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Working Paper
Cointegration test with stationary covariates and the CDS-bond basis during the financial crisis
This paper proposes a residual based cointegration test with improved power. Based on the idea of Hansen (1995) and Elliott & Jansson (2003) in the unit root testing case, stationary covariates are used to improve the power of the residual based Augmented Dickey Fuller (ADF) test. The asymptotic null distribution contains difficult to estimate nuisance parameters for which there is no obvious method of estimation, therefore we propose a bootstrap methodology to obtain test critical values. Local-to-unity asymptotics and Monte Carlo simulations are used to evaluate the power of the test in ...
Discussion Paper
The Pandemic's Impact on Credit Risk: Averted or Delayed?
The COVID-19 recession resulted in historic unemployment and a significant shock to much of the service sector. Despite these macroeconomic challenges, banks' risk-based capital buffers remain high and the number of bank failures remains low. Government relief programs, including the Coronavirus Aid, Relief, and Economic Security (CARES) Act, both directly and indirectly helped stabilize bank balance sheets during the crisis.
Discussion Paper
Banks' Backtesting Exceptions during the COVID-19 Crash: Causes and Consequences
Banks' numerous and simultaneous backtesting exceptions in March 2020, during the COVID-19-related market crash, would have amplified their already-large spike in market risk capital requirements in the absence of regulatory intervention. This note provides background on how backtesting exceptions affect capital requirements generally, the source of those exceptions during the COVID-19 crash, and how regulators exercised discretion to mitigate the unintended capital increase.