10.06.09
Posted in Uncategorized at 5:33 am by ceo
13 pages. Excerpt: "Health care providers and members of Congress have raised concerns that consolidation in the private health insurance industry may be resulting in less competitive markets and contributing to rising health insurance rates paid by consumers and employers. However, measuring the extent of changes in market competition over time or the effects of changes is challenging. . . . Despite [the] challenges, researchers have used the data available to study competition in health insurance markets, typically using one of two measures of competition: (1) HMO market concentration or (2) the number of HMOs in a market." (U.S. Government Accountability Office)
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