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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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YELLOW CHIPPEROON
Your compete MICRO*scope for today
You are the type of person who would rather spend a day at the shopping mall than anything else under the sun. Family and friends pack a lunch, and a dinner, when they join you for a trip to the shopping mall. Today, you are likely to spend a great deal of time surfing the Internet wanting to buy either pink cotton balls or a genuine down-filled comforter. Be on the lookout for crowded shopping malls. You should consider shopping at stores or businesses beginning with the letter Q, but do not buy any products with a serial number or product code containing the number 220646. Your preferred shopping venue is shopping malls. Your special symbol is the asterisk (*).
Is this You?
As a Yellow Chipperoon, you are happy, happy, happy. You enjoy everything about life and about shopping. You love shopping. You love buying. You love spending. You love to compare products and prices. You love the crowds. You love chatting with the store clerks. You love every bit of the buying process. Nothing dissuades you from having a good time shopping, whether you're buying a box of facial tissues or a new house. Does it get any better than spending an afternoon at the shopping mall? No way!
This isn't me! What am I?
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PERFECT COMPETITION, REALISM Perfect competition is an idealized market structure that does NOT exist in the real world. While some real world industries might come relatively close to one or two of the four key characteristics of perfect competition, none matches all four sufficiently that they can be declared PERFECTLY competitively. Some industries come close on the large number of small firms and the identical product characteristics. A few industries have relatively good, although not perfect, information about prices and technology. However, almost all industries fall far short of the perfect mobility characteristics.
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Scraping Up The POLLUTIONOne of Shady Valley's featured factories is Mona Mallard's Duct Tape Industries. It's the world's leading producer of duct tape -- that shiny, seemingly omnipresent, cloth-like tape that's used for everything EXCEPT ventilation ducts. Mona Mallard's Duct Tape Industries also employs thousands of voting, taxpaying Shady Valley residents. The amount of campaign money, legal and otherwise, contributed by Mona Mallard herself to Shady Valley politicians is, well, incalculable. All of this means that our little pedestrian exploration through the backlot dumping ground of Mona Mallard's Duct Tape Industries main production plant puts us on very, VERY sensitive turf. The reason, of course, is that the duct tape plant has been discarding sticky, toxic, gooey junk onto the ground. This is a potentially hazardous situation, not only because this sticky, toxic, gooey junk appears to be leaking into the Shady Valley River, but because a Mona Mallard's Duct Tape Industries security guard is headed in our direction. Rather than confront this guard, I suggest we spend our time exploring the problems of pollution. RUN!
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The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
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"No task is a long one but the task on which one dare not start: It becomes a nightmare. " -- Charles Baudelaire, poet-critic
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TIBOR
Tokyo Interbank Offered Rate (Japan)
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