The Herfindahl Index, as the Herfindahl-Hirschman Index
is more commonly known, measures concentration.
Two common measures are the Finger-Kreinin index of export diversification (10) and the Herfindahl-Hirschman index
of market concentration, both published by UNCTAD.
and hospital density were used to measure the level of competition.
Two approaches include (1) measuring the changes in the Herfindahl-Hirschman Index
(HHI) of market concentration for three seed sub-markets and (2) an approach which determines expected changes in market prices that would result from mergers in a market featuring differentiated products, in the absence of new entry.
com, Priceonomics found that Stanford University, UCLA, MIT, Columbia University and Rice University are the most diverse as defined by the Herfindahl-Hirschman Index
, which is a statistical measure of diversity in various areas.
TABLE 3: Herfindahl-Hirschman index
(HHI), lower limit of HHI index (LI) of the Gross of Domestic Production of Pinion in Parana State (1995-2009).
The estimates of the Herfindahl-Hirschman Index
(HHI) of the Norwegian imports from the continents of Africa, Asia and Oceania, Europe, North and Central America, and South America are 2525.
The Herfindahl-Hirschman Index
(HHI) is a historical rule of thumb for market power.
This conclusion is unequivocally supported by using the Herfindahl-Hirschman Index
(HHI), a mathematical formula used by the Department of Justice (DOJ) and the Federal Trade Commission (FTC) in evaluations of the anti-competitive effect of an acquisition application.
The health insurance industry is already heavily concentrated in New Hampshire, topping the threshold of high concentration as measured by the Herfindahl-Hirschman Index
(HHI), which is often used by the federal government in investigating at antitrust violations.
Antitrust regulators often describe market concentration using the Herfindahl-Hirschman Index
Some notes on applying the Herfindahl-Hirschman index