1. Health insurance issuer participation and new entrants in the Health Insurance Marketplace in 2015 Author(s): Gunja, Munira Z., authorGee, Emily R., author Publication: [Washington, D.C.] : Department of Health and Human Services, Office of the Assistant Secretary for Planning and Evaluation, September 23, 2014 Subject(s): Health Insurance Exchanges -- utilizationHealth Insurance Exchanges -- economicsInsurance Coverage -- statistics & numerical dataEconomic CompetitionUnited StatesUnited States.