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 ?
Fraunhofer HHI is pleased to partner with GigOptix on the development of advanced 100Gbps integrated tunable transceivers," said Dr.
For banking markets (metropolitan statistical areas [MSAs] or county) in which an acquisition of a failed bank occurred, I use these data to calculate HHI values for the June 30 immediately preceding a bank's failure.
Yet, when all 30 NBA teams are divided into two groups, teams above and below the league-wide median value of HHI, there is no evidence in any of the three seasons that more diverse teams commit on average significantly more turnovers per game than do less diverse teams (p=.
Community practitioners working in disadvantaged areas, or even affluent areas with pockets of deprivation, will be able to benefit from the various kinds of support that the HHI can offer.
The actual HHI of an occupied house is a simple and straightforward calculation once the amount of energy used for heating is determined based on billing records.
The HHI will change with entry, exit, and shifts in the distribution of shares across hospitals.
To test which measure of concentration matters most in explaining branch price, we regress branch prices on market HHI, state HHI, and a short set of control variables
Under the DOJ Guidelines, a market is considered unconcentrated if the post-merger HHI is under 1000, moderately concentrated if the postmerger HHI is between 1000 and 1800, and highly concentrated if the post-merger HHI exceeds 1800.
The generator's 60 kW output is conducted from the ac induction motor supplied from HHI itself or Chongqing Motor Works in China.
This has a desirable aggregation property--if all economically meaningful markets within a market area have the same sales, then the market area's HHI equals the markets' average HHI divided by the number of markets.
The HHI continues previously existing HUD programs to mitigate lead paint hazards and serves as an umbrella to coordinate mitigation of many different housing-related health threats to children and families.