1. How the ACA's medical loss ratio rule protects consumers and insurers against ongoing uncertainty Author(s): Hall, Mark A., authorMcCue, Michael J., author Publication: [New York, N.Y.] : The Commonwealth Fund, July 2019 Subject(s): Insurance Carriers -- economicsInsurance, Health -- economicsUncertaintyConsumer BehaviorCost SharingForecastingInsurance, Health -- trendsHumansUnited StatesUnited States.