“The model is wrong!” so it is determined. All of the estimated output using the model becomes un-reliable immediately. And so is every other result calculated using the un-reliable output. So what is the impact of the model being “wrong” in the later calculations? To address this...

The broad economic damage of the COVID-19 pandemic poses the first major test of the bank regulatory reforms put in place after the Global Financial Crisis. Our study assesses the U.S. regulatory framework, with an emphasis on capital and liquidity requirements. Prior to the COVID-19 crisis,...

This paper provides an overview of stress-testing methodologies in Europe, with a focus on the advancements made by the European Central Bank's Financial Stability Committee Working Group on Stress Testing (WGST). Over a four-year period, the WGST played a pivotal role in refining stress-testing...

Intro -- Contents -- I. INTRODUCTION -- II. THE BASIC MODEL SETTING -- III. MODEL 1: A SIMPLE MODEL WITH NON-RANDOM DEFAULT PROBABILITIES -- IV. INTRODUCING THE POISSON APPROXIMATION -- V. MODEL 2: THE MODEL WITH KNOWN PROBABILITIES REVISITED -- VI. MODEL 3: THE MODEL WITH RANDOM DEFAULT...