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PERFECT COMPETITION, LONG-RUN PRODUCTION ANALYSIS: In the long run, a perfectly competitive firm adjusts plant size, or the quantity of capital, to maximize long-run profit. In addition, the entry and exit of firms into and out of a perfectly competitive market guarantees that each perfectly competitive firm earns nothing more or less than a normal profit. As a perfectly competitive industry reacts to changes in demand, it traces out positive, negative, or horizontal long-run supply curve due to increasing, decreasing, or constant cost.

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INJECTIONS LINE

A graphical representation of the relation between the level of aggregate production and one or more injections. The three injections (non-consumption expenditures on aggregate production) are investment expenditures, government purchases and exports. The injections line sequentially adds, or layers, each of these three expenditures depending on the number of sectors used in the analysis (two, three, or four). The slope of the injections line depends on which if any of the expenditures are induced by aggregate production. The injections line is combined with the leakages line (containing saving, taxes, and imports) in the Keynesian injections-leakages model.

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APLS

ORANGE REBELOON
[What's This?]

Today, you are likely to spend a great deal of time browsing about a thrift store seeking to buy either a brown leather attache case or car battery jumper cables. Be on the lookout for slightly overweight pizza delivery guys.
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The penny is the only coin minted by the U.S. government in which the "face" on the head looks to the right. All others face left.
"Do not go where the path may lead, go instead where there is no path and leave a trail."

-- Ralph Waldo Emerson

GARP
Generalized Axioms of Revealed Preference
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