly positive. Our proposed measure of asset liquidity outperforms those measures developed by Gopalan et al. (2012) in predicting returns. The asset liquidity anomaly also provides significantly positive alphas when controlling for the asset pricing factors in the Fama and French (1993) three-factor model and the Carhart (1997) four-factor model. Asset liquidity exhibits strong return forecasting power even after controlling for acknowledged cross-sectional determinants of return. The positive relation between asset liquidity and future returns tends to be stronger for firms with greater asset productivity, higher quality cash flow and lower capital investment.     

CEO incentive compensation and stock liquidity

Review of Quantitative Finance and Accounting - We document that the CEO pay-for-performance incentive positively predicts firm’s stock liquidity. The evidence is consistent with the...     

Annual report readability and stock liquidity

We examine the effect of annual report textual complexity on firms’ stock liquidity. Using techniques from computational linguistics, we predict and find that less readable filings are associated with lower stock liquidity. Our study provides evidence that difficult‐to‐read annual reports hinder investors’ ability to process and analyze information contained in corporate annual reports, reducing thereby their willingness to trade which decreases stock liquidity. Our findings are robust to a battery of sensitivity tests, including endogeneity, use of alternative estimation techniques, and use of alternative liquidity and readability proxies.     

Exchange trading rules and stock market liquidity

We examine stock exchange trading rules for market manipulation, insider trading, and broker–agency conflict, across countries and over time, in 42 stock exchanges around the world. Some stock exchanges have extremely detailed rules that explicitly prohibit specific manipulative practices, but others use less precise and broadly framed rules. We create new indices for market manipulation, insider trading, and broker–agency conflict based on the specific provisions in the trading rules of each stock exchange. We show that differences in exchange trading rules, over time and across markets, significantly affect liquidity.     

对我国股市流动性问题的几点思考

本文提出换手率指标不能用来衡量股市流动性,并按国际市场和学术界对流动性的界定对我国股市流动性进行了分析,得出我国股市流动性在国际上处于较低水平;并分析了造成这种状况的原因主要有市场结构、交易机制和监管环境等方面;最后提出了改善我国股市流动性的一些对策。     

中国股票市场流动性的比较研究

本文根据股票买卖价差、有效价差、价格冲击指数、流动性指数、市场深度和大宗交易成本六个指标对中国股票市场流动性进行比较研究,研究表明:沪深两市的流动性均呈现出逐步改善的趋势.从流动性指数、市场深度及大宗交易成本上衡量,上海股市的流动性好于深圳股市,而从价格冲击指数及相对买卖价差衡量,深圳股市的流动性高于上海股市;与国际主要证券市场比较,沪深两市的流动性水平在新兴市场名列前茅,但低于全球平均水平.     

Corporate green innovation and stock liquidity in China

Utilising data from listed companies in China from 2007 to 2020, we first examine whether and how corporate green innovation affects stock liquidity. We demonstrate that corporate green innovation, especially green invention innovation, significantly increases stock liquidity. This promotion effect is stronger in small enterprises, enterprises in cities with serious air pollution, and enterprises in regions with strict environmental regulations. The mechanism analysis suggests that green innovation reduces information asymmetry and improves the financial performance of enterprises. Finally, we explore what types of investors prefer green innovation, and confirm that corporate green innovation is favoured by green investors.     

Sell-order liquidity and the cross-section of expected stock returns

We estimate buy- and sell-order illiquidity measures (lambdas) for a comprehensive sample of NYSE stocks. We show that sell-order liquidity is priced more strongly than buy-order liquidity in the cross-section of equity returns. Indeed, our analysis indicates that the liquidity premium in equities emanates predominantly from the sell-order side. We also find that the average difference between sell and buy lambdas is generally positive throughout our sample period. Both buy and sell lambdas are significantly positively correlated with measures of funding liquidity such as the TED spread as well option implied volatility.     

Insider and liquidity trading in stock and options markets

We analyze the introduction of a nonredundant option, whichcompletes the markets, and the effects of this on informationrevelation and risk sharing. The option alters the interactionbetween liquidity and insider trading. We find that the optionmitigates the market breakdown problem created by the combinationof market incompleteness and asymmetric information. The introductionof the option has ambiguous consequences on the informationalefficiency of the market. On the one hand, by avoiding marketbreakdown, it enables trades to occur and convey information.On the other hand, the introduction of the option enlarges theset of trading strategies the insider can follow. This can makeit more difficult for the market makers to interpret the informationcontent of trades and consequently can reduce the informationalefficiency of the market. The introduction of the option alsohas an ambiguous effect on the profitability of insider trades,which can either increase or decrease depending on parametervalues.     

Impact of liquidity on stock returns: an empirical investigation of the Tunisian stock market

This paper investigates the return–liquidity relationship on one Middle East and North Africa frontier market, the Tunisian Stock Exchange (TSE). The findings provide evidence that there is a significant and positive premium for companies with high price impact and low trading frequency. However, Tunisian investors appreciate more low spread stocks. We show, also, a non-linear relation between potential delays of execution and stock returns. In addition, we find that Tunisian investors require a premium to compensate past cumulative illiquidity risk (high price impact, low turnover and high potential delay of execution) over the prior three to 12 months and to compensate past cumulative spread over 12 months. We point out also that these effects are seasonal.     

Systematic liquidity risk and stock price reaction to shocks

This study examines the relationship between systematic liquidity risk and stock price reaction to large 1‐day price changes (or shocks). We base our analysis on a yearly updated constituents list of the FTSE All share index. Our overall results are consistent with the price continuation hypothesis, which suggests that positive (negative) shocks will be followed by positive (negative) abnormal returns. However, further analysis indicates that stocks with low systematic liquidity risk react efficiently to both positive and negative shocks, whereas stocks with high systematic liquidity risk underreact to both positive and negative shocks. Our results are valid irrespective of various robustness tests such as size of the shock, size of the firm, month‐of‐the‐year and day‐of‐the‐week effects. We conclude that trading on price patterns following shocks may not be profitable, as it involves taking substantial liquidity exposure.     

Drug approval decisions: A note on stock liquidity effects

We analyze the relationship between positive stock returns, changes in trading activities, and liquidity improvements following drug approval announcements. Using a unique hand-collected data set on approval decisions in Europe, we find that stock liquidity does change. Stocks temporarily exhibit strong abnormal trading volume, lower spreads, and permanently become more liquid. Our results suggest that the initial positive wealth effect of a new drug release reflects both positive information content and liquidity improvements.     

State ownership and stock liquidity: Evidence from privatization

We provide unique firm-level evidence of the relation between state ownership and stock liquidity. Using a broad sample of newly privatized firms (NPFs) from 53 countries over the period 1994–2014, our study identifies a non-monotonic association between state ownership and stock liquidity. The inverse U-shaped relation is consistent with trade-offs between costs and benefits of state ownership and suggests an optimal level of government shareholdings that maximizes stock liquidity of NPFs. We further identify that the inflection point from the cost/benefit trade-off is contingent upon characteristics of the nation's institutional environment.     

High-frequency trading and stock liquidity: An intraday analysis

This paper studies the impact of high-frequency trading (HFT) on intraday liquidity of CAC40 stocks listed on Euronext. Spreads display an intraday L-shaped pattern, while quoted depth follows an inverse pattern: low at the open and increasing towards the end of the trading day. When liquidity demand is particularly high, there is a high rate of order cancellations attributable to high-frequency traders who use frequent order cancellations to strategically manage their limit orders and close positions near the market close. Using the generalized method of moments estimator, we generate strong evidence that greater intensity of HFT is associated with lower spreads and higher depth. The positive effect of HFT on liquidity is due mainly to decreased adverse selection costs arising from asymmetric information among market participants.     

Sovereign debt ratings and stock liquidity around the World

This paper studies the impact of sovereign debt rating changes on liquidity for stocks from 40 countries for the period 1990–2009. We find that sovereign rating changes significantly affect stock liquidity. The impact is stronger for downgrades than for upgrades, and is nonlinear in event size. The loss of investment grade has a particularly strong negative impact on stock liquidity. We also find that some stock characteristics and country legal and macroeconomic environment are important in explaining the differences in the impact of sovereign credit rating changes on stock liquidity across countries.     

Short-selling,margin-trading,and stock liquidity: Evidence from the Chinese stock markets

This paper examines the impacts of two forms of leveraged trading—margin trading and short selling—on the trading liquidity of individual stocks in China. We find that trading liquidity for relevant stocks generally improves after restrictions on leveraged trading are removed. However, margin trading and short selling have opposite impacts on liquidity. During ordinary periods, margin trading benefits liquidity, whereas short selling damages liquidity; however, during market downturns, their roles are reversed. We also provide evidence suggesting that short sellers are informed traders in China and that short selling reduces stock liquidity because of the increased risk of adverse selection faced by uninformed traders.