Health insurers face “modest” competition in many states' individual and small group markets, according to a newly published study (PDF).
Research by the Henry J. Kaiser Family Foundation found a single insurer claimed at least half of the individual health insurance market in 30 states and the District of Columbia. Market share was measured by the number of people enrolled in a health plan. Among small group insurers, one insurer enrolled at least 51% of those covered in 24 states and the District of Columbia.