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PERFECT COMPETITION AND EFFICIENCY: Perfect competition is the idealized market structure that achieves an efficient allocation of resources. The conditions of perfect competition, including (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology, ensure that perfect competition efficiently allocates resources. This is in fact the purpose of perfect competition: a market structure that illustrates perfection, the best of all possible resource allocation worlds. The real world falls short of this perfection.

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MARGINAL REVENUE CURVE, MONOPOLISTIC COMPETITION

A curve that graphically represents the relation between the marginal revenue received by a monopolistically competitive firm for selling its output and the quantity of output sold. Because a monopolistically competitive firm is a price maker and faces a negatively-sloped demand curve, its marginal revenue curve is also negatively sloped and lies below its average revenue (and demand) curve. A monopolistically competitive firm maximizes profit by producing the quantity of output found at the intersection of the marginal revenue curve and marginal cost curve.

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APLS

ORANGE REBELOON
[What's This?]

Today, you are likely to spend a great deal of time flipping through the yellow pages hoping to buy either storage boxes for your winter clothes or several magazines on time travel. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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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.
"Success doesn't come to you . . . you go to it "

-- Marva Collins, Educator

LCH
Life Cycle Hypothesis
A PEDestrian's Guide
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