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HERFINDAHL 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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ASSUMPTIONS, KEYNESIAN ECONOMICS The macroeconomic study of Keynesian economics relies on three key assumptions--rigid prices, effective demand, and savings-investment determinants. First, rigid or inflexible prices prevent some markets from achieving equilibrium in the short run. Second, effective demand means that consumption expenditures are based on actual income, not full employment or equilibrium income. Lastly, important savings and investment determinants include income, expectations, and other influences beyond the interest rate. These three assumptions imply that the economy can achieve a short-run equilibrium at less than full-employment production.
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"Nothing great has ever been achieved except by those who dared believe that something inside them was superior to circumstances. " -- Bruce Barton, Advertising executive
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Some Prime Stuff On INTEREST RATESOne unexpected benefit from our foot-paced view of the economy is loose change. Keeping our eyes to the ground has uncovered a nickel here, a quarter there, and an occasional dollar bill. My total is up to $137.65, an amount that I'm reluctant to keep on my person. Fortunately Interstate OmniBank has a branch very close the Dr. Nova Cain's dental office. I can deposit my booty into a safe, secure savings account under the watchful eyes of Interstate OmniBank employees, to be withdrawn if needed at a later date. Not only will Interstate OmniBank keep my $137.65 safe and secure, they'll also pay me an interest. That's I deal I just can't pass up.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time looking for the new strip mall out on the highway hoping to buy either a bottle of blackcherry flavored spring water or a travel case for you toothbrush. Be on the lookout for jovial bank tellers.
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A half gallon milk jug holds about $50 in pennies.
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MRP
Marginal Revenue Product
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