Gains from choice in health insurance.
D002755:Choice Behavior; D003258:Consumer Behavior / Q000191:economics*; D017047:Cost Sharing / Q000191:economics*; D006264:Health Benefit Plans, Employee / Q000191:economics*; D006801:Humans; D007348:Insurance, Health; D008329:Managed Care Programs / Q000191:economics*; D008962:Models, Theoretical; D014481:United States