The Department of Defense (DoD) is considering ways to increase voluntary participation in the Reserves. One such proposal, the Continuum of Service (CoS), recognizes that people differ in their willingness and ability to accept activation and deployment. DoD asked CNA researchers to examine potential changes to the compensation system that would support voluntary participation in a CoS. Researchers concluded that policy-makers can use compensation tools to effectively implement a CoS, but that across-the-board compensation changes would not encourage participation. They also found no evidence to support the idea that implementing a CoS, or increasing compensation to support a CoS, would significantly increase reserve retention. Researchers say a cost-effective CoS will rely on targeted compensation.