Financial crises and emerging stock markets volatility: do internal factors matter?

This paper has two central aims. The first one is to deal empirically with the effects of financial crises on emerging stock markets volatility. The second objective consists in testing if the level of stock market development affects this relationship. For this purpose, we estimate a static panel data model for a sample of nine emerging economies from January 1990 to December 2006. We consider three types of financial crises, i.e. banking, currency and twin crises. Our empirical results suggest that the onset of financial crises strongly increased stock market volatility. In addition, we find that the biggest impact is exerted by twin crises. When dealing with the second objective, our results show that the market size and the liquidity level can attenuate the effects of banking and currency crises, but not the one associated to twin crises. Nevertheless, the degree of stock market integration seems to reduce the effects of banking, currency and twin crises on stock market volatility.     

Banking stability,competition, and economic volatility

The paper analyzes the influence of banking stability on the volatility of industrial value added using data for 110 countries. Our results confirm the relevance of lending and asset allocation effects because banking stability reduces the volatility of value added more in industries that have greater external financial dependence and intangible intensity when they are located in countries with more developed financial and institutional systems. Moreover, banking stability helps reduce economic volatility more in countries with less bank market competition. We control for recessions, reverse causality problems, and endogeneity of banking stability.     

我国影子银行发展及其对经济金融的影响研究——以山东省为例

本文基于我国对影子银行的定义测算其规模,并在此基础上采用2002—2014年的月度数据和结构VAR模型(SVAR)实证研究了影子银行对宏观经济发展和金融体系的影响。结果表明,近些年我国影子银行发展规模均以较为平稳的速度增长;影子银行短期内对经济增长有负面影响,但总体来看其发展对我国宏观经济具有积极作用;影子银行发展对我国金融发展具有一定的促进作用,但其规模过度扩张将会增加商业银行流动性风险,弱化其信用中介功能,对金融稳定产生负向冲击效应。最后在总结研究结论的基础上提出政策建议。     

The impact of the banking sector on economic structure and growth

In this paper, we study the impact of banking sector development on changes in economic structure and growth. We argue that banking sector development has differential effects on industrial sector development and agricultural sector development. We test whether economic structure and growth foster banking sector development. To test our hypotheses, we construct a panel sample of all countries in the world during 1960–2016. We find that banking sector development has a negative effect on agricultural sector development but exerts no effect on industrial sector development. The negative effect of banking sector development on agricultural sector development is only observed for countries with high degrees of banking sector development. Our results further show that agricultural sector development exerts a negative effect on banking sector development while industrial sector development has a positive effect on banking sector development.     

Excess reserves,monetary policy and financial volatility

This paper examines the real and financial effects of reserves in a Dynamic Stochastic General Equilibrium (DSGE) model with monopoly banking and credit market imperfections. The framework explicitly accounts for the fact that commercial banks hold excess reserves and they incur costs in holding these assets. The model also accounts for imperfect substitutability between bank funding sources and it shows that this feature is an important channel through which reserve requirement shocks can affect real variables. Numerical experiments show that an increase in reserve requirements creates a countercyclical effect for real economic activity. The results also indicate that the combination of an augmented Taylor rule which responds to excess reserves and a countercyclical reserve requirement rule is optimal to mitigate macroeconomic and financial volatility associated with liquidity shocks.     

Liquidity needs and vulnerability to financial underdevelopment

This paper provides evidence that financial development has a large causal effect in the reduction of macroeconomic volatility resulting from the role of the financial system in liquidity provision. In particular, financial system development leads to a comparatively larger reduction in the volatility of output in sectors with high liquidity needs. Most of this decline results from the stabilization of the output of existing firms, although the volatility of the number of firms also drops significantly. Among different aspects of the financial system, the depth of financial intermediaries plays the main role in the reduction of volatility.     

Substitution or complementary effects between banking and stock markets: Evidence from financial openness in Taiwan

This study uses quarterly data from 1973 to 2007 to investigate the influence of financial institutions on economic growth in Taiwan. We find that the breakpoint obtained by Gregory and Hansen (1996) appears in the third quarter of 1982, which coincides with the period of financial openness. In addition, the substitution effect between credit and equity markets is improved following financial openness. The negative impact of volatility on real output before financial openness turned positive after financial openness, suggesting that appropriate volatility enhances Taiwan's economic growth under the circumstance of more matured stock market following financial openness. However, the beneficial influence of liquidity on real output before financial openness turned negative afterward, suggesting openness generated the undesirable side effect of excess liquidity that impeded economic growth. Our long-run results are essentially the same even if we take the role of the private bond market into account.     

Managing liquidity: Optimal degree of centralization

Large banking groups face the question of how to optimally allocate and generate liquidity: in a central liquidity hub or in many decentralized branches. We translate this question into a facility location problem under uncertainty. We show that volatility is the key driver behind (de-)centralization. We provide an analytical solution for the 2-branch model and show that a liquidity center can be interpreted as an option on immediate liquidity. Therefore, its value can be interpreted as the price of information, i.e., the price of knowing the exact demand. Furthermore, we derive the threshold above which it is advantageous to open a liquidity center and show that it is a function of the volatility and the characteristic of the bank network. Finally, we discuss the n-branch model for real-world banking groups (10-60 branches) and show that it can be solved with high granularity (100 scenarios) within less than 30 s.     

金融结构、银行业结构与产业结构调整

本文基于广东省的实践，分别考察了广东省金融结构、银行结构与产业结构调整的互动关系。运用2006-2011年广东省各市的面板数据，实证分析了广东省金融结构对产业结构调整影响，发现广东省银行业的发展对产业结构调整有明显的正向促进作用，而股票市场的发展对产业结构调整有一定的负向影响。这表明行业的发展在广东的经济发展中发挥着不可替代的作用，而股票市场由于不完善及多种非经济因素的影响，对产业结构调整产生了一定的阻碍作用。在此基础上运用1980-2011年广东省时间序列数据进一步分析了银行业结构与产业结构之间关系，结果表明广东省银行集中度的提高对产业结构调整有长期的负向影响。因此，必须提高银行业的竞争，逐步降低四大国有商业银行的垄断地位，同时加强股票市场的完善。     

CARE/CEASA Roundtable on: Liquidity and Capital Management

Five distinguished banking and accounting scholars explore the role of liquidity at not only the “macro” level of the economy, but also at the level of individual companies. The first of the four main speakers, who is the author of the preceding article, restates his argument that the stability of financial systems can be increased by directing bank regulators and executives to find the optimal combination of liquidity and capital requirements. The second of the four speakers shifts the focus to liquidity management by non‐financial companies, with particular emphasis on their use of lines of credit and their role in helping companies weather the financial crisis. The third speaker places liquidity in the context of capital markets, and presents suggestive evidence that improvements in corporate disclosure and transparency have beneficial effects on both the level and volatility of liquidity in those markets. The panel is rounded out by a discussion of liquidity in corporate bond markets and the proposal of a new way to measure such liquidity.     

Crises, Volatility, and Growth

How do volatility and liquidity crises affect growth? When creditis constrained, a bias toward short-term debt can arise in financinglong-term investments, generating maturity mismatches and leadingpotentially to liquidity crises. The frequency of liquiditycrises ("abnormal" volatility) and the volatility of growth("normal" volatility) are found to have independent negativeeffects on growth. Financial development however dampens thegrowth cost of volatility, but only in the case of normal volatility.The growth cost of volatility therefore depends critically onthe composition of normal and abnormal volatility, the latterbeing more costly for growth.     

Banking Market Size Structure and Financial Stability: Evidence from Eight Asian Countries

Using commercial bank data from eight major Asian countries, we examine the relationship between the banking market size structure and the stability of financial institutions. We also analyze the effect of bank upsizing on the financial stability. Our results show that a rise in large banks’ market power, accompanying an increase in their market shares, lowers the capital adequacy of small banks. Small banks’ nonperforming loans and the possibility of their bankruptcy also increase as large banks’ market shares rise. We further show that larger banks tend to have lower capital adequacy ratios, liquidity ratios, and distance-to-default ratios. Our study suggests that large banks’ greater market shares are associated with small banks’ financial instability. Overall, these findings are consistent with the notion of the recent banking literature that has important antitrust policy implications.     

美联储政策变化、国际资本流动与宏观经济波动

本文构建包含国际投资者、外资企业和银行流动性冲击的DSGE模型来探究美联储货币政策变动和政策不确定性对我国宏观经济的影响和作用机制。研究发现:(1) 美联储加息会导致我国产出、投资和通货膨胀的下降、汇率贬值、国际资本外流和银行系统流动性紧张。随着金融摩擦程度的增加和银行杠杆率的上升,美联储加息对我国产出、投资和资产价格的负面影响会进一步增强。(2) 美联储货币政策不确定性的增加会直接导致外资企业的投资、劳动需求和产出的下降,并对我国总产出、总投资和资产价格产生明显的负向外溢效应,进一步加剧我国宏观经济的波动。(3)为应对美联储的利率变动,适当限制国际资本流动能有效稳定我国经济波动和改善社会福利,而实施固定汇率和央行盯住美国利率的政策会加大宏观经济的波动,并导致社会福利下降。     

The Eurozone banking sector in the time of COVID-19: Measuring volatility connectedness

This article investigates the volatility connectedness of the Eurozone banking system over the last 15 years (from 2005 to 2020). Applying the Diebold-Yilmaz Connectedness Index model to the daily stock return volatilities of 30 major Eurozone banks, we are able to measure the risk spillover effects and to capture the COVID-19 outbreak's impact on banking stability. The empirical findings show that the 30 banks are highly interconnected. Furthermore, we show the strong impact of the COVID-19 pandemic on the volatility dynamics, i.e., on the structure of the Eurozone banking system. Dynamically, we find that volatility connectedness increases during crises, reaching its maximum peak at the time of COVID-19. The analysis points out the critical role of volatility transmission played by large banks, highlighting the “too-big-to-fail” characteristic of this banking system. However, we find that small-medium banks are important actors of contagion, supporting the thesis that the Eurozone banking system is also “too-interconnected to fail.” Finally, we document the heterogeneity effect of the COVID-19 pandemic between Eurozone banking systems. This heterogeneity impact could be a future source of financial instability within the Eurozone.     

金融错配、非金融企业影子银行化与经济“脱实向虚”

当前,我国一些非金融企业通过直接或间接的方式从事影子银行业务。本文利用2004-2015年上市公司数据研究发现,金融错配程度的提高整体上会提高企业影子银行化规模,并且这种效应仅在金融深化程度较高、经济资源市场化配置程度偏低的地区显著;僵尸企业和盈利性较差的企业,分别受到“利润追逐”和“投资替代”机制的影响,金融错配对其影子银行化趋势的正向作用更为明显。机制检验发现,金融错配水平的上升通过提高融资约束程度从而降低企业实体投资水平,这种效应在资产专用性较强的企业中更为明显;金融错配主要通过融资约束程度和实体投资规模,而非资本回报率渠道作用于企业影子银行化行为。本文研究对于提高信贷资源配置效率,防范经济“脱实向虚”具有较强的政策意义。     

Shadow Banking,Risk Transfer,and Financial Stability

Shadow banking is the process by which banks raise funds from and transfer risks to entities outside the traditional commercial banking system. Many observers blamed the sudden expansion in 2007 of U.S. sub‐prime mortgage market disruptions into a global financial crisis on a “liquidity run” that originated in the shadow banking system and spread to commercial banks. In response, national and international regulators have called for tighter and new regulations on shadow banking products and participants. Preferring the term “market‐based finance” to the term “shadow banking,” the authors explore the primary financial instruments and participants that comprise the shadow banking system. The authors review the 2007–2009 period and explain how runs on shadow banks resulted in a liquidity crisis that spilled over to commercial banks, but also emphasize that the economic purpose of shadow banking is to enable commercial banks to raise funds from and transfer risks to non‐bank institutions. In that sense, the shadow banking system is a shock absorber for risks that arise within the commercial banking system and are transferred to a more diverse pool of non‐bank capital instead of remaining concentrated among commercial banks. The article also reviews post‐crisis regulatory initiatives aimed at shadow banking and concludes that most such regulations could result in a less stable financial system to the extent that higher regulatory costs on shadow banks like insurance companies and asset managers could discourage them from participating in shadow banking. And the net effect of this regulation, by limiting the amount of market‐based capital available for non‐bank risk transfer, may well be to increase the concentrations of risk in the banking and overall financial system.     

金融错配、非金融企业影子银行化与经济“脱实向虚”

当前,我国一些非金融企业通过直接或间接的方式从事影子银行业务。本文利用2004-2015年上市公司数据研究发现,金融错配程度的提高整体上会提高企业影子银行化规模,并且这种效应仅在金融深化程度较高、经济资源市场化配置程度偏低的地区显著;僵尸企业和盈利性较差的企业,分别受到“利润追逐”和“投资替代”机制的影响,金融错配对其影子银行化趋势的正向作用更为明显。机制检验发现,金融错配水平的上升通过提高融资约束程度从而降低企业实体投资水平,这种效应在资产专用性较强的企业中更为明显;金融错配主要通过融资约束程度和实体投资规模,而非资本回报率渠道作用于企业影子银行化行为。本文研究对于提高信贷资源配置效率,防范经济“脱实向虚”具有较强的政策意义。     

工业革命、金融革命与系统性风险治理

本文以历史上三次工业革命为切入点,探讨工业革命、金融革命与系统性风险治理间的关系。在工业革命演进过程中,先进技术创新应用、经济结构转变和社会环境变迁,推动了金融业演进发展和升级;反过来,资本的快速积累和有效融通对科技进步转化为工业革命不可或缺,以现代商业银行、现代投资银行和创业投资体系为特征的三次金融革命分别是三次工业革命的重要推动力量。但如果制度规则建设和监管滞后,金融发展失序也会导致系统性风险逐步累积,引发金融危机,反过来催生重大金融体制或监管制度变革。当前第四次工业革命已拉开序幕,金融科技引领的金融业集成创新有望成为第四次金融革命的突出特征。我国是全球金融科技发展领先的国家之一,应统筹发展与安全,在金融科技带动下发挥好银行体系、资本市场、创投体系和金融科技企业服务实体经济创新发展的合力,同时做好风险防范,引导从业机构在服务实体经济和遵从审慎监管的前提下守正创新,防止资本无序扩张,牢牢守住不发生系统性风险的底线。     

Does foreign institutional ownership increase return volatility? Evidence from China

This paper investigates the impact of foreign institutional ownership on firm-level stock return volatility in China, based on our study of a sample of 1458 firms between 1998 and 2008. The empirical results show that share ownership by foreign institutions (both financial and non-financial) increases firm-level stock return volatility, even after controlling for a complete ownership structure, firm size, turnover, and leverage, and correcting for potential endogeneity problems. However, the results also show that foreign individual shareholdings reduce volatility. Furthermore, we document a positive relationship between domestic shareholdings (individual, institutional, and governmental) and firm-level stock return volatility. Empirical results with interaction terms show that foreign institutional ownership increases firm-level return volatility by strengthening the positive impact of liquidity on volatility. The volatility reduction effect of foreign individual ownership is attenuated by government ownership suggests a poor governance environment as a result of the involvement of the Chinese government.     

Liquidity,implied volatility and tail risk: A comparison of liquidity measures

Liquidity is easily perceived but not easily measured in financial markets. Researchers and practitioners develop and test new measures of liquidity which may be good candidates for measuring this elusive concept. In this study, we present a comparison of variables within two empirical exercises using up to eight traditional liquidity proxies and two proposed proxies based on semi-deviations in a sample of NYSE-listed stocks. The first empirical exercise analyzes the relationship between liquidity and implied volatility, showing that increases in implied volatility impacts increases illiquidity. Using a decomposition of the squared VIX, we show that both conditional variance and variance premium components affects liquidity. Our second empirical exercise investigates the relationship between common factors in liquidity and tail risk. Common factors increase individual stocks' Value-at-Risk and Expected Shortfall, although the effect is not significant for market risk. In both applications, most of the studied proxies present results aligned with the body of literature.