Feb. 23, 2010, 8:20 p.m. EST
Insurers' market power growing, study finds
AMA examination finds virtually all markets 'concentrated' By Russ Britt, MarketWatch
LOS ANGELES (
MarketWatch) -- Amid growing discontent with the nation's health insurers, a new study shows the market power of individual carriers continues to grow, with 99% of all metropolitan areas considered to be at near-monopolistic levels.
The study from the American Medical Association shows that 309 of the 313 metropolitan areas in 43 states are "highly concentrated," or at a level that otherwise would incur Department of Justice and Federal Trade Commission scrutiny.
That's up from a 2009 AMA study on the same subject, which showed that 94% of all major metropolitan markets were highly concentrated. The study cites the Herfindahl-Hirschman Index, or HHI, which is used by the DOJ and FTC in evaluating potential corporate mergers for possible antitrust concerns.
"Virtually all commercial health insurance markets in the United States are highly concentrated. These markets are ripe for the exercise of health insurer market power, which is detrimental to society," the study says. The study is from data collected in January 2007. ..........(more)
The complete piece is at:
http://www.marketwatch.com/story/insurers-market-power-growing-study-finds-2010-02-23