Firms try to control costs on their own.
D003363:Cost Control / Q000379:methods*; D006264:Health Benefit Plans, Employee / Q000458:organization & administration*; D006761:Hospitals; D007221:Industry; D007348:Insurance, Health / Q000458:organization & administration*; D010820:Physicians; D011243:Preferred Provider Organizations / Q000458:organization & administration*; D014481:United States