Bank size and risk-taking under Basel II

We analyze the relationship between bank size and risk-taking under the Basel II Capital Accord. Using a model with imperfect competition and moral hazard, we show that the introduction of an internal ratings based (IRB) approach improves upon flat capital requirements if the approach is applied uniformly across banks and if the costs of implementation are not too high. However, the banks’ right to choose between the standardized and the IRB approaches under Basel II gives larger banks a competitive advantage and, due to fiercer competition, pushes smaller banks to take higher risks. This may even lead to higher aggregate risk-taking.     

CDS and the Resolution of Financial Distress

The dramatic growth of Credit Default Swaps (CDS)—contracts that allow creditors to hedge their default exposure or take leveraged credit positions—threatens to complicate the resolution of financial distress in ways that existing reorganization methods and institutions have yet to adapt to. CDS contracts undermine a major premise that underlies current reorganization methods—namely, that the holder of legal rights has, and is motivated by, corresponding economic interests. Because hedging in the CDS markets immunizes creditors from the debtor's financial condition, they effectively separate their legal rights and economic interests. In this article, the authors discuss the challenges this separation poses for the resolution of distress both in and out of bankruptcy, and consider ways in which “on‐ground” realities may be reconciled with the legal structure that underlies the resolution of distress. At a minimum, disclosure of CDS positions in times of financial distress—along the lines of the disclosures presently required of equity investors under the Williams Act—are an essential first step toward a solution.     

Theory and Evidence on the Resolution of Financial Distress

We analyze a financially distressed owner-managed project. Themain results of the model are: (1) borrower default is an endogenousresponse to the anticipated restructuring–foreclosureoutcome; (2) the lender’s restructuring–foreclosuredecision depends critically on the interaction between projectvalue and industry liquidity; and (3) the lender waits for theindustry to recapitalize before selling assets obtained throughforeclosure. Empirical analysis of a large sample of defaultedcommercial real estate loans supports many of the model predictions,including restructuring–foreclosure outcomes that areconsistent with endogenous borrower default and firesale discountsthat vary depending on industry market conditions at the timeof foreclosure. (JEL G33)     

中央银行,金融稳定和新《巴塞尔协议》

对于中央银行的官员们而言,过去的二十或者三十年大事频发.在过去大部分时间内,与通货膨胀作战是各国中央银行的主要任务,直到最近我们才自认为获得了战斗的胜利.其实这场战斗不可能分出胜负,只是通货膨胀现在处于政策制订者的控制之下,不再是他们关注的首要目标.     

论巴塞尔协议与中国银行业监管

本介绍了巴塞尔资本协议的诞生、演变和深化历程,对照中国银行业监管中存在的现实问题,从推动银行业产权改革、建立和完善银行内部风险评估体系、树立审慎监管和合规监管理念、网上监管法规和制度结构、强化信息披露等方面,提出了构建适应巴塞尔新资本协议的我国银行业监管框架。     

Financial stability and Basel II

The Basel II Advanced Internal Ratings (AIRB) approach is compared to capital requirements set using an equilibrium structural credit risk model. Analysis shows the AIRB approach undercapitalizes credit risk relative to regulatory targets and allows wide variation in capital requirements for a given exposure owing to ambiguity in the definitions of loss given default and exposure at default. In contrast, the Foundation Internal Ratings Based (FIRB) approach may over-capitalize credit risk relative to supervisory objectives. It is unclear how Basel II will buttress financial sector stability as it specifies the weakest regulatory capital standard for large complex AIRB banks.      

Effects of the New Basel Capital Accord on Bank Capital Requirements for SMEs

Using data from three countries (US, Italy and Australia) and surveying related studies from several other countries in Europe, we investigate the effects of the New Basel Capital Accord on bank capital requirements for small and medium sized enterprises (SMEs). We find that, for all the countries, banks will have significant benefits, in terms of lower capital requirements, when considering small and medium sized firms as retail customers. But they will be obliged to use the Advanced IRB approach and to manage them on a pooled basis. For SMEs as corporate, however, capital requirements will be slightly greater than under the existing Basel I Capital Accord. We believe that most eligible banks will use a blended approach (considering some SMEs as retail and some as corporate). Through a breakeven analysis, we find that for all of our countries, banking organizations will be obliged to classify as retail at least 20% of their SME portfolio in order to maintain the current capital requirement (8%). JEL classification: G21, G28     

Financial Innovation,Basel Accord III,and Bank Value

I examine how financial innovation and Basel III capital requirements in Taiwan respond differently to banking crises and market competition. My panel data set comprises data from thirty-four banks for 2000-2012. I find a significant negative relationship between derivatives and the value of a bank and significant positive relationships among the capital adequacy ratio, bank-specific variables, and the value of a bank. Larger bank size and operational diversification tend to be positively associated with a bank's value, the holding of a relatively high amount of capital requirements, and nonperforming loans that are large. The latter result may simply reflect the scale of economy and improvement of efficiency in terms of financial innovation in the banking sector.     

Understanding Basel II Operational and Strategic Implications

In 2004/05 McKinsey and Company conducted a major international research project to understand the operational and strategic implications of Basel II for credit institutions and capital markets. In this paper, which is a condensed summary of the findings of this effort, Krall foresees a number of interacting developments influencing banks operational and strategic choices as well as the overall level of systemic risk in the global credit markets.     

Bank Resolution Plans as a catalyst for global financial reform

Bank Resolution Plans (Living Wills) should help with the resolution of systemically important financial institutions (SIFIs) in distress. They should be used to clarify and simplify the legal structure and make it commensurate with the functional business lines of the institution. Living Wills could also prove the right regulatory instrument to achieve two further innovations in the resolution of SIFIs with cross-border presence. First, they could incorporate burden sharing arrangements between countries enabling burden sharing on an institution by institution basis. However, there would remain problems arising from the incompatibility of the laws governing cross-border bank insolvencies. Many countries are currently introducing special laws covering the resolution of SIFIs. This creates a window of opportunity to use Living Wills to introduce a second innovation: a consistent legal regime for the resolution of SIFIs across the G20 countries.     

我国商业银行应对巴塞尔协议Ⅲ的策略研究

为了有效提高商业银行风险管理能力,巴塞尔银行监管委员在吸取金融危机经验和教训的基础上,对巴塞尔新资本协议中的金融监管举措进行了改进和强化.巴塞尔协议Ⅲ的推出将对商业银行业的经营管理产生重要影响,因此我国商业银行应采取各种手段积极推进巴塞尔协议新内容的实施.     

Extending the Basel II approach to estimate capital requirements for equity investments

Under the Basel II banking regulatory capital regime the capital requirements for credit exposures are calculated using the Asymptotic Single Risk Factor (ASRF) approach. The capital requirement is taken to be the contribution of an exposure to the unexpected loss on the bank’s diversified portfolio. Here we extend this approach to calculate capital requirements for equity investments. We show that in the case when asset values have a normal distribution an analytical formula for the unexpected loss contribution may be developed. We show that the capital requirements for equity investments are quite different to those of credit exposures, since equity investments can suffer substantial loss of value even when the underlying company has not defaulted.     

The cyclical effects of the Basel II capital requirements

Capital requirements play a key role in the supervision and regulation of banks. The Basel Committee on Banking Supervision is in the process of changing the current framework by introducing risk sensitive capital charges. Some fear that this will unduly increase the volatility of regulatory capital. Furthermore, by limiting the banks’ ability to lend, capital requirements may exacerbate an economic downturn. The paper examines the problem of capital-induced lending cycles and their pro-cyclical effect on the macroeconomy in greater detail. It finds that the capital buffer that banks hold on top of the required minimum capital plays a crucial role in mitigating the impact of the volatility of capital requirements.     

Bank Capital Regulation of Trading Portfolios: An Assessment of the Basel Framework

In setting minimum capital requirements for trading portfolios, the Basel Committee on Banking Supervision (1996, 2011a, 2013) initially used Value‐at‐Risk (VaR), then both VaR and stressed VaR (SVaR), and most recently, stressed Conditional VaR (SCVaR). Accordingly, we examine the use of SCVaR to measure risk and set these requirements. Assuming elliptically distributed asset returns, we show that portfolios on the mean‐SCVaR frontier generally lie away from the mean‐variance (M‐V) frontier. In a plausible numerical example, we find that such portfolios tend to have considerably higher ratios of risk (measured by, e.g., standard deviation) to minimum capital requirement than those of portfolios on the M‐V frontier. Also, we find that requirements based on SCVaR are smaller than those based on both VaR and SVaR but exceed those based on just VaR. Finally, we find that requirements based on SCVaR are less procyclical than those based on either VaR or both VaR and SVaR. Overall, our paper suggests that the use of SCVaR to measure risk and set requirements is not a panacea.     

Market Discipline and the Use of Stock Market Data to Predict Bank Financial Distress

We assess the extent to which stock market information can be used to estimate leading indicators of bank financial distress. We specify a logit early warning model, designed for European banks, which tests if market based indicators add predictive value to models relying on accounting data. We also study the robustness of the link between market information and financial downgrading in the light of the safety net and asymmetric information hypotheses. Some of our results support the use of market-related indicators. Other results show that the accuracy of the predictive power depends on the extent to which bank liabilities are market traded.      

Financial Distress and Bank Restructuring of Small to Medium Size UK Companies

We use a unique data set to study how U.K. banks deal with financially distressed small and medium-sized companies under a contractualist bankruptcy system. Unlike in the U.S., these procedures limit the discretion of courts to strict enforcement of debt contracts, without any dilution of creditors claims. We show that lenders and borrowers select a debt structure that avoids some of the market failures often attributed to a contractualist system. Collateral and liquidation rights are highly concentrated in the hands of the main bank, giving it a dominant position in restructuring or liquidating a defaulting firm. There is little litigation, and no evidence of co-ordination failures or creditors runs. However, there is some evidence that the banks dominance makes it lazy in monitoring, relying heavily on the value of its collateral in timing the bankruptcy decision.     

International Propagation of the Credit Crisis: Lessons for Bank Regulation*

The authors use a large sample of non‐U.S. banks to examine the origins and spread of the 2007–2009 crisis. Using both stock market and structural variables, they test whether the effects of the crisis on individual banks are better explained by crisis models or by the VaR‐type analysis of the Basel system. The latter emphasizes risk weightings for individual assets while ignoring linkages that could leave banks exposed to systemic shocks. Consistent with crisis models, the authors find that a small set of pre‐crisis measures of a bank's international linkages, leverage, and the fragility of its liability structure does a good job of discriminating between banks that suffered a large impact and those that did not. (Indeed, these measures explain almost 50% of the differences among banks' stock returns during the crisis period, and almost 40% of the changes in the variability of those returns.) The authors also provide evidence of both a direct linkage among banks' stock returns and an indirect linkage that could reflect either linkages in the real economy or common demands by investors for liquidity. The authors run a “horse race” that demonstrates that simple measures of book leverage were better predictors of bank performance than the Basel capital ratios. They find that banks with lower Basel risk weightings prior to the crisis proved, on average, to be more exposed to the crisis. The authors' explanation is that banks with lower Basel risk measures tended to operate with higher leverage and more aggressive funding strategies, which in turn exposed them to greater crisis risk (even as they conformed to the letter of the Basel system in terms of asset risk measures). Finally, the authors find no evidence that substandard governance was a separate contributing factor to crisis exposure. Banks with substantial international business that were exposed to systemic shocks had high governance scores.     

基层央行会计机构“流程再造”的可行性

流程再造在我国商业银行的实践中已充分体现出优越性,有助于提升银行的竞争力。人民银行会计结算方面的流程再造条件已完全具备和成熟。