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PERFECT COMPETITION, SHORT-RUN PRODUCTION ANALYSIS: A perfectly competitive firm produces the profit-maximizing quantity of output that equates marginal revenue and marginal cost. This production level can be identified using total revenue and cost, marginal revenue and cost, or profit. Because a perfectly competitive firm faces a perfectly elastic demand curve, it efficiently allocates resources by equating price and marginal cost. In addition, the marginal cost curve above the average variable cost curve is the perfectly competitive firm's short-run supply curve.

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FOUR-SECTOR, THREE-MARKET CIRCULAR FLOW

A circular flow model of the macroeconomy containing four sectors (business, household, government, and foreign) and three markets (product, factor, and financial) that illustrates the continuous movement of the payments for goods and services between producers and consumers, with particular emphasis on exports and imports. Other circular models are two-sector, two-market circular flow; two-sector, three-market circular flow; and three-sector, three-market circular flow.

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APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time browsing about a thrift store trying to buy either a box of multi-colored, plastic paper clips or several orange mixing bowls. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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A half gallon milk jug holds about $50 in pennies.
"Well done is better than well said. "

-- Benjamin Franklin, statesman, inventor

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