好的品牌能带来更多的回报吗?——基于中国公司的经验研究

品牌是公司最为重要的无形资产,好的品牌能够为公司创造更多的价值。然而,在市场体系尚未健全、商业信用有待重整的中国,品牌能否为公司带来更多的回报是一个有待回答的实证话题。文章根据世界品牌实验室公布的中国500最具价值品牌排行榜,实证分析了品牌与公司业绩之间的关系。实证研究表明,在中国这样的新兴市场国家,高品牌能够为公司带来超额的财务回报和市场回报。     

Equity,Bonds, Institutional Debt and Economic Growth: Evidence from South Africa

We examine the finance‐growth nexus in South Africa accounting for the role of bond markets, stock markets, and bank and non‐bank financial intermediaries using a vector autoregressive technique. Extant empirical literature has largely accounted for only banks and stock markets, ignoring bond market and non‐bank financial intermediaries. We find that bond market development affects economic growth in South Africa, and no similar effect is observed for the bank and non‐bank financial intermediaries and the stock market. Our finding shows that examination of individual elements of the financial system is important in understanding the unique effect of each on growth. The observation that the bond market rather than stock market, bank and non‐bank institutions promote economic growth in South Africa induces an intriguing question as to what unique roles bond markets play that the intermediaries and equity market are unable to play.     

Efficiency, competition, and the development of life insurance in France (1870-1939): Or: should we trust pension funds?

French life insurance remained underdeveloped in comparison with other countries of similar financial development during the period between 1870 and 1939. We show that technical peculiarities of the contracts used and their interaction with macroeconomic fluctuations explain the wide fluctuations we observe in insurance operations. Nevertheless, these fluctuations are not sufficient to explain the industry’s long-term stagnation. Low returns paid to clients, resulting from very conservative investment strategies, were the main reason for that stagnation, since only those interested by the life-cycle related aspects of insurance contracts continued to put money in these institutions, while most savers invested directly in the market or through State-owned financial institutions. The main reason for such an investment (and then low-growth) strategy is the existence of a set of conservative regulations and a stable oligopoly in the industry from the 1880s onwards. We suggest that established insurance companies were able to impose regulations and barriers to entry blocking the access of competitors to their market, so maintaining a hold on a small but very profitable market.     

股票价格波动的信息渠道影响研究——基于媒体报道和分析师预测的视角

文章手工收集、整理了2006-2015年中国A股上市公司的媒体报道倾向数据，实证研究了媒体报道正向倾向与分析师乐观预测偏差对上市公司负收益偏态系数的影响。研究表明，虽然媒体报道正向倾向、分析师乐观预测均分别对上市公司股价负收益偏态系数产生显著的负向影响，但是两者的交互项对股价负收益偏态系数的影响则是显著为正，即当媒体报道正面倾向与分析师乐观预测两者共同作用时，将会触发"信息过度关注偏差"机制，从而降低了上市公司股票收益。文章研究还发现，媒体报道、分析师预测和"信息过度关注偏差"机制的作用强度，在市场化程度高地区要明显大于市场化程度低地区，可能的原因是市场化程度高地区的企业更加容易被媒体报道和分析师关注，进而产生更强的关注效应。     

Understanding the Growth of African Financial Markets*

Abstract: This paper examines empirically the determinants of financial market development in Africa with an emphasis on banking systems and stock markets. The results show that income level, creditor rights protection, financial repression, and political risk are the main determinants of banking sector development in Africa, and that stock market liquidity, domestic savings, banking sector development, and political risk are the main determinants of stock market development. We also find that liberalizing the capital account promotes financial market development only in countries with high incomes, well‐developed institutions, or both. The powerful impacts of political risk on both banking sector and stock market development suggest that resolution of political risk may be important to the development of African financial markets.     

The Effect of Limited Liability on the Informativeness of Earnings: Evidence from the Stock and Bond Markets*

Previous empirical research on the informativeness of earnings has focused on stockholders, and has not examined differences in earnings' informativeness for stockholders and bondholders. Because stockholders are residual claimants and bondholders are fixed claimants, the informativeness of earnings should differ for these two types of investors. When a firm's default risk is low, changes in its financial condition should be of limited relevance to bondholders, but should be relevant to stockholders. In contrast, as the likelihood of financial distress increases, stockholders' limited liability allows them to abandon the firm to the bondholders (Fischer and Verrecchia 1997). Accordingly, as a firm's default risk increases, changes in its financial condition should be increasingly important to bondholders and less important to shareholders. Because earnings provide information on firm value, the stock return-earnings association should decrease as the firm's financial strength declines, while the bond return-earnings association should increase. We use two measures of a firm's financial strength: the firm's bond rating and its reporting of a loss. Consistent with our hypotheses, we find that the association between stock returns and changes in annual earnings decreases as bond ratings decline, while the association between bond returns and changes in annual earnings increases. These results suggest that as the company's financial condition deteriorates, earnings become less relevant for stock valuation and more relevant for bond valuation. When we partition firms based on their loss status, we find a stronger association between stock returns and annual earnings changes for firms with positive earnings (profit firms) than for firms with losses, consistent with earlier studies. In contrast, we find that the association between bond returns and earnings changes is greater for loss firms than for profit firms. These results suggest that losses reduce the informativeness of earnings for stockholders but increase informativeness for bondholders, suggesting that investors view losses as indicating increased credit risk.     

后金融危机时期中国股市的国际地位——基于非线性视角的股市联动网络分析

后金融危机时期全球股市一体化程度不断提高,全面认识中国股市的国际地位对于揭示国际股市一体化联动中的传导机制,防范和应对国际金融风险冲击具有重要的理论意义和现实价值。文章应用非线性格兰杰因果检验方法和社会网络分析方法,对金砖国家和七国集团股市收益率和波动率的联动关系及其联动网络结构进行分析,揭示出中国在国际股市联动中的地位对传导关系的控制方式,定量分析出事件冲击下中国股市与国际股市之间的交互影响。研究发现：（1）国际股市收益率和波动率联动网络呈现出稳定的非线性联动关系网络结构,受其影响各国股市收益之间存在互惠性,而波动之间则存在传染性;（2）在收益率联动网络中,中国股市的作用和地位已与英国相当,远高于其他金砖国家,正逐渐由"从属地位"转向"中心地位";（3）在波动率联动网络中,中国股市是造成国际股市风险交叉影响的重要"桥梁"。综上而言,当前中国股市表现出"高风险低收益"的市场特征;（4）中国对国际股市的影响具有典型的"地缘特征",将网络中心国家股市的利好传递给地缘临近国家股市;（5）波动率联动网络中初始冲击强度较大的国家,往往是对中国股市持续大规模产生冲击的国家;（6）相比较国际股市调整波动冲击的时间而言,中国股市调整时间较短,这表明后金融危机时代中国致力于股市的一系列改革举措取得了显著成效。     

投资者情绪与股票收益——来自移动互联网的实证研究

移动互联网的高速发展使得越来越多的投资者通过移动互联网获取信息并做出投资决策。文章利用网络爬虫技术收集来自移动互联网的用户讨论信息，研究来自移动互联网的用户情绪对股票收益的影响，实证结果显示：移动互联网用户情绪存在显著不对称特征，其更倾向于表现积极乐观的情绪，且其正负面情绪差异大于PCs端；同时，移动互联网用户情绪越乐观，下一期股票收益越高。进一步实证结果表明，处于较差信息环境（如散户持股较高，分析师跟踪人数较少）的公司，移动互联网用户情绪对其股票收益的影响更加显著；此外，对于流动性越差的公司，移动互联网用户情绪对其股票收益的影响也越显著。文章研究结论为移动互联网时代的投资者优化投资决策提供了新的视角，也是对行为金融学中传统媒体定价领域的重要补充。     

零杠杆上市公司的股票长期收益趋势研究

与国际发达的资本市场类似,我国资本市场也存在企业零（低）杠杆现象。基于1992-2014年沪深两市全部A股上市公司的财务报表数据及股票收益数据,文章使用事件研究法与日历时间组合法,实证检验了零（低）杠杆公司的财务特征及股票长期收益情况。研究表明,我国A股市场中的零（低）杠杆现象呈现扩大化及增长趋势,且零（低）杠杆公司具有规模小、上市年限短、市账比高、投资水平低及盈利性好等共同特征。研究也发现相较非零（低）杠杆公司,连续三（五）年零（低）杠杆公司具有显著的长期超额收益,说明持续的极端财务保守政策对于股票收益具有重要的影响作用。     

Interaction between Foreign and Domestic Investors in the Korean Stock and Futures Markets*

The present paper analyzes the behavioral relations of major investor groups in the stabilized Korean stock and futures markets after the 1997 Asian financial crisis. Investor groups cannot be classified as positive or negative feedback traders on market returns when both stock and futures markets are considered, which is inconsistent with the results in Ghysels and Seon (2005). Foreign investors and domestic institutions tend to take opposite positions in both markets. The impact of foreign investors on the basis change is significantly negative in the futures market, whereas domestic institutions have a negative relation in the stock market. This supports the view that selling activity of foreign investors in the futures market pulls the futures price down compared with the index value and, consequently, induces the reverse cash‐and‐carry trade of domestic institutions. This relationship, which negatively influenced the Korean economy during the crisis, as shown in Ghysels and Seon (2005), still exists in the Korean financial markets.     

DETERMINANTS OF FOREIGN INSTITUTIONAL INVESTMENT IN INDIA: THE ROLE OF RETURN,RISK, AND INFLATION

The present study examines the determinants of foreign institutional investments (FII) in India, which by January 2003 almost exceeded U.S. $12 billion. Given the huge volume of these flows and their impact on the other domestic financial markets, understanding the behavior of the flows becomes very important, especially at a time of liberalizing the capital account. By using monthly data, we found that FII inflow depends on stock market returns, inflation rates (both domestic and foreign), and ex‐ante risk. In terms of magnitude, the impact of stock market returns and the ex‐ante risk turned out to be the major determinants of FII inflow. Unlike some of the other investigations of this topic, our study has not found any causative link running from FII inflow to stock returns. Stabilizing stock market volatility and minimizing the ex‐ante risk would help to attract more FII, an inflow of which has a positive impact on the real economy.     

Shadow banking activities of non-financial companies and the information content of stock prices

In recent years, corporate investment rate has been declining, and they have been allocating financial capital to the shadow credit market, which lead to accumulation of financial risks. Based on the annual data of non-financial listed companies from 2007 to 2019, this paper explores the impact of non-financial companies’ shadow banking on the information content of stock prices. Results show that shadow banking of non-financial enterprises reduce the information content of stock price, and the above effects are more significant in regions with lower social trust and higher policy uncertainty, private enterprises, and enterprises without political connection. Enterprises engage in shadow banking can impact idiosyncratic information content of stock price through channels of earning management, irrational investor behavior, creditor risk concerns and informed trading; Analysts over-optimism and insider trading can also have an impact on the relationship between shadow banking activities and synchronization of stock price. This paper analyzes economic consequences of non-financial enterprises’ shadow banking activities, thus providing important theoretical support and policy guidance for enhancing signal mechanism of securities market, improving capital market efficiency of resource allocation, deepening financial market-oriented reforms.     

系统性风险传染的波动性研究——基于金融网络动态关联的视角

在市场流动性不足的前提下,建立资金融通的金融网络结构可以降低个体机构的破产概率,但转移的风险会通过网络节点之间的关联度和正反馈效应实现交叉传染,从而增加整个市场奔溃的概率。文章通过DCC-MGARCH模型和无向有权型网络阐释了包括银行、证券、保险和多元金融机构在内的金融市场系统性风险的时变机制。实证结果表明金融机构的动态关联能够较好解释系统性风险的波动性,且我国的金融市场符合无标度网络的风险传染特征。其中,银行部门的市场中介地位不断强化,银行与非银行金融机构的联系日益紧密,新型金融机构的发展潜力巨大。因此在系统性风险的监管中应强调关联度指标的重要性和金融机构的网络属性,构建具有风险包容性的金融体系。     

Business connectedness or market risk? Evidence from financial institutions in China

We utilize the spectral representation of generalized forecast error variance decomposition to investigate the frequency dynamics of volatility connectedness and systemic risk of financial institutions in China from 2011 to 2018. We find that, first, high-frequency components account for the largest part of volatility connectedness (48.33%), followed by low-frequency components, and finally the medium-frequency components. Second, the low-frequency components reflect the business connectedness among financial institutions, while the high-frequency components capture the market risk. Third, the business connectedness among financial institutions will lead to a rise in overall connectedness as well as the accumulation of potential risks. Further, once a crisis breaks out, the potential risks have realized and the business connectedness among institutions declines; while market risk increases rapidly, which helps systemic financial risk stay at a high level. Lastly, among the financial sectors, the banking sector possesses a relatively higher level of business connectedness which plays an important role in the accumulation of potential financial risks; the securities sector features with higher market risk; while the insurance sector has both comparatively lower business connectedness and market risk.     

Identification of Systemically Important Financial Institutions and Implications for Financial Architecture in Korea

Abstract

The global financial crisis has put a spotlight on concerns about financial system stability. Currently, there are discussions about how to identify systemically important financial institutions (SIFIs) and how to strengthen regulatory measures for these SIFIs. Against the backdrop, this study aims to identify SIFIs by measuring inter-sectoral financial transactions with the flow of funds (FOF) account as a measure of interconnectedness. The empirical results show that banks or insurance companies can be SIFIs only in terms of size. However, foreign banks' branches (FBB) and credit-specialized institutions can also be SIFIs in terms of interconnectedness. Especially the systemic importance of FBB in Korea has increased considering the fact that financial crisis in Korea resulted mainly from foreign exchange market. Therefore, more specific discussions and regulatory measures for SIFIs will be required from the perspective of capital market development and Korea's situation.     

Systemically important banks: an analysis for the European banking system

In this paper we perform an empirical analysis to identify systemically important banks by a few individual bank characteristics that are easy to observe in practice. This analysis builds on a new method to construct measures of systemic relevance of individual institutions that are consistent with a risk analysis at the level of the banking system, taking correlations in bank asset returns into account. We derive asset return correlations for a sample of European publicly traded banks from market data and construct two risk measures: incremental value at risk and conditional expected shortfall. Incremental value at risk quantifies the individual contributions of banks to the system’s Value-at-Risk. Conditional expected shortfall measures the increase in the expected system wide deposit insurance liability that would follow from the default of an institution. The analysis of hypothetical defaults of institutions is performed consistently with the observed distribution of asset returns by using the conditional distribution. Both measures are then analyzed in a panel regression where individual characteristics are used to explain incremental value at risk and conditional expected shortfall.     

基于金融周期视角下股票市场的联动效应研究

世界经济全球化已成为趋势,发达经济体的股市之间以及发达经济体与新兴经济体股市之间的联动性也在经济全球化的趋势中更加紧密。各国金融领域以及金融市场间的快速融合,不断形成统一规范的金融行为准则,也使得全球金融周期性特征越来越明显。文章选取世界五个主要股票市场指数为研究对象,按照已有研究对全球金融周期的划分,将该样本区间分成了繁荣期、衰退期和正常期三个阶段,然后基于这三个阶段分析了在不同金融周期五国股票市场指数收益率联动效应。基于实证研究结论,认为美国和欧洲股市联动性较强,与亚洲股市联动性相对较弱,且美国和中国股市之间联动性最弱,基本捕捉不到下尾相关。相关实证结论有利于国际投资者的投资组合管理,也有助于各国股票市场的风险规避。     

可转换债券首发日股价效应研究

本文对我国可转换债券首发日的股价效应进行了实证研究。研究结果表明,可转债首发日存在显著非零的股价效应。这表明市场对可转债融资行为的反应有一个过程,并非董事会拟发行可转债公告后市场就已经消化了公告的内容。本文的回归结果表明,可转债首发日异常收益与流通股比例显著负相关。这说明,首发日显著为负的累积异常收益）,可由流通股比例来解释,流通股比例越大的公司,首发日异常收益越小,即负得越多,反之亦然。     

跨境资本流动对银行风险的影响--基于风险累积效应和风险传染效应的视角

从风险累积效应和风险传染效应两个视角揭示跨境资本流动对银行风险的影响机理,并基于2000年第一季度至2020年第四季度时间序列数据进行经验检验,结果表明:跨境资本流动、跨境资本流入、跨境资本流出均显著增加了银行风险,且三者对银行风险的影响均存在显著的风险累积效应;跨境资本流动、跨境资本流入、跨境资本流出均通过影响金融机构人民币各项贷款余额同比增速、金融机构外币各项贷款余额同比增速、金融机构本外币各项贷款余额同比增速以及境内住户中长期消费贷款同比增速等信贷渠道显著提高银行风险承担水平,实现银行风险累积,从而增加银行风险;跨境资本流动、跨境资本流入、跨境资本流出均显著提高了股票价格、房地产价格和实际汇率的波动水平,且跨境资本流动通过股票市场、房地产市场和汇率市场将波动水平传染至银行系统,增加了银行风险,股票市场、房地产市场和汇率市场更是强化了这种传染效应。     

浅析中国证券市场多层次发展的逻辑思路

我国资本市场上只有上海和深圳两个交易所,上市公司类型、交易品种都很少,这远不能满足各类企业的融资需求。借鉴国外成熟的资本市场发展经验,结合我国的国情,笔者认为构建多层次的证券市场体系应包括全国性一元化的证券交易所、创业板市场、区域性证券交易市场和产权交易市场四部分。每个市场针对不同的投资者和资金需求者,安排不同的上市标准、运作模式和监管方式,这些子市场相互补充、相互竞争、相互衔接,共同构成完整统一的证券市场体系。