- The International Accounting Standards Board (IASB) revised their accounting standards for financial instruments, such as loans or mortgages, in response to the 2008 financial crisis in the United States and Europe.
- This resulted in the International Financial Reporting Standard 9, which became effective on or after January 1, 2018. The new standard requires banks to build
provisions for expected losses in their loan portfolio, using a more forward-looking approach that aims to result in a more timely recognition of credit losses. - -- Previously, impairment losses were only recognized to the extent of objective evidence of impairment, meaning a loss event needed to occur before an impairment loss could be booked. - To implement the new accounting rules, banks need to build models that can accurately evaluate a borrower's risk, with the probability of default being a key credit risk parameter.
- Classification techniques such as logistic regression and decision trees can be used to classify risky and non-risky loans, but survival analysis is needed for more accurate credit risk calculations as it estimates the time it takes for a customer to default.
[Slides]: Deep-learning-model-for-survival-analysis
[Notebook]: DeepSurv-PCHazard-CoxCC
Survival probabilities
Survival probabilities
Survival probabilities
