Search Results
Working Paper
Measuring capital adequacy supervisory stress tests in a Basel world
The United States is now committed to using two relatively sophisticated approaches to measuring capital adequacy: Basel III and stress tests. This paper shows how stress testing could mitigate weaknesses in the way Basel III measures credit and interest rate risk, the way it measures bank capital, and the way it creates countercyclical capital buffers. However, this paper also emphasizes the extent to which stress tests add value will depend upon the exercise of supervisor discretion in the design of stress scenarios. Whether supervisors will use this discretion more effectively than they ...
Discussion Paper
Stress Test Success and Bank Opacity
In contemplating the recent financial panic, it is easy to get lost in the weeds of repo markets and asset-backed securities and lose sight of the fact that, at the fundamental level, the panic was about inadequate information. Investors were uncertain about what particular assets were worth, and they were uncertain about which banks were exposed to those assets and to what degree. They were also uncertain about how the government would handle undercapitalized banks. It was against this background that the Treasury announced in February 2009 that the nineteen largest U.S. bank holding ...
Working Paper
Can We Take the “Stress” Out of Stress Testing? Applications of Generalized Structural Equation Modeling to Consumer Finance
Financial firms, and banks in particular, rely heavily on complex suites of interrelated statistical models in their risk management and business reporting infrastructures. Statistical model infrastructures are often developed using a piecemeal approach to model building, in which different components are developed and validated separately. This type of modeling framework has significant limitations at each stage of the model management life cycle, from development and documentation to validation, production, and redevelopment. We propose an empirical framework, spurred by recent developments ...
Working Paper
Stress Tests and Information Disclosure
We study an optimal disclosure policy of a regulator that has information about banks (e.g., from conducting stress tests). In our model, disclosure can destroy risk-sharing opportunities for banks (the Hirshleifer effect). Yet, in some cases, some level of disclosure is necessary for risk sharing to occur. We provide conditions under which optimal disclosure takes a simple form (e.g., full disclosure, no disclosure, or a cutoff rule). We also show that, in some cases, optimal disclosure takes a more complicated form (e.g., multiple cutoffs or nonmonotone rules), which we characterize. We ...
Report
Stress testing effects on portfolio similarities among large US Banks
We use an expansive regulatory loan-level dataset to analyze how the portfolios of the largest US banks have evolved since 2011. In particular, we analyze how the commercial and industrial and commercial real estate loan portfolios have changed in response to stress-testing requirements stipulated in the 2010 Dodd-Frank Act. We find that the largest US banks, which are subject to stress testing, have become more similar since the current form of the stress testing was implemented in 2011. We also find that banks with poor stress test results tend to adjust their portfolios in a way that makes ...
Journal Article
Resilience of Community Banks in the Time of COVID-19
Stress tests in December 2020 showed that the largest U.S. banks had strong capital levels and could continue to lend to households and businesses under hypothetical severe recessions. Assessing thousands of small community banks against similar criteria suggests that, while about one-fifth could fall below adequate capitalization, only a handful of those risk becoming insolvent. Overall, this is a reassuring view for small banks and their communities, suggesting that the risk of widespread bank failures leading to financial instability appears to be small.
Working Paper
Stress Tests and Small Business Lending
Post-crisis stress tests have altered banks? credit supply to small business. Banks affected by stress tests reduce credit supply and raise interest rates on small business loans. Banks price the implied increase in capital requirements from stress tests where they have local knowledge, and exit markets where they do not, as quantities fall most in markets where stress-tested banks do not own branches near borrowers, and prices rise mainly where they do. These reductions in supply are concentrated among risky borrowers. Stress tests do not, however, reduce aggregate credit. Small banks ...
Speech
The new era of supervision: progress to date and the road ahead
Remarks at the New York Bankers Association's Annual Meeting, New York City.
Working Paper
MODEL SECRECY AND STRESS TESTS
Conventional wisdom holds that the models used to stress test banks should be kept secret to prevent gaming. We show instead that secrecy can be suboptimal, because although it deters gaming, it may also deter socially desirable investment. When the regulator can choose the minimum standard for passing the test, we show that secrecy is suboptimal if the regulator is sufficiently uncertain regarding bank characteristics. When failing the bank is socially costly, then under some conditions, secrecy is suboptimal when the bank's private cost of failure is either sufficiently high or sufficiently ...
Discussion Paper
Are BHCs Mimicking the Fed's Stress Test Results?
In March, the Federal Reserve and thirty-one large bank holding companies (BHCs) disclosed their annual Dodd-Frank Act stress test (DFAST) results. This is the third year in which both the BHCs and the Fed have published their projections. In a previous post, we looked at whether the Fed’s and the BHCs’ stress test results are converging in the aggregate and found mixed results. In this post, we look at stress test projections made by individual BHCs. If the Fed’s projections are very different from a BHC’s in one year, do the BHC projections change in the following year to close this ...