Description: Collective Defined Contribution Plans offer an option in plan design that lies somewhere between defined benefit and defined contribution plans. This is achieved by fixing the contributions to the plan, but allowing benefits to fluctuate based on experience. This article provides a basic summary of how they can be structured. There are limitations to their use in the US, but are gaining in popularity elsewhere around the globe.

Description: The article first tries to determine a consensus view of what social security should accomplish and then tries to measure how well the current level of benefits succeeds in meeting these goals. Assessing benefit adequacy is an essential element in putting the overall program on a sound financing footing.