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LERNER INDEX: The difference between price (p) and marginal cost (mc) as a fraction of price, that is [p-mc]/p. The Lerner index is usually taken as an indicator of market power because the larger the index, the larger the difference between price and marginal cost, that is, the larger the distance between the price and the competitive price. The Lerner index depends on the elasticity of demand. The Lerner index is also called the price-cost margin.

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INFORMATION SEARCH

The decision to seek out or produce information based on a comparison of the cost of acquiring the information and the benefit obtained from the information. Efficient information search is achieved with a equality between the marginal cost of search and the marginal benefit of search. Because the marginal cost of search is invariably greater than zero, search effort stops short of acquiring complete information.

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APLS

YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time calling an endless list of 800 numbers trying to buy either a set of luggage without wheels or a how-to book on wine tasting. Be on the lookout for cardboard boxes.
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This isn't me! What am I?

The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
"You can't build a reputation on what you are going to do."

-- Henry Ford, automaker

DPI
Disposable Personal Income
A PEDestrian's Guide
Xtra Credit
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