An Introduction to Stress Testing: Oil Prices, Default Probabilities and Credit Spreads

Over the last 18 months, the dramatic fall in oil prices has triggered a dramatic widening of credit spreads and default probabilities for oil-related firms. To a slightly lesser degree, the same kind of macro factor sensitivity in the credit spreads and default probabilities in firms closely associated with other basic commodities. This note explains the “reduced reduced form” modeling approach used in Kamakura’s KRIS default probability service to link forward looking macro factors to simulated default probabilities. We refer readers interested in more detail to the recent note from Kamakura “Bank of America and CCAR 2016 Stress Testing: A Simple Model Validation Example” and the references at the end of this note.

 

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