"[T]his brief examines and compares the financial performance of insurers in the Medicare Advantage, individual, and fully-insured group markets, using data reported by insurance companies to the National Association of Insurance Commissioners ... [The authors] analyze how insurers’ gross margins vary across the three markets, over time, and among insurers ... The brief also examines medical expenses as a percentage of premiums collected (simple loss ratios) across these three markets."  MORE >>