Impact of step-rating and price sensitivity on disenrollment and risk selection: the experience of a group practice HMO.
D003258:Consumer Behavior; D005249:Fees and Charges / Q000639:trends; D006264:Health Benefit Plans, Employee / Q000191:economics*; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D007348:Insurance, Health / Q000191:economics*; D011795:Surveys and Questionnaires; D014861:Washington