Description: Description of the mathematics involved when looking at low probability events within a company from the perspective of the C-Suite. The accumulation of small probability events leads to a much higher probability of at least one of them happening in a given period.

Description: This article highlights the fact that new requirements for disclosure of average liability duration and interest rates could lead to diversity in practice. It also recognizes that elements of the new disclosure requirements will enable financial statement users to perform their own crude estimates of these averages in ways that could help them to better understand the liabilities and to compare companies using consistent methods. Finally, the article describes how companies might also find value in such crude estimates.