A health benefit model that is considered by its designers to be a hybrid of the defined contribution and defined benefit approaches. This model requires general categories of health services to be covered, but benefits could be added or deleted within limits. The employer or government then contributes a set amount ? or percentage of ? the premium for the purchased plan. Plans could set premiums at whatever dollar level they choose, with beneficiaries liable for any costs above the employer or government contribution. A Medicare demonstration designed to test a model similar to premium support began in 2010.