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HERFINDAHL-HIRSHMAN INDEX: 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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SLOPE, NET EXPORTS LINE

The negative slope of the net exports line is based on the marginal propensity to import (MPM). Because net exports are exports minus imports, the induced change in imports causes an opposite change in net exports. As such, the slope of the net exports line is negative, less than zero (but greater than negative one). The slope of the net exports line affects the slope of the aggregate expenditures line and thus also affects the magnitude of the multiplier process.

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APLS

YELLOW CHIPPEROON
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Today, you are likely to spend a great deal of time searching for a specialty store trying to buy either an instructional DVD on learning to the play the oboe or a small, foam rubber football. Be on the lookout for florescent light bulbs that hum folk songs from the sixties.
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This isn't me! What am I?

Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Leadership is based on inspiration, not domination; on cooperation, not intimidation. "

-- William A. Ward

ISDA
International Swaps and Derivatives Association
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