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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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PRODUCTION POSSIBILITIES

An analysis of the alternative combinations of two (or more) goods that an economy can produce with existing resources and technology in a given time period. Production possibilities analysis provides insight into the fundamentals of economic thinking, including the introduction of key economic concepts. This analysis usually centers on either a convex production possibilities curve (or frontier) that reflects alternative production combinations of two goods.

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Today, you are likely to spend a great deal of time searching the newspaper want ads seeking to buy either a pair of leather sandals that won't cause blisters or clothing for your kitty cats. Be on the lookout for cardboard boxes.
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
"Unless you are willing to drench yourself in your work beyond the capacity of the average man, you are just not cut out for positions at the top."

-- J. C. Penney, Retailer

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