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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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Lesson 21: Factor Demand | Unit 4: Determinants
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Page: 18 of 24
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- Because the demand for a factor of production is based on, or derived from, the demand of the output produced, should the product demand change, then so too will the factor demand.
- Changes in product demand are reflected by changes in the product price and marginal revenue.
- The factor demand curve presented in this diagram was derived based on a particular price, which was based on a particular demand.
- Increase In Product Demand
- Decrease In Product Demand
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INTEREST RATES, AGGREGATE EXPENDITURES DETERMINANT One of several specific aggregate expenditures determinants assumed constant when the aggregate expenditures line is constructed, and that shifts the aggregate expenditures line when it changes. A decrease in interest rates cause an increase (upward shift) of the aggregate expenditures line. An increase in interest rates cause a decrease (downward shift) of the aggregate expenditures line. Other notable aggregate expenditures determinants include consumer confidence, federal deficit, inflationary expectations, and exchange rates.
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PURPLE SMARPHIN
[What's This?]
Today, you are likely to spend a great deal of time flipping through the yellow pages trying to buy either a velvet painting of Elvis Presley or a wall poster commemorating yesterday. Be on the lookout for vindictive digital clocks with revenge on their minds.
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This isn't me! What am I?
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
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"The past is a foreign country; they do things differently there." -- Leslie Poles Hartley, Writer
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PHLX
Philiadelphia Stock Exchange
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