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April 18, 2024 

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ABSTRACTION: Simplifying the complexities of the real world by ignoring (hopefully) unimportant details while doing economic analysis. Abstraction is often criticized because it's, well, it's JUST NOT REALISTIC. However, when done correctly (ignoring things that JUST DON'T MATTER), then the pursuit of knowledge is greatly enhanced by abstraction. For example, when travelling cross country along a high-speed interstate highway, a paper road map is a handy tool. It shows towns and cities along the way, the major intersections, rest stop locations, and other important points of interest. However, it ignores unimportant details. It doesn't realistically show the location of every tree, bush, or blade of grass. Why bother? This information won't enhance your road trip.

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PERFECT COMPETITION CHARACTERISTICS: The four key characteristics of perfect competition are: (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. These four characteristics mean that a given perfectly competitive firm is unable to exert any control whatsoever over the market.

     See also | perfect competition | assumption | mobility | industry | firm | technology | market | price taker | price maker | substitute | resources | barrier to entry | perfect competition and demand | perfect competition and efficiency | perfect competition and short-run supply curve | monopoly | monopolistic competition | oligopoly |


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PERFECT COMPETITION CHARACTERISTICS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2024. [Accessed: April 18, 2024].


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SELF CORRECTION, AGGREGATE MARKET

The automatic process in which the aggregate market adjusts from short-run equilibrium to long-run equilibrium. Self-correction results through shifts of the short-run aggregate supply curve caused by changes in wages (and other resource prices). The self-correction mechanism acts to close both recessionary gaps and inflationary gaps. The short-run aggregate supply curve increases (shifts rightward) due to lower wages to close a recessionary gap and decreases (shifts leftward) due to higher wages to close an inflationary gap.

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[What's This?]

Today, you are likely to spend a great deal of time searching the newspaper want ads trying to buy either yellow cotton balls or a set of steel-belted radial snow tires. Be on the lookout for telephone calls from long-lost relatives.
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This isn't me! What am I?

Parker Brothers, the folks who produce the Monopoly board game, prints more Monopoly money each year than real currency printed by the U.S. government.
"The road to success is always under construction. "

-- Lily Tomlin, Actress

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