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February 26, 2026 

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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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INNOVATION PROFIT

Economic profit, the difference between the total revenue received by a firm and the total opportunity cost of production, that is attributable to innovation, the initial application of new products, technologies, or ideas. Innovation profit is one of two sources of economic profit. The other is monopoly profit that arises due to market control. The generation of innovation profit is an important incentive that by rewarding individual innovative behavior enables society-wide benefits from the resulting innovations.

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APLS

BLACK DISMALAPOD
[What's This?]

Today, you are likely to spend a great deal of time searching the newspaper want ads seeking to buy either a coffee cup commemorating the first day of winter or a video game player. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?

John Maynard Keynes was born the same year Karl Marx died.
"One person with a belief is equal to a force of ninety-nine with only interests."

-- John Stuart Mill

LRMC
Long Run Marginal Cost
A PEDestrian's Guide
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