HHI


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HHI

Herfindahl-Hirschman Index

An index of market concentration the U.S. Department of Justice uses to determine whether a monopoly is forming. The scale goes from zero to 10,000, with 10,000 indicating that a single company controls 100% of the market share in a given industry. An HHI of less than 1000 indicates a market with little concentration, which the Justice Department prefers. Any merger or acquisition leading to an increase of more than 100 when the HHI was previously greater than 1,800 may lead to antitrust action against the company involved.
References in periodicals archive ?
In contrast, for markets in which the HHI decreases when Associations are included, the declines are systematic.
If the merger were to go though, New Hampshire's HHI would go up 61 percent to 4,452--the second-highest HHI behind Indiana's 4,999.
The current version of the Anthem-Cigna deal could also leave Connecticut, Virginia, Kentucky, Georgia, Nevada, Colorado and Missouri with HHIs over 2,500, the AMA says.
The resultant HHI would be a prohibitively high figure of 3735 and calling very rigid attention from the FTC in the process.
Those who think they'll be better off financially 12 months from now (%): Millionaires 69 HHI of $500,000+ 75 All adults 64 Note: Table made from bar graph.
A tabela 2 representa os Indices de Herfindahl-Hirschman (HHI) do VBP da banana no Parana por meio dos seus niveis municipais, microrregionais e mesorregionais.
Launched in May 2010 by 13 hospital systems, Practice Greenhealth, Health Care Without Harm, and The Center for Health Design, HHI today has almost 800 hospitals participating in its programs.
She finds that the mean and median HHI values for MSAs declined slightly between 1993 and 1999, whereas HHI values increased for all nine Census regions, with the percentage increases ranging from 17 percent in the Pacific region to 421 percent in the South Atlantic region.
Following Kessler and McClellan (2000), we construct the revised HHI based on predicted patient flows.
"Our long standing alliance with Xtera is of high importance to HHI, as this helps showcase our level of expertise in this highly demanding field and cements our practical connections to the communications industry," said Hans-Joachim Grallert, managing director of HHI.
We assessed the reproducibility of neutralization and hHI tests for influenza virus A (H5N1) and evaluated the suitability of a standard (freeze-dried plasma pool, obtained from persons vaccinated with clade 1 subtype H5N1, called 07/150) for detection of antibody.