Categories
Model Risk & Validation Risk Modelling Stress Testing

In Search of a Post-Pandemic Modeling Paradigm

The COVID-19 saga has caused real difficulties for risk modelers. Loss projections made using pre-pandemic models soared in mid-2020, as global economic data spiraled downward. Portfolio performance, however, has held up very well under extremely difficult circumstances.

Categories
AI/ML Model Risk & Validation

Crisis and Post-Crisis Risk Modeling: Weighing Machines vs. Humans

When it comes to both the present and the future, which financial institutions are in a better position: those that rely on traditional, structural credit risk models or those that lean toward machine-learning models? Accuracy, intuitiveness, adaptability and behavioral shifts are among the factors that should be evaluated when answering this question – but we must first consider how different types of models have performed in 2020.

Categories
Model Risk & Validation Risk Modelling Stress Testing

Scenario Analysis in the Age of COVID-19: Do We Need a Different Approach?

2020 has been a challenging year for risk modelers, rife with uncertainty. What have we learned about the effectiveness of existing stress tests and the scenarios that drive them?

Categories
Model Risk & Validation

Model Risk and the COVID-19 Reality

Looking in the rearview mirror, it’s usually easy to see whether previously accepted risks were adversely realized. The moment you pay back the $20 I loaned you last month, for example, I know that the credit risk associated with our transaction has cured.

Categories
Risk Modelling

What is a forward-looking model?

Categories
Model Risk & Validation

It’s reality that’s broken at the moment, not necessarily the models!

Categories
Climate Risk

Great to see some empirical work on the link between hurricanes and mortgage default.

Categories
Model Risk & Validation

Very interesting discussion on CECL model risk by Kevin Oden.

Categories
IFRS9/CECL

How to Address CECL and IFRS 9 Weaknesses Exposed by COVID-19

During the 2008/09 global financial crisis, loan-loss accounting methods were unable to provide timely, accurate information to investors about the quality of loans held by banks. CECL and IFRS 9 were introduced to address these concerns but, for different reasons, have failed to transmit useful signals in the COVID-19 economy.

Categories
Stress Testing

Stress Testing in War and Peace: How to be Better Prepared for Future Crises

In 2020, for the first time in 11 years, a U.S. stress test was conducted while the economy was actually in recession. The test has been criticized by detractors who have argued that it did not take full account of COVID-19 scenarios and therefore should have been postponed. But are these concerns valid?