The Herfindahl-Hirschman Index - FRASER
The Herfindahl-Hirschman Index Stephen A Rhoades, of the Board's Division of Research and Statistics, prepared this technical note The Herfindahl-Hirschman index, better known as the Herfindahl index, is a statistical measure of concentration It has achieved an unusual degree of visibility for a statistical index because of its use by
Measuring occupational concentration by industry A
Herfindahl-Hirschman index Occupations with the lowest industry concentrations, May 2012 Source: U S Bureau of Labor Statistics, special tabulation of May 2012 Occupational EmploymentStatistics data Note: Industry concentration is measured by the Herfindahl -Hirschmanindex, calculated by NAICS sector
Summary: Key words: Market structure, Market concentration
Herfindahl-Hirschman Index, and Its Summary: The paper analyses the phenomenon of market concentration in the context of the most popular industrial organization approaches: the struc-ture-conduct-performance (SCP) approach and the efficiency hypothesis (EH) The theory of market concentration evaluation is briefly presented, followed by
THE UNITED STATES HAS A MARKET CONCENTRATION PROBLEM
the Herfindahl-Hirschman Index and to entertain the concept of offsetting merger “efficiencies ” At the same time, they raised the level of market concentration that made it likely a merger would receive enforcement scrutiny In 2010, the thresholds were raised even more
HHINDEX - Stata
Herfindahl-Hirschman and Entropy t Develop a Stata command for markets whose composition can vary over time t Application to Italian Newspapers Markets at provincial
Diversity Matters - McKinsey & Company
The Herfindahl–Hirschman index (HHI) is a measure of market concentration and competition within an industry, measuring the size of a firm in relation to its industry The standard HHI is defined as the sum of the squares of the market shares of the largest firms within the industry, where the market shares are expressed as fractions
McKinsey Reports: Diversity Matters-Vivian Hunt, Dennis
Feb 02, 2015 · The Herfindahl–Hirschman index (HHI) is a measure of market concentration and competition within an industry, measuring the size of a firm in relation to its industry The standard HHI is defined as the sum of the squares of the market shares of the largest
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