Tree networks to assess financial contagion

We propose a two-layered tree network model that decomposes financial contagion into a global component, composed of inter-country contagion effects, and a local component, made up of inter-institutional contagion channels. The model is effectively applied to a database containing time series of daily CDS spreads of major European financial institutions (banks and insurance companies), and reveals the importance of monitoring both channels to assess financial contagion. Our empirical application reveals evidence of a high inter-country and inter-institutional vulnerability at the onset of the global financial crisis in 2008 and during the sovereign crisis in 2011. The results identify France as central to the inter-country contagion in the Euro area during the financial crisis, while Italy dominates during the sovereign crisis. The application of the model to detect contagion between sectors of the European economy reveals similar findings, and identifies the manufacturing sector as the most central, while, at the company level, financial institutions dominate during the 2008 crisis.     

国际金融危机:直向性传染到交叉性传染的动态效应分析

本文用VAR系统检验金融危机的传染.通过对5国摩根史丹利MSCI指教的Granger因果关系检验和脉冲响应函数检验分析金融危机的传染效应,得出结论:金融危机前的平稳期美国与其他4国间保持单向因果关系;金融危机爆发后美国与这些国家建立双向因果关系,危机传染存在反馈机制;金融危机在国家间的交叉传染导致危机程度不断加深;脉冲响应函微检验验证了危机传染的动态效应即美国全融市场对其他国家的冲击强度加大,持续时间增加.     

Predictability of equity returns during a financial crisis

An occurrence of a market crash or a financial crisis has long been considered a cause of market inefficiency. An inefficient market commonly implies return predictability and the existence of profitable opportunities for traders and speculators. Technical analysis has been a popular tool to identify predictable patterns in asset prices. The usefulness of a large universe of technical trading rules popularized in the existing literature on technical analysis is tested when they are applied to a set of equity markets that are generally considered developed and efficient during the two most recent periods of major financial turmoil: the 1997 Asian financial crisis and the 2008 global financial crisis. Three major statistical deficiencies that existing studies on return predictability are commonly criticized for – data snooping bias, nonsynchronicity bias and transaction costs – have been incorporated in the analysis. Technical trading rules are largely unable to yield abnormal excess returns over the passive benchmark after data snooping bias, nonsynchronous pricing and transaction costs are accounted for. Chaotic price movements typical for a volatile market during a financial crisis are likely to have an adverse effect on the performance of active trend chasing trading strategies.     

Information-based contagion and the implications for financial fragility

This paper explores a global game model of information-based financial contagion. By revealing information on a common fundamental factor and thereby affecting the behavior of creditors, the failure of a single firm can trigger the failure of another firm. The model provides a unique equilibrium framework to assess the consequences of contagion and yields some hitherto unnoticed insights. While contagion increases the correlation among the financial failures of different firms, its impact on the incidence of failure is ambiguous. I consider an analytically tractable version of the model in which the effect on the ex ante failure probabilities is exactly zero. Moreover, the impact of contagion increases with the relevance of a common underlying fundamental, but is limited to firms near the brink of success or failure.     

Overall effects of financial liberalization: financial crisis versus economic growth

ABSTRACT

The contribution of this work consists firstly in decomposing the effect of financial liberalization into a global direct positive effect on growth and an indirect negative effect via financial fragility and crisis. We show that the aggregate positive effect of financial liberalization outweighs the negative partial or temporary effect. Secondly, contrary to previous works, we distinguish many types of financial reforms. We found that equity market liberalization is the most important component in reducing economical costs associated with financial crisis. Thus, equity market liberalization is the most important favoring growth. Interest rate liberalization enhances significantly the probability of crisis leading to a short-run indirect effect more important than other financial reforms. Thirdly, we improved our work by addressing model uncertainty using Bayesian Model Averaging techniques to choose appropriate indicators for model crisis specification.     

Anatomy of a financial crisis

This paper provides an asymmetric information framework for understanding the nature of financial crises. It provides the following precise definition of a financial crisis: A financial crisis is a disruption to financial markets in which adverse selection and moral hazard problems become much worse, so that financial markets are unable to efficiently channel funds to those who have the most productive investment opportunities. As a result, a financial crisis can drive the economy away from an equilibrium with high output in which financial markets perform well to one in which output declines sharply. The asymmetric information framework explains the patterns in the data and many features of these crises which are otherwise hard to explain. It indicates that financial crises have effects over and above those resulting from bank panics and therefore provides a rationale for an expanded lender-of-last-resort role for the central bank in which the central bank uses the discount window to provide liquidity to sectors outside of the banking system.     

Household debt and spending during the financial crisis: Evidence from Danish micro data

We use data for nearly 500,000 Danish households to study the relationship between household leverage prior to the financial crisis of 2007–2009 and the development in spending over the course of the crisis. We find a strong negative correlation between pre-crisis leverage and the change in spending during the crisis. This reflects that highly levered households spent a larger share of their income than their less-levered peers prior to the crisis, resulting in larger increases in debt in these years. Once we condition on the size of the pre-crisis change in debt, a high level of debt is no longer associated with a larger spending decline. Our results suggest that the larger decline in spending among high-leverage households is the result of a spending normalization pattern that is also found in other years, rather than a causal effect of high debt levels suppressing household spending during the crisis.     

财务危机预测模型的构建

基于Logistic回归模型,选取中国制造业上市公司作为样本对财务危机预测进行研究。从企业的盈利能力、营运能力、偿债能力、成长能力、现金流量等方面出发,选取了10个财务预警指标,经过回归分析得出,总资产收益率、总资产周转率、资产负债率、主营业务增长率、经营活动现金净流量对负债的比率五项财务指标对上市公司发生财务危机有重要影响。从而提出要从提高盈利能力、提升营运能力、增强偿债能力、提高成长能力、保障现金流的充足几方面来应对财务危机。     

Modeling,analysis and mitigation of contagion in financial systems

Recent financial turmoil (e.g., the 2008–2009 global financial crisis) has resulted in financial contagion-induced instability becoming one of the major concerns in the fields of economics and finance. In this paper, we extend the network analysis of financial contagion from three perspectives. First, given that cross-holding of claims and obligations among financial institutions can be viewed as input-output linkages, we model the financial system and the contagion mechanism by introducing the classic Leontief input–output framework. Second, based on this modeling process, we propose a simple contagion algorithm to study how financial system heterogeneity influences its stability. Third, to mitigate financial contagion, we propose several concrete intervention policies based on two widely used prudential approaches—forced mergers and capital injections. The performance of these intervention policies is then evaluated by comprehensive numerical experiments. Our study has significant implications for financial regulation and supervision.     

Markets contagion during financial crisis: A regime-switching approach

Within a Markov regime-switching VAR framework, we investigate the contagion effects among the stock market, real estate market, credit default market, and energy market covering the most recent financial crisis period when markets experience regime shifts. The results demonstrate that the watershed of regimes occurs around the start of the subprime crisis in 2007, after which the “risky” regime dominates the evolution of market chaos. During the financial crisis, excluding their own shocks, stock market shock and oil price shock are the main driving forces behind the credit default market and stock market variations, respectively. The energy market also appears to be more responsive to the stock market movements than the shocks originating from housing and credit markets. However, the impacts from the credit default market on the real estate market are not significant as expected.     

The countercyclical role of Italian local banks during the financial crisis

The article analyses the role of local banks in Italy during the 2008–2009 crisis from the perspective of the relationship lending model. During the crisis, the risk of cascading failures of financial organizations has dramatically increased, thus causing a return of attention to local banking as a possible source of countercyclical behaviours in the financial markets thanks to their ability to establish fiduciary long-term relationships with small businesses.

The purpose of this article is to test this hypothesis and to disentangle the response of local banks during the financial turmoil according to their governance structure and location. Our results show that non-independent local banks and, to a limited extent, cooperative banks located in the rural area actually played a significant countercyclical role across the crisis. Policy implications suggest that prudential supervision should rethink the indicators of systemic risk in order to differentiate banks according to their capability of mitigating it.     

Effects of financial constraints on export performance of firms during the global financial crisis: microeconomic evidence from Korea

This study uses a manufacturing firm-level panel data set of South Korea for 2006–2013 to investigate the effect of financial constraints on the export performance of firms, with particular emphasis on the corporate ownership structure. The empirical results show that foreign multinational corporation (MNC) subsidiaries are not affected by financial constraint during both crisis and noncrisis periods, implying advantages of foreign ownership. However, domestic firms suffer more from financial constraints on exports during crisis years. In particular, domestic firms without parent firms are financially constrained during both crisis and noncrisis periods. However, those with parent firms do not experience financial constraints during noncrisis periods, although they too suffer from them during crisis periods. Thus, parent–subsidiary linkage among domestic firms plays an important role in alleviating financial constraints on export activity in noncrisis years but not as much during crisis years. Therefore, domestic parent firms exhibit less resilience to the global financial crisis, in comparison to foreign MNC parent firms.     

全球金融危机对台湾决策思维的影响

2008年全球金融海啸使得发达国家面对自上世纪30年代以来最大的衰退，但是发展中国家如金砖四国却依然持续发展。许多经济学家严厉地警告，家计单位及企业的消费支出减少，而对产出的影响更为严重，此举迫使台湾不得不通过扩大消费的方式，来挽回疲弱的经济力。本文针对此次全球金融危机对于台湾当局在因应策略上，关于全球金融体制的崩溃分析、有关当局的处理布局、国际经济组织及先进国家处理经验及建立新的清算机制等因应之道做分析与探讨，提供政策建议，希望封尔後的金融布局有所帮助。     

中国金融危机法构建的探讨

本次震撼全球的美国金融危机给世人敲响了金融危机不定时爆发的警钟。全球化背景下金融危机的传染性更强、金融风险更大。中国相对脆弱的金融体系需要探索如何防范金融系统性风险,如何健全金融监管体系的制度与法制建设。随着人民币国际化过程深入,制定并颁布《金融危机法》能克服目前金融监管纵向监管体系缺陷,对提高我国金融监管机构应对金融危机能力、稳定金融市场与保增长具有重要意义。     

The Korean financial crisis and the soft budget constraint

A panel of Korean firms is used to test for the soft budget constraint (SBC) in bank lending before and after the 1997–1998 financial crisis. SBC is present if a firm can borrow from its bank despite being in financial distress, which we define by a low Altman's z-score. We find that prior to 1997 financially distressed firms were able to borrow while after the crisis their ability to borrow declined substantially. We also demonstrate that SBC was a significant factor in the firms’ propensity to default during the crisis.     

Investor sentiment and the financial crisis: a sentiment-based portfolio theory perspective

The article proposes a portfolio model subjected to a constraint that captures the investor’s goal, with maximum estimation of expected return that is affected by investor sentiment. And we give a solution of the portfolio model by exploring the geometric features. Furthermore, we discuss the relationship between investor sentiment and the financial crisis by analysing the optimal allocation. The results show that: when investor sentiment is low enough, the investor should reject the investment, this condition leads the depression financial market to prevail, then the financial crisis erupts; when investor sentiment is modest, the financial crisis is difficult to erupt unless the decline of investor sentiment is quick and deep; but there is a special status that the financial crisis is caused by other factors rather than by investor sentiment; and only improving investor sentiment cannot move away from the financial crisis.     

Long-term investment sensitivity to cash flow and financial crisis

This study examined investment–cash flow sensitivity in unconstrained and constrained firms from 1980 to 2010 in a sample of Italian manufacturing firms. Investment sensitivity to cash flow decreased over time, and financially constrained firms showed little difference in the decline compared with unconstrained firms. Last, investment sensitivity to cash flow increased during the financial crisis of 2008.     

Understanding spread in the electronic futures markets: financial crisis perspective

This article analyses bid–ask spreads in U.S. electronic futures markets around the recent financial crisis. We decompose the bid–ask spread into three components – order processing, inventory holding and adverse selection costs – and show that adverse selection costs increased the most during the crisis while order processing costs are the largest cost component. Volume significantly affects inventory holding and order processing costs, whereas volatility only influences inventory holding costs. The crisis period had a significant effect on these relations. This study extends the existing literature on liquidity in equity to futures markets.     

美国金融危机成因分析及对中国的警示

美国金融危机引发全球金融市场动荡。这场金融危机从美国的房地产市场开始，以惊人的速度蔓延，波及至信贷市场、资本市场，封全球尤其是西方金融机构和金融市场造成重大冲击，短期内升级为全球金融风暴。中国目前正处于资产价格上涨、信贷投放过度的经济环境之中，美国的金融危机给中国敲响了警钟。本文通过描述此次危机的发展脉络，在分析美国金融危机背景的基础上，从强化房地产按揭贷款业务风险管理，审慎推进资产证券化等六个方面得出了对中国的警示。     

Modelling the causes and manifestation of bank stress: an example from the financial crisis

In this study, I model the predictors and manifestation of bank stress during the financial crisis using a Multiple Indicator Multiple Cause model. Unlike most early warning models that predict failure probabilities, this article describes a framework for predicting a broader notion of bank stress that need not rely on regulatory decisions. As such, this method can be easily applied to large institutions, and avoids the complications associated with modelling a regulatory decision such as failure or a CAMELS downgrade. Using bank reliance on Term Auction Facility funds and the out-of-sample incidence of failures and acquisitions, I demonstrate that the measure of bank stress generated here accords with other notions of bank-level distress. Finally, this method catalogues predictors of distress during the financial crisis. Thus, this article can help assess the validity of several recent regulatory proposals. I find that those banks entering the crisis with more Tier 1 capital, more liquid balance sheets, and relatively stable liabilities subsequently came under less stress. These findings support the Basel III recommended increases in banks’ capital adequacy, liquidity and stable funding.