By: Russ Kamp, CEO, Ryan ALM, Inc.
Public pension plan sponsors frequently ask us about the impact of investing in a cash flow matching (CFM) strategy on the fund’s ability to achieve the ROA, which is also the discount rate used to value the plan’s liabilities under GASB accounting. As we’ve discussed many times, the plan’s ROA is actually a blend of ROAs with an “expected” return target assigned to each asset class, except for bonds, which uses the YTM of the index benchmark, and then those forecasts are averaged based on the weight of the exposure within the total asset base. So, despite the fact that GASB requires a single rate to discount the plan’s liabilities, multiple ROA targets have been used for years.
We believe that this process can, and should, be refined even more. We believe that the ROA target should be focused on the plan’s liabilities and not just the assets. With a liability focus one gets the following benefits when using multiple discount rates, including:
- Risk Matching: Applying different discount rates to different asset or liability segments can better reflect the varying risk profiles of those segments. For example, using a lower, market-based rate for secured benefits (through a CFM process) and a higher rate for more uncertain, investment-backed benefits can align present value (PV) calculations more closely with the actual risks being taken within the fund.
- Improved Accuracy: Multiple rates may provide a more accurate estimate of liabilities, especially when plan assets are invested in a mix of instruments with different risk and return characteristics.
- Transparency in Funding Status: By separating liabilities based on funding source or risk, stakeholders get a clearer picture of which obligations are well-secured (those that are defeased through CFM) and which may be more vulnerable to market fluctuations (the growth assets).
- Policy Flexibility: Using a blended discount rate can help manage the transition when lowering the overall discount rate, avoiding sudden shocks to contribution requirements.
We often discuss the need to bring an element of certainty to the management of DB pension plans, which have embraced uncertainty for years. Bifurcating your plans liabilities (retired lives and actives) and assets (liquidity and growth) into two buckets and applying different discount rates to each brings greater certainty to the management of a pension plan. There is no longer any guessing as to how your liquidity bucket will perform, as the asset cash flows are matched to liability cash flows with certainty and the fund’s cost savings and return are both know on the day that the portfolio is constructed. How wonderful!