HHI definition
Examples of HHI in a sentence
The HHI increases both as the number of firms in the market decreases and as the disparity in size between those firms increases.
The HHI is calculated by squaring the market share of each firm competing in the market and then summing the resulting numbers.
For new construction and re-roofing, all deck insulation shall be isocyanurate rigid foam insulation with aluminum foil or fiberglass facers, which meet federal specification HH-I- 1972/1 and Factory Mutual, report serial No J.I. XX0X0.XX.
We exclude HHI and the postal area dummies, as these variables are by definition spanned by the postal zone effects.
Herfindahl-Hirschman Index (HHI) has been used for measuring the competition among the trading licensees.