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PER UNIT TAX: A tax that is specified as a fixed amount for each unit of a good sold. Federal excise taxes on gasoline and cigarettes fall into this per unit tax category.

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ADVERSE SELECTION

An inefficient, bad, or adverse outcome of a market exchange that results because buyers and/or sellers make decisions based on asymmetric information. This commonly results in a market that exchanges a lesser quality good, what is termed the market for lemons. Two related problems resulting from asymmetric information are moral hazard and the principal-agent problem. Two methods of lessoning the problem of adverse selection are signalling and screening.

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APLS

YELLOW CHIPPEROON
[What's This?]

Today, you are likely to spend a great deal of time flipping through mail order catalogs trying to buy either a package of blank rewritable CDs or yellow cotton balls. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
"We tend to forget that happiness doesn't come as a result of getting something we don't have, but rather of recognizing and appreciating what we do have."

-- Fredrick Koeing

BPEA
Brookings Papers on Economic Activity
A PEDestrian's Guide
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