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PERFECT COMPETITION AND DEMAND: The demand curve for the output produced by a perfectly competitive firm is perfectly elastic at the going market price. The firm can sell all of the output that it wants at this price because it is a relatively small part of the market. As a price taker, the firm has no ability to charge a higher price and no reason to charge a lower one. The market price facing a perfectly competitive firm is also the firm's average revenue and, most importantly, its marginal revenue.

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THREE-SECTOR KEYNESIAN MODEL

A Keynesian model of the macroeconomy that includes the three domestic sectors, the household sector, the business sector, and the government sector. This Keynesian model variation adds the government sector (or public sector) to the household and business sectors that make up the two-sector model. This model enables an analysis of government stabilization policies, especially how fiscal policy changes in government purchases and taxes can be used to close recessionary gaps and inflationary gaps. Equilibrium is identified as the intersection between the C + I + G line and the 45-degree line. Two related models are the two-sector Keynesian model and the four-sector Keynesian model.

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APLS

BLUE PLACIDOLA
[What's This?]

Today, you are likely to spend a great deal of time wandering around the shopping mall trying to buy either a wall poster commemorating the first day of spring or a lazy Susan for you dining room table. Be on the lookout for gnomes hiding in cypress trees.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Success is the ability to go from one failure to another with no loss of enthusiasm."

-- Sir Winston Churchill

WLS
Weighted Least Squares
A PEDestrian's Guide
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