Description: An increased focus on pension plan cost and risk management has led plan sponsors to pursue innovative plan designs. This, in turn, is driving the need for actuaries to utilize new approaches to modeling the underlying market risks of such plan designs. The presenters will discuss advanced techniques to pension plan cash flow modeling that will ensure that the risks embedded in complex plan design features are fully captured. Specifically, a new dimension to cash flow modeling, benefit commencement year (in addition to payment year), will be introduced as well as the concept of 'collapsible' cash flow. Case studies will illustrate how techniques can be used in practice for cash balance plans, pension equity plans and other lump sum paying plans. Other risks such as form of payment and longevity will also be covered. This session is intended to meet the needs of actuaries and investment consultants focused on providing advice on risk management and investment strategy to sponsors of pension plans with complex design features.