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.     

Split Share Structure Reform,corporate governance,and the foreign share discount puzzle in China

We examine the impact of the Split Share Structure Reform on the well-known foreign share discount puzzle in China. Existing literature confirms that foreign investors are more concerned about insider expropriation because of their information disadvantage relative to domestic investors. The split share structure of the ownership of Chinese listed firms created a conflict of interests between state and private shareholders. Since, before the reform, state shareholders held restricted shares that denied them any wealth effect from share price movements, they had a limited incentive to work with private shareholders to ensure that managers maximized the stock market value of the firm. By abolishing the trading restrictions for state shareholders, this reform has increased the incentive alignment between state and private shareholders, encouraging them to monitor managers. If foreign investors’ concerns over the corporate governance implications of the split share structure at least partly contributed to their discounting of Chinese listed firms, then this discount should be reduced following the reform. Indeed, our evidence confirms this prediction, especially among Chinese listed firms with more state ownership or restricted shares. Our findings imply that this significant institutional reform of the Chinese stock market has benefitted minority investors.     

Equity market liberalization and corporate governance

Equity market liberalizations open up domestic stock markets to foreign investors. A puzzle in the literature is why developing countries exhibit relatively small financial impacts associated with liberalizations. We use cross-firm variation in corporate governance at the time of the official liberalization of the equity market in Korea to test whether governance can explain the extent to which firms benefit when countries liberalize. The results show that better-governed firms experience significantly greater stock price increases upon equity market liberalization. Following the liberalization in Korea, foreign ownership in firms with strong corporate governance was significantly higher than that in firms with weak governance. Better-governed firms also exhibit higher rates of physical capital accumulation after liberalization.     

FOREIGN OWNERSHIP RESTRICTIONS AND MARKET SEGMENTATION IN CHINA'S STOCK MARKETS

We study market segmentation in China's stock markets, in which local firms issue two classes of shares: class A shares available only to Chinese citizens and class B shares available only to foreign citizens. Significant stock price discounts are documented for class B shares. We find that the price difference is primarily due to illiquid B‐share markets. Relatively illiquid B‐share stocks have a higher expected return and are priced lower to compensate investors for increased trading costs. However, between the two classes of shares, B‐share prices tend to move more closely with market fundamentals than do A‐share prices. Therefore, we find A‐share premiums rather than B‐share discounts in China's markets. JEL classification: G15     

公司治理与IPO抑价——来自中国股票市场的经验证据

Jensen与Meckling(1976)认为,代理成本是投资者愿意支付的价格与公司内在价值之间的差异。投资者对公司代理成本的预期也会体现在IPO定价过程中,良好的公司治理结构有助于降低公司IPO抑价。本文以我国2002—2003年的133家IPO公司为研究样本,研究样本公司治理结构特征对IPO抑价的影响。结果发现,控制权结构特征以及关联交易性质对IPO抑价有显著的影响,而董事会独立性对IPO的抑价影响则不显著。本文的结果表明,良好的公司治理结构可以显著地降低IPO抑价,降低公司股权融资成本。     

Shareholding structure and corporate performance of partially privatized firms: Evidence from listed Chinese companies

Equity ownership in a listed Chinese firm can have as many as five different classes: state-owned shares, legal-person (LP) shares, tradable A-shares, employee shares, and shares only available to foreign investors, a phenomenon that is unique to the Chinese equity market. In this paper, we investigate whether and how the corporate performance of listed Chinese firms is affected by their shareholding structure. The sample consists of all firms listed in the Shanghai Stock Exchange (SHSE) from 1991 to 1996. It is found that firm performance is positively related to the proportion of LP shares but negatively related to the proportion of shares owned by the state. Additional analyses indicate that firm performance increases with the degree of relative dominance of LP shares over state shares. Moreover, for the subsample of firms that do not have both state and LP shares, the return on equity (ROE) of firms with LP shares but no state shares is higher than that of firms with state shares but no LP shares by 3.84%, and this difference is statistically significant. On the other hand, there is little evidence in support of a positive correlation between corporate performance and the proportion of tradable shares owned by either domestic or foreign investors. These findings suggest that the ownership structure composition and relative dominance by various classes of shareholders can affect the performance of state-owned enterprise (SOE)-transformed and listed firms.     

什么决定了利润差异:会计准则还是职业判断?——来自中国A、B股市场的初步证据

我国资本市场有少量的公司同时发行A股和B股,这部分公司需要提供两套财务报表,分别遵循了国内会计准则和国际会计准则。我们以我国会计制度改革的特定时期(1998-2000)为背景,以同时发行A、B 股的公司为样本,经过研究发现,那些同时发行A、B股公司所报告的净利润差异,主要不是来自会计准则,而是来自于会计职业判断;而会计职业判断背后的经济动机在于上市公司为了达到保牌的目的。我们的研究丰富了有关会计准则与会计信息质量之间关系的研究。     

Legal protection of investors,corporate governance,and the cost of equity capital

This study examines the effect of firm-level corporate governance on the cost of equity capital in emerging markets and how the effect is influenced by country-level legal protection of investors. We find that firm-level corporate governance has a significantly negative effect on the cost of equity capital in these markets. In addition, this corporate governance effect is more pronounced in countries that provide relatively poor legal protection. Thus, in emerging markets, firm-level corporate governance and country-level shareholder protection seem to be substitutes for each other in reducing the cost of equity. Our results are consistent with the finding from McKinsey's surveys that institutional investors are willing to pay a higher premium for shares in firms with good corporate governance, especially when the firms are in countries where the legal protection of investors is weak.     

Investors’ perception of corporate governance: a spillover effect of Taiwan corporate scandals

The discovery of a series of corporate scandals in Taiwan between 16 June and 15 September 2004 offers a unique opportunity to investigate the perceptions of investors on the value of corporate governance, whilst avoiding any interactions with other exogenous factors such as the lower expected returns on all firms’ investment opportunities during the East Asian or Global financial crises. The main line of reasoning in this study is that at times when news of scandals flows into the market, the perceptions of certain type of investors will lead to a change in their trading habits for non-scandal portfolios. With a comprehensive analysis of order and trade data for all investors identified by investor code, it is found that a substantial proportion of investors ceased trading altogether during the scandal period. This response was particularly discernible among small and medium individuals, despite the fact that the firms in these portfolios were not associated with the scandals. We further examine the ordering behavior of those investors who still traded in the market. It shows that small individual investors began to enter the market more passively, regardless of whether the firms’ ownership structure. And they consistently underperformed in both ownership-structure portfolios. However, foreign institutions and large individuals place more aggressive orders for stocks in firms with strong cash-flow rights leverage and perform particularly well in those portfolios.     

Founders,heirs, and corporate opacity in the United States

We argue that information about firm activities can vary substantially in the presence of founder or heir ownership, thereby influencing the risks borne by minority investors. We explore two hypotheses with regard to these controlling shareholders and corporate transparency, focusing on their role as monitor in-place and their potential to exploit firm opacity to accrue private benefits of control. To test these notions, we create an opacity index that ranks the relative transparency of the two thousand largest industrial US firms and find founder and heir ownership in 22% and 25% of these firms, respectively. Our analysis indicates that, in large, publicly traded companies, both founder and heir firms are significantly more opaque than diffuse shareholder firms. We also find that founder and heir-controlled firms exhibit a negative relation to performance in all but the most transparent firms. Surprisingly, additional tests reveal that concerns about divergences in ownership versus control (management type, dual class shares, and board influence) appear to be substantially less important than corporate opacity in explaining the performance impacts of founder and heir control. Finally, we decompose corporate opacity into disclosure and market scrutiny components, finding that the disclosure quality component appears to be of greater importance to investors. However, irrespective of whether these controlling shareholders create or stay in the firm because of corporate opacity, our analysis suggests that founders and heirs in large, publicly traded firms exploit opacity to extract private benefits at the expense of minority investors.     

The impact of state ownership on share price informativeness: The case of the Split Share Structure Reform in China

This study examines the impact of state ownership on share price informativeness using the unique setting of the Split Share Structure Reform in China. This reform abolishes the trading restriction on shares held mainly by state shareholders. In doing so, it renders state shareholders' wealth more sensitive to share price movements and decreases their conflict of interests with private shareholders. This change is expected to strengthen the corporate governance incentives of state shareholders and reduce the information asymmetry in Chinese listed firms. This prediction is confirmed through empirical evidence of increased share price informativeness among firms that are more sensitive to the impact of this reform, i.e. those with more state ownership or restricted shares. These findings imply that this reform benefits the information environment and minority shareholders in the Chinese stock market.     

Crises,contagion and cross-listings

We investigate whether cross-listing shares in the form of depositary receipts in overseas markets benefits investors in emerging market countries during periods of local financial crisis from 1994 to 2002. We regress cumulative abnormal returns for three windows surrounding the crisis events on the cross-listing status while controlling for cross-sectional differences in firm age, trading volume, foreign exposure, disclosure quality and corporate governance. Further, we examine cross-listing effects in countries popularly thought to experience contagious effects of these crises. We find that cross-listed firms react significantly less negatively than non-cross-listed firms, particularly in the aftermath of the crisis. The results on contagious cross-listing effects are however mixed. Our findings are consistent with predictions based on theories of market segmentation as well as differential disclosure/governance between developed and emerging markets. We do not find evidence that foreign investors “panic” during a currency crisis.     

Attention! Distracted institutional investors and stock price crash

Using the extreme returns of firms in unrelated industries of institutional shareholders' portfolios as exogenous variations in institutional investor distraction (Kempf et al. 2017), we find a positive and significant relation between institutional shareholder distraction and stock price crash risk. The effect is associated with weakened monitoring, and it becomes stronger when alternative corporate governance is weaker and when managers' incentives to hoard bad information are stronger. Managers reduce firms' accounting conservatism when institutional investors become distracted, which is evidence of an increased motivation to hoard bad news. Overall, our findings shed additional light on the important monitoring role of institutional investors in corporate governance.     

Isolating the effect of disclosure on information risk

This study examines companies with two classes of shares that entitle their holders to identical cash flow and voting rights but that are available to mutually exclusive sets of investors: A shares to domestic investors and B shares to foreign investors. Price differences between A and B shares are higher in firms with a greater disparity in the disclosures that they make to domestic and foreign investors. This association is more pronounced when the cost (benefit) of information transfer is higher (lower). The results suggest that disclosure disparity creates meaningful differences in investors' average information precision across A and B shares and thus influences the cross-sectional variation in price differences.     

Convergent synergies in the global market for corporate control

We investigate the informational role of the takeover premium as a forward looking price to expected synergies in the global market for corporate control. We find that premiums paid in the global market for corporate control are clustered in waves and driven to some extent by the US premium. International takeover premiums have become more responsive to US premiums as the globalization process evolved over time. Short-run divergent dynamics due to idiosyncratic or country-specific factors have become less severe, which suggests that expected synergies have become increasingly integrated in the global market for corporate control. Furthermore, we find that the region’s takeover premiums typically become more responsive to US takeover premiums when US economic conditions are relatively weak, when the US monetary policy is restrictive, when US credit risk is high, and when the region’s corporate governance (as measured by legal system quality and accounting quality) is high.     

A corporate governance explanation of the A-B share discount in China

B-shares listed in China are traded at substantial discounts to their corresponding A-shares although they have identical rights. We offer a governance explanation and suggest that relative to domestic investors, foreign investors care more about a firm’s governance quality. Results are supportive, as the B-share price discount is higher for firms that have weaker governance characterized by 1) higher ownership concentration, 2) ineffective boards with a higher proportion of directors appointed by the parent company, 3) lower dividend payouts, and 4) higher levels of information asymmetry.     

中国式卖空机制与高管减持——基于融资融券分步扩容的准自然实验

本文以我国的融资融券制度为背景,结合双重差分模型,研究卖空机制对上市公司高管减持行为的影响。研究发现,相对于非融券标的,可融券标的公司高管的月减持比例在允许卖空后下降22%,这种抑制作用在小规模、高盈余平滑度以及非国有公司中体现得更为明显。其次,成为可融券标的后,股价定价效率提高,高管减持收益显著下降。进一步地,本文将高管的减持行为分为定期性与投机性两类,发现卖空机制显著抑制了高管基于信息优势和股价偏差的投机性减持行为。     

内部控制与异质机构持股的治理效应

本文实证检验了不同内部控制水平下,异质机构持股在抑制管理层盈余操纵方面的公司治理效应。研究发现,相比外地或短期机构持股,本地或长期机构持股更有助于提升应计质量和降低盈余噪音;当公司存在实质性内部控制缺陷时,本地或长期机构持股在抑制管理层盈余操纵方面的治理效应显著降低;相比国有控股,异质机构持股治理效应的发挥在非国有控股公司中受内部控制的影响更大;当公司存在财务报告实质性内控缺陷时,异质机构持股发挥的治理效应明显更弱。这些结果表明,异质机构持股治理效应的发挥离不开公司内部控制机制,二者之间是互补而非替代关系,这种互补关系主要由财务报告内部控制缺陷驱动。本研究有助于深化理解异质机构持股影响公司治理的具体作用机理,为实务界和监管机构改善公司治理、加强投资者保护提供经验参考。     

A re-examination of firm's attributes and share returns: Evidence from the Chinese A-shares market

It is widely accepted that some firms' attributes or characteristics, such as a firm's size or book-to-market ratio, attract premiums in terms of average returns, which is a pervasive phenomenon not restricted to just a few individual markets. However, the way to derive these premiums by sorting firms based on their characteristics that are known to be associated with share returns, is not without controversy. This study takes a totally different approach by adopting a novel Self-Organizing Maps approach to cluster share returns first and identify the attributable factors afterwards. It finds eminent presence of the value effect in the Chinese A-shares market. It also finds that two other firm attributes, ROA and cash-flow-to-price, also have explanatory power over share returns. Liquidity and the ratio of tradable to total shares, which are often used to proxy corporate governance, show little evidence of explaining share return dispersion. Surprisingly, a “reversed” size effect is reported in this study.     

CEO turnover in China: the role of market-based and accounting performance measures

We investigate the relationship between chief executive officer (CEO) turnover and firm performance in China's publicly traded firms. We provide evidence on the use of accounting and market-based performance measures in CEO turnover decision. We also investigate the moderating roles of noise in performance measures, firm growth opportunities, state-owned enterprises, and corporate governance reform on the weights attached to these performance measures. We observe that Chinese listed firms rely more on accounting performance than on stock market performance when determining CEO turnover. Firms with noisier performance measures and larger growth opportunities rely less on both accounting performance and stock market performance in CEO replacement decision. State-controlled firms are more likely to use accounting performance to determine CEO turnover. Finally, we observe that the weight attached to the accounting performance measure is significantly reduced and the weight attached to the stock market performance measure is significantly increased after the governance reform. We also observe that the reform has different impact on state-owned firms and private firms in terms of the sensitivity of CEO turnover to firm performance.