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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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AUTONOMOUS EXPENDITURES Expenditures on aggregate production by the four macroeconomic sectors that do not depend on income or production (especially national income or even gross domestic product). That is, changes in income do not generate changes in these expenditures. Each of the four aggregate expenditures--consumption, investment expenditures, government purchases, and net exports--have an autonomous component. Autonomous expenditures are affected by the ceteris paribus aggregate expenditures determinants and are measured by the intercept term of the aggregate expenditures line. The alternative to autonomous expenditures are induced expenditures, expenditures which do depend on income.
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GREEN LOGIGUIN
[What's This?]
Today, you are likely to spend a great deal of time searching the newspaper want ads seeking to buy either a country wreathe or galvanized steel storage shelves. Be on the lookout for letters from the Internal Revenue Service.
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This isn't me! What am I?
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In 1914, Ford paid workers who were age 22 or older $5 per day -- double the average wage offered by other car factories.
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"The past cannot be changed. The future is yet in your power. " -- Hugh White, U.S. Senator
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BLUE
Best Linear Unbiased Estimator
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