Bank Diversification and Overall Financial Strength: International Evidence

There are many studies in the finance and management literature that examine the impact of diversification on performance. Yet, the literature remains inconclusive as for the potential benefits in terms of risk and return. The present study aims to re‐examine this issue, while proposing a methodological framework that integrates various bank performance and risk indicators into a single measure of financial strength. Using an international sample of commercial banks, we find that diversification in terms of income, earning assets, and on‐ and off‐balance sheet activities influences positively their financial strength. We also find that income diversification can be more beneficial for banks operating in less developed countries compared to banks in advanced and major advanced economies. However, we observe the opposite in the case of diversification between off‐balance sheet and on‐balance sheet activities. Furthermore, the results reveal that income and earning assets diversification can mitigate the adverse effect of the financial crisis on bank financial strength. We continue to find a positive relationship between diversification and financial strength when we account for nesting effects, endogeneity, as well as when using an alternative approach for the construction of the financial strength indicator.     

Islamic versus conventional banks in the GCC countries: A comparative study using classification techniques

This paper contributes to the empirical literature on Islamic finance by investigating the feature of Islamic and conventional banks in Gulf Cooperation Council (GCC) countries over the period 2003–2010. We use parametric and non-parametric classification models (Linear discriminant analysis, Logistic regression, Tree of classification and Neural network) to examine whether financial ratios can be used to distinguish between Islamic and conventional banks. Univariate results show that Islamic banks are, on average, more profitable, more liquid, better capitalized, and have lower credit risk than conventional banks. We also find that Islamic banks are, on average, less involved in off-balance sheet activities and have more operating leverage than their conventional peers. Results from classification models show that the two types of banks may be differentiated in terms of credit and insolvency risk, operating leverage and off-balance sheet activities, but not in terms of profitability and liquidity. More interestingly, we find that the recent global financial crisis has a negative impact on the profitability for both Islamic and conventional banks, but time shifted. Finally, results show that Logit regression obtained slightly higher classification accuracies than other models.     

Banking,debt, and currency crises in developed countries: Stylized facts and early warning indicators

We construct and explore a new quarterly dataset covering crisis episodes in 40 developed countries over 1970–2010. First, we present stylized facts on banking, debt, and currency crises. Using panel vector autoregression we find that banking and debt crises are interrelated and both typically precede currency crises, but not vice versa. Banking crises are the most costly in terms of the overall output loss, and output takes about six years to recover. Second, on a reduced sample we try to identify early warning indicators of crises specific to developed economies, accounting for model uncertainty by means of Bayesian model averaging. The most consistent result across the various specifications and time horizons is that significant growth of domestic private credit precedes banking crises, while rising money market rates and global corporate spreads are also leading indicators worth monitoring. For currency crises, we also corroborate the role of rising domestic private credit and money market rates and detect the relevance of domestic currency overvaluation. The role of other indicators differs according to the type of crisis and the warning horizon selected, but it mostly seems easier to find reliable predictors at a horizon shorter than two years. Early warning indicators of debt crises are difficult to uncover due to the low occurrence of such episodes in our dataset. We also employ a signaling approach to derive the threshold value for the best single indicator (domestic private credit), and finally we provide a composite early warning index that further increases the usefulness of the model.     

表外业务风险管理研究

最近十多年来,一个突出现象就是表外业务迅速发展,包括表外业务涉及的范围、规模、数量、服务、利润。表外业务收入在总收入中占比突飞猛进,表外业务已成为国内许多商业银行利润来源的重中之重。但由于我国商业银行表外业务起步较晚,在表外业务风险管理方面与西方相比有较大差距,这影响了我国商业银行的国际竞争力。本文以中国建设银行的为例,主要研究表外业务风险管理的现状,问题,并针对现状提出一些建议。     

Financial crises and the composition of cross-border lending

We examine the composition and drivers of cross-border bank lending between 1995 and 2012, distinguishing between syndicated and non-syndicated loans. We show that on-balance sheet syndicated loan exposures, which account for almost one third of total cross-border loan exposures, increased during the global financial crisis due to large drawdowns on credit lines extended before the crisis. Our empirical analysis of the drivers of cross-border loan exposures in a large bilateral dataset leads to three main results. First, banks with lower levels of capital favor syndicated over other kinds of cross-border loans. Second, borrower country characteristics such as level of development, economic size, and capital account openness, are less important in driving syndicated than non-syndicated loan activity, suggesting a diversification motive for syndication. Third, information asymmetries between lender and borrower countries became more binding for both types of cross-border lending activity during the recent crisis.     

Bank liquidity creation,monetary policy,and financial crises

This paper examines the interplay among bank liquidity creation (which incorporates all bank on- and off-balance sheet activities), monetary policy, and financial crises. We find that: (1) high liquidity creation (relative to trend) – particularly off-balance sheet liquidity creation – helps predict crises, controlling for other factors; (2) monetary policy has statistically significant, but economically minor effects on liquidity creation by small banks during normal times, and these effects are even weaker during financial crises; (3) monetary policy has very little effects on medium and large bank liquidity creation during both normal times and crises. These findings suggest that authorities may wish to monitor bank liquidity creation closely in order to predict and perhaps lessen the likelihood of financial crises. They might also consider other tools to control bank liquidity creation, such as capital and liquidity requirements.     

Do credit commitments compromise credit quality?

This paper focuses on banks’ risk-taking arising from potentially excessive growth of loans and off-balance sheet credit commitments. Credit quality is investigated both in macro and micro context, using a panel of 28 European countries over 2004–2014 and a panel of 478 European banks over 2004–2013. The dynamic panel data estimation results confirm that an increase in the ratio of credit commitments to total assets is a two year ahead warning indicator of growth in the ratio of non-performing loans and loan loss reserves. Simultaneous equation estimation exemplifies that the adverse effect of credit commitments on credit quality stems from the credit boom-bust context. As the economic impact of credit commitments to credit quality is significant compared to that of traditional credit quality determinants (real GDP growth and real growth in loans), the consideration of a credit commitments measure may improve timely recognition of credit risk accumulation episodes.     

The Impact of Supervisory Stress Tests on Bank Ex-Ante Risk-Taking Behaviour: Empirical Evidence from a Quasi-Natural Experiment

We use the Federal Reserve's stress-testing regime as a quasi-natural experiment to examine the impact of supervisory stress tests on bank ex-ante risk taking behaviour. Using a sample comprising large U.S. bank holding companies over the period from 2003Q1 to 2016Q4, we find that banks which are subjected to annual supervisory stress tests tend to reduce their overall risk by choosing asset portfolios of lower risk exposures. Nevertheless, this risk reduction happens mainly because stress-tested banks reduce the holding of low-risk assets rather than risky assets. We also find that stress-tested banks tend to reduce their on-balance sheet exposures rather than off-balance sheet exposures. Overall, our finding implies that, while supervisory stress tests can help to reduce the banks' overall risks, policy makers should also have a closer look at the mechanisms in which banks allocate risk to mitigate moral hazard and regulatory arbitrage behaviour.     

Fiscal sustainability in the presence of systemic banks: the case of EU countries

We provide a first attempt to include an off-balance sheet, implicit insurance to SIFIs into a consistent assessment of fiscal sustainability, for 27 countries of the European Union. We first calculate tax gaps à la Blanchard (OECD Economics Department Working Papers, No 79, 1990) and Blanchard et al. (Revue économique de l’OCDE, 1990). We then introduce two alternative measures of implicit off-balance sheet liabilities related to the risk of a systemic bank crisis. The first one relies on microeconomic data at the bank level. The second one is based on econometric estimations of the probability and the cost of a systemic banking crisis. The former approach provides an upper evaluation of the fiscal cost of systemic banking crises, whereas the latter one provides a lower one. Hence, we believe that the combined use of these two methodologies helps to gauge the range of fiscal risk.     

Public bank lending in times of crisis

This paper studies the role of government-owned banks in the event of financial crises. The study takes an empirical perspective focusing on bank lending. We compare the lending responses across government-owned and private banks to financial crises using the balance sheet information of 764 major banks headquartered in 50 countries over the period of 1994–2009. Using a nested panel regression framework that allows for parameter shifts in the bank lending equation, we find robust evidence that government-owned banks increase their lending during crises relative to normal times, while private banks’ lending decreases. Government-owned banks thus counteract the lending slowdown of private banks. The findings suggest that governments can play an active counter-cyclical role in their banking systems directly through government-owned banks.     

The 2007–2009 financial crisis and bank opaqueness

Doubts about the accuracy with which outside investors can assess a banking firm’s value motivate many government interventions in the banking market. Although the available empirical evidence is somewhat mixed, the recent financial crisis has reinforced a common assessment that banks are unusually opaque. This paper examines bank equity’s trading characteristics during “normal” periods and two “crisis” periods between 1993 and 2009. We find only limited (mixed) evidence that banks are unusually opaque during normal periods. However, consistent with theory, crises raise the adverse selection costs of trading bank shares relative to those of nonbank control firms. A bank’s balance sheet composition significantly affects its equity opacity, but we cannot detect specific balance sheet categories that have robust effects.     

Early warning systems and systemic banking crises in low income countries: A multinomial logit approach

This paper estimates an early warning system (EWS) for predicting systemic banking crises in a sample of low income countries in Sub-Saharan Africa. Since the average duration of crises in this sample of countries is longer than one year, the predictive performance of standard binomial logit models is likely to be hampered by the so-called crisis duration bias. The bias arises from the decision to either treat crisis years after the onset of a crisis as non-crisis years or remove them altogether from the model. To overcome this potential drawback, we propose a multinomial logit approach, which is shown to improve the predictive power of our EWS compared to the binomial logit model. Our results suggest that crisis events in low income countries are associated with low economic growth, drying up of banking system liquidity and widening of foreign exchange net open positions.     

Investor information and bank instability during the European debt crisis

Outside of financial crises, investors have little incentive to produce private information on banks’ short-term liabilities held as information-insensitive safe assets. The same does not hold during crises. We compare the information effects of different policy interventions. We measure information production using credit default swap spreads during the Global Financial Crisis and the European debt crisis. We study abnormal information production around major events and find that capital injections reduced abnormal information production while early European stress tests increased it. High levels of information production predict bank balance sheet contraction and higher government expenditures to support financial institutions.     

Banking crises,financial dependence,and growth

This paper contributes to the literature that analyzes the mechanisms linking financial shocks and real activity. In particular, we investigate the growth impact of banking crises on industries with different levels of dependence on external finance. If banks are the key institutions allowing credit constraints to be relaxed, then a sudden loss of these intermediaries in a system in which such intermediaries are important should have a disproportionately contractionary impact on the sectors that flourished due to their reliance on banks. Using data from 38 developed and developing countries that experienced financial crises during the last quarter century, we find that those sectors that are highly dependent on external finance tend to experience a substantially greater contraction of value added during a banking crisis in countries with deeper financial systems than in countries with shallower financial systems. Our results do not suggest, however, that on net the externally dependent firms fare worse in deep financial systems.     

Interest rates and bank risk-taking

A recent line of research views the low interest-rate environment of the early to mid 2000s as an element that triggered increased risk-taking appetite of banks in search for yield. This paper uses approximately 18000 annual observations on euro area banks over the period 2001-2008 and presents strong empirical evidence that low-interest rates indeed increase bank risk-taking substantially. This result is robust across a number of different specifications that account, inter alia, for the potential endogeneity of interest rates and/or the dynamics of bank risk. Notably, among the banks of the large euro area countries this effect is less pronounced for French institutions, which held on average a relatively low level of risk assets. Finally, the distributional effects of interest rates on bank risk-taking due to individual bank characteristics reveal that the impact of interest rates on risk assets is diminished for banks with higher equity capital and is amplified for banks with higher off-balance sheet items.     

美国次级抵押贷款危机对银行业改进的启示

美国次贷危机促使银行业积极应对房地产周期性调整,改进风险管理框架,进一步加强表外关联机构管理,优化区域布局.美国次贷危机对于中国银行业的警示作用大于直接影响.中国商业银行应当认识到房价快速上涨会掩盖大量的风险,应当重视房地产周期性调整风险,尤其是房地产信贷业务的信用风险、操作风险、政策性风险以及突发性事件引发的系统性风险,谨慎推进金融工具创新,专注于核心业务增长,优化区域布局,提高中国银行业的整体经营水平及抵御国内经济周期的实力,完善金融监管协调机制.     

基于信息披露视角的银行表外外汇融资业务探析

如何正确核算和反映表外外汇融资业务、提高银行资产负债管理水平、解决表外外汇融资业务快速发展与信息披露滞后的矛盾,是当前商业银行外汇融资业务面临的主要问题。本文对近年来表外外汇融资业务的发展情况进行了分析,并在剖析信息披露现状的基础上,提出改进建议,以期为银行加强资产负债管理、防范国际收支风险提供有益参考。     

Efficiency and risk in commercial banking: empirical evidence from East Asian countries

This paper analyses the effects of off-balance sheet (OBS) activities and various types of risks on the cost and profit efficiencies of banks in seven East Asian countries between 2001 and 2008. Cost and profit efficiency scores are estimated using the data envelopment analysis approach. The results of this analysis are then used to identify the impact of OBS activities and risk exposures on cost and profit efficiencies using a Tobit regression. Bank insolvency risk (as measured by z-scores) is positively related to profit efficiency, while interest sensitivity, size, equity to total assets and OBS exposures all impact on cost efficiency. The analysis of the impact of input and output slacks illustrates that in around 1 in 5 cases banks’ cost efficiency can be improved by adjusting the former variables, whereas in only around 1 in 100 cases a similar outcome is possible for profit efficiency.     

Banking crises and government intervention

Intervention has taken different forms in different countries and periods of time. Moreover, recent episodes showed that in front of an imminent crisis, the promise of no interventions made by governments is barely credible. In this paper we address the problem of resolving banking crises from the government perspective, taking into account the fact that preventing banking crises is crucial for the government. In addition, we introduce the moral hazard problem, inherent in the banking system, and consider the interaction between regulation, policy measures and banks’ behavior. To the best of our knowledge, this is the first paper that compares different policy plans to resolve banking crises in an environment where insufficiently capitalized banks have incentives to take risk, and the government has to decide whether to provide public services or impede crises. We show that when individuals highly value public services then the best policy in terms of welfare is to apply the tax on early withdrawals, as the government can transfer those taxes to the whole population by investing in public services (although at some cost). Conversely, when individuals assign a low value to consuming public services, recapitalization is the dominant policy. Finally, when the probability of a crisis is sufficiently high, capital requirements should be used.     

Flight to liquidity and the Great Recession

This paper argues that counter-cyclical liquidity hoarding by financial intermediaries may strongly amplify business cycles. It develops a dynamic stochastic general equilibrium model in which banks operate subject to agency problems and funding liquidity risk in their intermediation activity. Importantly, the amount of liquidity reserves held in the financial sector is determined endogenously: Balance sheet constraints force banks to trade off insurance against funding outflows with loan scale. A financial crisis, simulated as an abrupt decline in the collateral value of bank assets, triggers a flight to liquidity, which strongly amplifies the initial shock and induces credit crunch dynamics sharing key features with the Great Recession. The paper thus develops a new balance sheet channel of shock transmission that works through the composition of banks’ asset portfolios.