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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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INFORMATION

The transfer of knowledge from one person to another. Information is a flow concept. It requires someone (or something) to do the sending and someone to do the receiving. Information is a valuable commodity that provides benefits, but also incurs an opportunity cost to produce, meaning information is never perfect or complete. The existence of asymmetric information (some have more information than others) gives rise to the problems of adverse selection, moral hazard, and the principal-agent problem.

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APLS

RED AGGRESSERINE
[What's This?]

Today, you are likely to spend a great deal of time calling an endless list of 800 numbers seeking to buy either a small palm tree that will fit on your coffee table or several magazines on fashion design. Be on the lookout for poorly written technical manuals.
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In the late 1800s and early 1900s, almost 2 million children were employed as factory workers.
"Never let the fear of striking out get in your way. "

-- Babe Ruth, baseball player

NLREG
Nonlinear Statistical Regression
A PEDestrian's Guide
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