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AGGLOMERATION: The clustering of several similar or related activities at the same location. Many industries have firms that tend to agglomerate, that is, locate very close to one another, leading to geographic concentration. For example, the motion picture industry is concentrated in California, the fashion industry is concentrated in New York, and the petroleum industry is concentrated in Texas. Agglomeration can be caused by accessibility to a concentrated natural resource (such as petroleum or sunny weather), but if often feeds upon itself through agglomeration economies. Firms in the same industry often have lower production cost when the located near their competitors.

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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

BLACK DISMALAPOD
[What's This?]

Today, you are likely to spend a great deal of time going from convenience store to convenience store wanting to buy either a how-to book on wine tasting or a bookshelf that will fit in your closet. Be on the lookout for broken fingernail clippers.
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This isn't me! What am I?

Natural gas has no odor. The smell is added artificially so that leaks can be detected.
"When we do the best we can, we never know what miracle is wrought in our life or in the life of another. "

-- Helen Keller, lecturer, author

JRE
Journal of Regulatory Economics
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