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HHI: The common abbreviation for the Herfindahl-Hirshman index (or the Herfindahl index), which is a measure of concentration of the production in an industry that's calculated as the sum of the squares of market shares for each firm. This is an alternative method of summarizing the degree to which an industry is oligopolistic and the relative concentration of market power held by the largest firms in the industry. The Herfindahl index gives a better indication of the relative market control of the largest firms than can be found with the four-firm and eight-firm concentration ratios.

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PROPORTIONAL TAX

A tax in which the proportion of income paid in taxes is the same for all income levels. A proportional income tax exists if ever taxpayer pays exactly the same tax rate relative to income regardless of income level. A proportional tax is one of three alternations. The other two are progressive tax, in which the proportion of income paid in taxes is greater for higher income levels, and regressive tax, in which the proportion of income paid in taxes is smaller for higher income levels.

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Today, you are likely to spend a great deal of time searching for a specialty store trying to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for the happiest person in the room.
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There were no banks in colonial America before the U.S. Revolutionary War. Anyone seeking a loan did so from another individual.
"If I'm selecting a group, the first thing I look for is a record of achievement . . . If (candidates achieve) in small things, there's a very good chance they'll perform well in big things. "

-- Edmund Hillary, explorer

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International Center for the Settlement of Investment Disputes
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