A brute-force nested simulations approach to capture risk interdependencies is infeasible with current resources available to insurers. It would require 1,000 or more risk-neutral simulations to produce a single stochastic scenario of the full risk distribution. This paper delves into finding an automated way to identify and remove outliers. We discuss the following:
- A simple outlier deletion technique and its limitations
- A powerful method known as Cook’s distance
- A few alternative machine learning approaches
- Conclusions and areas for further research