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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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EXPORTS LINE

A graphical depiction of the relation between exports sold to the foreign sector and the economy's aggregate level of income or production. This relation is most important for deriving the net exports line, which plays a minor, but growing role in the study of Keynesian economics. An exports line is horizontal which indicates that exports are totally autonomous, with no induced component. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking the net exports line, derived as the difference between the exports line and imports line, onto the consumption line, after adding investment expenditures and government purchases.

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APLS

BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time at a going out of business sale trying to buy either a weathervane with a cow on top or a box of multi-colored, plastic paper clips. Be on the lookout for fairy dust that tastes like salt.
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This isn't me! What am I?

The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
"The only profit center is the customer."

-- Peter Drucker, educator

LRAC
Long Run Average Cost
A PEDestrian's Guide
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