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DERIVATION, AGGREGATE EXPENDITURES LINE: An aggregate expenditures line, a graphical depiction of the relation between aggregate expenditures and the level of aggregate income or production, can be derived by sequentially adding expenditures by the four macroeconomic sectors (household, business, government, and foreign). This derivation process begins with the consumption line, then adds investment, government purchases, and finally net exports. The process actually generates three alternative aggregate expenditures lines based on the number of sectors included (two sector, three sector, and four sector).
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Lesson 9: Macro Basics | Unit 1: The Macroeconomy
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Page: 2 of 16
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Macroeconomics is the study of the entire economy, the aggregate economy. Microeconomics is the study of parts of the economy.- Economists first studied parts of the economy (markets, demand, supply, and prices), what we now call microeconomics.
- The Great Depression of 1930's, motivated economists led by John Maynard Keynes, to study macroeconomics.
Microeconomics and macroeconomics have their own principles, theories, and phenomena. Both are part of economics and each is intertwined with the other.- The macroeconomy affects microeconomic decisions.
- Microeconomic decisions affect the macroeconomy.
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AVERAGE REVENUE PRODUCT AND MARGINAL REVENUE PRODUCT A mathematical connection between average revenue product and marginal revenue product stating that the change in the average revenue product depends on a comparison between the average revenue product and marginal revenue product. If marginal revenue product is less than average revenue product, then average revenue product declines. If marginal revenue product is greater than average revenue product, then average revenue product rises. If marginal revenue product is equal to average revenue product, then average revenue product does not change.
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ORANGE REBELOON
[What's This?]
Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club hoping to buy either a flower arrangement for your aunt or a birthday greeting card for your uncle. Be on the lookout for defective microphones.
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This isn't me! What am I?
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The 1909 Lincoln penny was the first U.S. coin with the likeness of a U.S. President.
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"Executives who get there and stay suggest solutions when they present the problems. " -- Malcolm Forbes, business executive
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NASDAQ
National Assocation of Securities Dealers Automated Quote System
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