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IMPLICIT COST: An opportunity cost that does NOT involve a money payment or a market transaction. This should be contrasted with explicit cost that DOES involve a money payment or a market transaction. The common misconception among non-economists out there in the real world is that the term "cost" is synonymous with the term "payment," that is, all costs are explicit costs, to be a cost you have to give up some money. Well, I'm here to tell you that this isn't true. Cost is opportunity cost. It's the satisfaction NOT received from activities NOT pursued. It's the value of foregone production. And not all opportunity costs involve a money payment.

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HERFINDAHL INDEX

A measure of concentration of the production in an industry calculated as the sum of the squares of market shares for each firm. This is one method of summarizing the degree to which an industry is oligopolistic and the concentration of market control held by the largest firms in the industry. Two other measures of industry concentration are the four-firm concentration ratio and the eight-firm concentration ratio.

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BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time browsing through a long list of dot com websites hoping to buy either one of those "hang in there" kitty cat posters or a velvet painting of Elvis Presley. Be on the lookout for small children selling products door-to-door.
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This isn't me! What am I?

The 22.6% decline in stock prices on October 19, 1987 was larger than the infamous 12.8% decline on October 29, 1929.
"What gets measured gets done."

-- Peter Drucker, educator

JHR
Journal of Human Resources
A PEDestrian's Guide
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