The informativeness of domestic and foreign investors’ stock trades: Evidence from the perfectly segmented Chinese market

This paper uses the perfect market segmentation setting in China's stock market to compare the information content of the stock trades of domestic and foreign investors. We study 76 firms that issue both A-shares (for domestic investors) and B-shares (for foreign investors) and compare the price discovery role of the two segmented markets in China. Before Feb 19, 2001, the A-share market led the B-share market in price discovery, as the signed volume and quote revision of the A-share market had strong predictive ability for B-share quote returns, but not vice versa. After Feb 19, 2001, because some domestic investors were allowed to invest in the B-share market, we find evidence for a reverse causality from the B-share to the A-share market. Nevertheless, the [Hasbrouck (1995). One security, many markets: determining the contributions to price discovery, Journal of Finance 50, 1175–1199.] information share analysis reveals that A-shares continue to dominate the price discovery process.     

A comparison of value relevance of accounting information in different segments of the Chinese stock market

This paper investigates the difference in the value relevance between the accounting information prepared and audited under the Chinese GAAP for A-share investors and under the international accounting standards (IAS) for B-share investors in the Chinese stock market. The study reports three primary findings. First, accounting information influences the pricing process in both the A-share market and the B-share market. Second, the accounting information in the B-share market is more value relevant than that in the A-share market, as expected. Finally, the value relevance level of accounting information in the A-share market was low in earlier years, peaked in 1996, and then decreased due to changes in the disclosure environment. However, the value-relevance level of accounting information in the B-share market had no substantial changes. Using a constant sample, control variables on firm features, and measures of traders' behavior, we obtain robust results. These findings have implications for policymakers on recent moves toward replacing local GAAP with the IAS.     

Value relevance of international accounting standards harmonization: Evidence from A- and B-share markets in China

Applying both the price-levels model and the lagged-price-deflated returns model, we investigated the incremental value relevance of the reconciliation of accounts from the Chinese Accounting Standards (CAS) to the International Accounting Standards (IAS) by those Chinese listed companies that have simultaneously issued A-shares and B-shares. In addition, we examined the usefulness of accounting numbers (earnings and book values) and their value relevance to the A- and B-share markets in China. The study finds that earnings and book values of owners’ equity determined under CAS are more relevant accounting information for the purpose of determining the prices of A- and B-shares. The CAS-based earnings changes were reflected in stock returns in the B-share market, while the CAS-based earnings were closely associated with stock returns in the A-share market. However, the study found that the reconciliation of earnings and book values from CAS to IAS basis is partially value-relevant, mainly to stock prices in the B-share market, while the earnings reconciliation is generally not value-added to stock returns in either the A- or the B-share market. The study results suggest that accounting numbers based on domestic accounting standards, in contrast to IAS, are more value-relevant in the Chinese stock market at present.     

The use of accounting information for the valuation of dual-class shares listed on China's stock markets

This study examines whether accounting data are useful in helping explain the market value of listed firms in China. In particular, we focus our investigation on companies that have issued dual-class shares sold to domestic investors (A-shares) and foreigners (B-shares). Domestic accounting standards (DAS) are used for the financial statements of A-shares while international accounting standards (IAS) are used for B-shares. Our results show that IAS earnings information is incorporated in the prices and returns of B-shares. In contrast, A-share investors appear to place most weight on DAS earnings and only recently has there been an association with IAS information. Book values are value relevant for B-share prices but not for A-share prices. Sensitivity tests show that accounting information is more likely to be impounded in share prices and returns for firms with high individual (i.e. non-government) share ownership. Based on our results, we argue that China's move towards the adoption of IAS will be useful for A-share investors, especially in light of the country's recent accession to the WTO and the consequent opening-up of the economy.     

Economic policy uncertainty,investor attention and post-earnings announcement drift

How the market incorporates information into stock price is a core issue in finance. This study focuses on the impact of economic policy uncertainty (EPU) on the stock prices information efficiency of China's A-share market and underlying role of investors' attention allocation mechanism. This study analyzes the information efficiency of stock prices using the sensitivity of stock cumulative abnormal return to earnings information across different windows following earnings announcement. Based on the earnings announcement events of listed companies in China's A-share market, this study presents an empirical study of the aforementioned issues using event study and regression analysis methods. The following results are seen: (1) EPU aggravates the underreaction of stock price earnings information and the post-earnings announcement drift in the A-share market. (2) Under highly uncertain economic policies, investors show a limited attention allocation pattern of devoting increasing attention to macroeconomic policies and decreasing attention to earnings information, which leads to a decrease in the information efficiency of stock price. This study also analyzes the heterogeneity of the influence of EPU on stock price information efficiency using the institutional shareholding ratio. The results show that increasing institutional shareholding does not reduce the adverse effects of EPU on the information efficiency of stock prices. This study not only provides empirical evidence for Brunnermeier, Sockin, and Xiong (2022) and rational inattention theory, but also reveals that institutional investors show similar behavioral characteristics to retail investors in China's stock market. The results of this study have policy significance for improving the information efficiency of stock market.     

The Post-Issue Market Performance of Initial Public Offerings in China's New Stock Markets

In this paper, we investigate the post-issue market performance of initial public offerings (IPOs) in China's new stock markets. Our analysis focuses on whether and how institutional features unique to China differentially affect IPO performance. These features include the existence of dual-class shares for the same underlying firms (A-shares issued to domestic investors and B-shares issued to foreign investors) and the unusually long time lag between the offering and listing dates. Our sample consists of 277 A-share and 65 B-share IPOs that were listed on China's new stock markets during the 1992–1995 period. Our study has a number of interesting results. First, A-share IPOs are much more severely underpriced during the initial return period than B-share IPOs. Second, B-share IPOs underperform A-share IPOs (and the market) during the post-issue periods for up to three years. Third, the results of multivariate regression analyses strongly suggest that economic factors determining the post-issue performance of IPOs differ across the A-share and B-share samples.     

Further evidence on the efficiency of the Chinese stock markets: A note

This paper examines the efficiency of the Chinese A-share and B-share markets following the deregulation of the B-share market which widened ownership to include domestic investors. Applying parametric and non-parametric variance ratio tests to the daily data of 370 shares over 1996–2005, the paper finds that A-shares are more efficient than B-shares, although the efficiency of both markets has improved following the regulatory change. Overall, the results suggest that the Chinese stock markets are characterised by information asymmetry, although the timely access to high quality information that domestic investors enjoy has improved the efficiency of the B-share market.     

Long-run equilibrium, short-term adjustment, and spillover effects across Chinese segmented stock markets and the Hong Kong stock market

This paper adopts a novel FIVECM-BEKK GARCH approach to examine the bilateral relationships among the A-share and B-share stock markets in China and the Hong Kong stock market. The evidence shows that these stock markets are fractionally cointegrated. Analyses of the spillover effects across these markets indicate that the A-share markets are most influential. The relaxation of government restrictions on the purchase of B shares by domestic residents accelerates the market integration process of A-share markets with the B-share and Hong Kong markets. The effects of the Asian crisis on the stock-return dynamic correlations vary across these markets.     

Underpricing and long-term performance of IPOs in China

We study the underpricing and long-term performance of A- and B-share initial public offerings (IPOs) issued in China during the 1993–1998 period. The average underpricing for A- and B share IPOs are 178% and 11.6%, respectively. The underpricing of A-share IPOs is positively related to the number of days between the offering and the listing and the number of stock investors in the province from which the IPO comes, and negatively related to the number of shares being issued. None of these characteristics explain the underpricing of B-share IPOs. In the long run, A-share IPOs slightly underperform the size- and/or book/market (B/M)-matched portfolios while B-shares outperform the benchmark portfolios.     

An Anatomy of Trading Strategies: Evidence from China

Using a pooled cross-sectional time series approach, we evaluate profits of momentum strategies and identify the sources of profits in China's stock market. Momentum strategies generate significant and negative returns in the A-share market on investment horizons at one month and at and above nine months. In the B-share market, momentum strategies yield significant and negative returns at and above twelve months. Decomposition analysis finds that the negative returns are predominately attributed to the time series profitability of stock returns. Although momentum strategies generate significant and positive returns over the period after China opened its once foreign-restricted B-share market to domestic individual investors, the relative importance of the time series predictability and the cross-sectional variation does not change.     

Corporate Disclosure Policy and the Informativeness of Stock Prices

We examine the association between voluntary corporate disclosure and the informativeness of stock prices. We measure corporate disclosure using the AIMR-FAF annual corporate disclosure ratings. We define price informativeness by the association between current stock returns and future earnings changes: more informative stock price changes contain more information about future earnings changes. To measure this association, we regress current returns against (current and) future earnings changes. The aggregated coefficient on the future earnings changes, which we refer to as the future ERC, is our measure of informativeness (association).We hypothesize and find that greater disclosure is associated with stock prices that are more informative about future earnings (i.e., higher future ERC). These results provide empirical support for the widely held, but heretofore empirically undocumented, belief that greater disclosure provides information benefits to investors.     

Earnings seasonality,management earnings forecasts and stock returns

We examine whether management earnings forecasts (MEFs) help reduce the stock return seasonality associated with earnings seasonality around earnings announcements (EAs) in Chinese A-share markets. We find that firms in historically low earnings seasons outperform firms in high earnings seasons by 2.1% around MEFs. Firms in low earnings seasons also have higher trading volume and return volatility than their counterparts around EAs and MEFs. MEFs significantly reduce the ability of historical seasonal earnings rankings to negatively predict announcement returns, volume and volatility around EAs. The reduction effects are stronger when MEFs are voluntary or made closer to EAs. The evidence suggests that MEFs facilitate the correction of investors’ tendency to extrapolate earnings seasonality and its resulted stock mispricing.     

Is cross-listing a panacea for improving earnings quality? The case of H- and B-share firms in China

This study examines whether cross-listed Chinese H- and B-share firms exhibit higher earnings quality relative to non-cross-listed A-share firms based on seven accounting- and market-based earnings quality attributes, including accrual quality, persistence, predictability, smoothness, conservatism, timeliness and value relevance. We find that earnings quality does not differ between cross-listed and non-cross listed firms in terms of accrual quality, timeliness and value relevance, and that H- and B-share firms report earnings with lower quality in terms of persistence and predictability. We also find that the B-firms report smoother earnings, while the H-firms report more conservative earnings. The results of a battery of cross-sectional, endogeneity and sensitivity analyses either confirm our primary findings of no earnings quality difference or reveal lower earnings quality for cross-listed firms than for non-cross-listed firms. Considering that cross-listing in China is primarily driven by government decisions, our findings suggest that, without proper incentives, cross-listing is not likely to be a panacea for higher quality financial reporting.     

Stock Returns and Volatility under Market Segmentation: The Case of Chinese A and B Shares

In most countries where firms list separate shares for trading by foreign and domestic investors, the prices of the foreign shares tend to be higher. In China, the reverse tends to be true. In this paper, we would like to focus on the information content in lagged premiums of Chinese A over B traded shares. The lagged premiums are found to have certain predictive power over the future returns and volatility of both A and B shares, with some interesting patterns. Specifically, an increase in the premium ratio of A shares will be followed by a rise in the return of A shares and a fall in the return of B shares. It is found that both of the investors in Chinese A- and B-share markets reveal positive feedback trading behavior. Moreover, the liquidity and information availability will affect the magnitude of such behavior especially in B-share markets. By using multivariate GARCH model, it is also demonstrated that the unexpected changes in the premium ratio of A-share price over B-share price contribute to the return volatility of both A shares and B shares. These patterns may provide foundations for the development of pricing models for equity shares under market segmentation.     

Empirical analysis of dynamic correlations of stock returns: evidence from Chinese A-share and B-share markets

This paper examines the dynamic correlation structure between A-share and B-share stock returns based on three different measures of correlation coefficients. Testing the models by employing daily stock-return data for the period from 1996 through 2003, we reach the following empirical conclusions. First, the correlation coefficients between A-share and B-share stock returns are time varying. Second, the dynamic path of the correlation coefficients indicates that the correlation coefficients are significantly correlated with the trend factor. Third, there is a substantial spillover effect from the Asian crisis to Chinese stock-return dynamic correlations. Fourth, the evidence suggests that the time-varying correlations are significantly associated with excessive trading activity as measured by excessive trading volumes and high–low price differentials. Fifth, the correlation between A-share and B-share markets has increased since the relaxation of the restriction on B-share market investments by domestic investors.     

Decomposing the Bid-Ask Spread in a Segmented Equity Market: Analyzing Chinese A Shares Versus B Shares

Because of a regulatory policy change in February 2001, the segmentation of the Chinese stock market significantly decreased. Using this event, we show that the Chinese A-share market is more informationally efficient than the B-share market, both before and after the opening of the B-share market. Furthermore, after the event, both the adverse selection and the order-processing component of B shares decreased, as a result of a larger investor base and possibly a lower proportion of informed investors. This study thus sheds new light on the market segmentation and its effect on transaction costs.     

CROSS-AUTOCORRELATION BETWEEN A SHARES AND B SHARES IN THE CHINESE STOCK MARKET

Listed companies in China, upon meeting certain requirements, can issue two types of shares: A shares and B shares. Local investors in China can only buy and sell A shares, while foreign investors can only buy and sell B shares. We argue that foreign investors may receive news about China faster than domestic Chinese investors because of information barriers in China. Since foreigners participate in the B-share market, the price movements of B shares should reflect the common information that the foreigners have. Rational A-share investors can therefore condition their trading decisions on the previous price movements of B shares. As a result, returns on B shares should lead the returns on A shares. Using daily prices of A and B shares, we demonstrate that returns of B shares are correlated with those of A shares and that this correlation depends on the information transmission mechanism at work. The pattern of the asymmetric cross-autocorrelation is robust to the inclusion of lagged realized returns and trading volumes.     

The effect of market segmentation on stock prices: The China syndrome

China has an A-share market that is open only to local investors and a B-share market that is open only to foreign investors. Contrary to what has been observed in other markets with a similar segmented structure, the China B shares trade at a discount relative to the A shares. We show that the phenomenon can still be explained by basic economic principles. Specifically, the existence of the H-share and the “red-chip” markets in Hong Kong provide good substitutes for the B-share market. We find that when more H shares and red chips are listed in Hong Kong, the B-share discount becomes larger. This is consistent with the model of differential demand elasticity proposed by Stulz and Wasserfallen (Stulz, R., Wasserfallen, W., 1995. Review of Financial Studies 8, 1019–1057).     

Regulation Change and Volatility Spillovers: Evidence from China's Stock Markets

This paper investigates the structural changes of volatility spillovers between Chinese A-share and B-share markets induced by a regulation change on February 19, 2001, that allowed Chinese domestic investors to trade in the B-share market. The empirical results of the study, using high-frequency intraday data collected from a sample of seventy-eight firms issuing both A-shares and B-shares and employing a bivariate generalized autoregressive conditional heteroskedasticity (GARCH) model, show that after the regulation change, the volatility in A-shares increases the volatility in B-shares, thus increasing the risk of the whole market, whereas the latter reduces the former, thus reducing the risk of the whole market. A further investigation of the determinants influencing these structural changes shows that the following factors can encourage structural changes that reduce overall market risk: government ownership, institutional ownership, firm size, B-share proportion, and market-to-book ratio. Conversely, the following factors can encourage structural changes that increase overall market risk: dual roles of chief executive officer and chairman and the joint effect of firm size and B-share proportion.     

提高盈余透明度能带来资本市场和企业双赢吗？——基于企业投资行为视角

盈余透明度作为企业盈余质量是否有效传递的关键,连接着资本市场与企业。在未来更加市场化的股票发行注册制下,盈余信息直接关系着投资者的判断与决策。盈余透明度的提高减少信息不对称,有利于抑制企业机会主义行为,有效保护投资者权益。但盈余透明度提高在有利于资本市场发展的同时,能否给企业自身发展带来好处呢？本文以我国2009-2018年A股上市公司为样本,探究盈余透明度与企业投资行为的关系,找出盈余透明度对企业投资效率的正向影响,证明提高企业盈余透明度是一种双赢的行为,既是机会主义行为防治的有效手段,优化资本市场环境,又是企业健康发展的有力助推因素。