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AGGREGATE DEMAND: The total (or aggregate) real expenditures on final goods and services produced in the domestic economy that buyers would willing and able to make at different price levels, during a given time period (usually a year). Aggregate demand (AD) is one half of the aggregate market analysis; the other half is aggregate supply. Aggregate demand, relates the economy's price level, measured by the GDP price deflator, and aggregate expenditures on domestic production, measured by real gross domestic product. The aggregate expenditures are consumption, investment, government purchases, and net exports made by the four macroeconomic sectors (household, business, government, and foreign).
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PURPLE SMARPHIN
Your compete MICRO*scope for today
You are the type of person who has an exceedingly organized mind, but a somewhat cluttered life. Family and friends never, never, never get the best of you in any intellectual discussion. Today, you are likely to spend a great deal of time wandering around the shopping mall hoping to buy either a T-shirt commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki or a wall poster commemorating the 2000 Olympics. Be on the lookout for telephone calls from former employers. You should consider shopping at stores or businesses beginning with the letter M, but do not buy any products with a serial number or product code containing the number 446456. Your preferred shopping venue is the Internet. Your special symbol is the exclamation point (!).
Is this You?
As a Purple Smarphin, you are the brightest and most intelligent person you know. And that goes for shopping, too. You know exactly what you want. You know exactly what it costs. You know exactly when and where to buy. But, of course, shopping is only one of the many activities that attracts your intellectual attention. You shop when you need to and buy if have to, but shopping is not the end all of your life.
This isn't me! What am I?
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MARGINAL COST The change in total cost (or total variable cost) resulting from a change in the quantity of output produced by a firm in the short run. Marginal cost (MC) indicates how much total cost changes for a given change in the quantity of output. Because changes in total cost are matched by changes in total variable cost in the short run (total fixed cost is fixed), marginal cost is the change in either total cost or total variable cost. It is found by dividing the change in total cost (or total variable cost) by the change in output. Marginal cost is one of four cost concepts used in short-run production analysis. The other three are average total cost, average fixed cost, and average variable cost.
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Playing The STOCK MARKETThe hazards of being a pedestrian are many. Of course we have a good chance of crossing paths with a rabid bengal tiger that has highjacked a street cleaner and intends to whitewash every pair of jogging shoes encountered. Or a throng of overzealous religious fanatics might try to slip fresh flowers into our hands and literature into our pockets. And especially when we amble through the financial district, we might be crushed by falling stock market investors who have mistakenly BOUGHT HIGH and SOLD LOW. While the actions of the bengal tiger and overzealous religious fanatics might be understandable, what's so almighty important about the stock market that would make investors place the well-being of innocent pedestrians in jeopardy?
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Woodrow Wilson's portrait adorned the $100,000 bill that was removed from circulation in 1929. Woodrow Wilson was removed from circulation in 1924.
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"Intense concentration hour after hour can bring out resources in people they didn't know they had. " -- Edwin Land, inventor, entrepreneur
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ACIR
Advisory Council on Intergovernmental Relations
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