Description: 1993 SOA Annual Meeting, New York. This session discussion is about asset prepayment assumptions for regulatory cash-flow testing. Topics included: 1. The prepayment characteristics of corporate bonds with embedded options. 2. How much prepayment and redemption activity has taken place within that market. 3. Techniques that corporate bond issuers have used to retire debt prior to maturity. 4. The investment implications. 5. The impact that prepayments have on MBS price and return performance. 6. The challenges of prepayment modeling.