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INCOME-EXPENDITURE MODEL: A macroeconomic model, which captures the essence of Keynesian economics, is based on the equality between total income generated from gross domestic product and total expenditures on gross domestic product. The cornerstone of the income-expenditure model is the consumption function, which relates household consumption expenditures to income and gives rise to the aggregate expenditure line with the addition of investment, government purchases, and net exports. The intersection between the aggregate expenditure line at the 45-degree identifies equilibrium.
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Lesson Contents
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Unit 1: The Basics |
Unit 2: Three Totals |
Unit 3: Four More Measures |
Unit 4: Long-Run Cost |
Unit 5: Previewing Supply |
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Cost
- The first unit of this lesson, The Basics, begins this our study with a review of the opportunity cost notion and how it relates to business activity.
- In the second unit, Three Totals, we take a look at the three total cost measures, including total cost, total variable cost, and total fixed cost.
- The third unit, Four More Measures, then presents four additional cost measures -- average total cost, average variable cost, average fixed cost, and marginal cost.
- In the fourth unit, Long-Run Cost, we examine how scale economies and diseconomies affect cost in the long run.
- The fifth and final unit, Previewing Supply, then closes this lesson by previewing the importance of cost, especially marginal cost, to the supply decision by a firm.
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UNEMPLOYMENT, PRODUCTION POSSIBILITIES Unemployment is the condition that exists when some available resources are NOT engaged in the production of goods and services. In other words, some resources that could be used for production are not being used. This is indicated in production possibilities analysis by producing a combination of goods that places the economy inside the production possibilities curve.
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BLUE PLACIDOLA [What's This?]
Today, you are likely to spend a great deal of time at the confiscated property police auction seeking to buy either looseleaf notebook paper or a three-hole paper punch. Be on the lookout for slow moving vehicles with darkened windows. Your Complete Scope
This isn't me! What am I?
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Much of the $15 million used by the United States to finance the Louisiana Purchase from France was borrowed from European banks.
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"Look at the abundance all around you as you go about your daily business. You have as much right to this abundance as any other living creature. It's yours for the asking." -- Earl Nightingale
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SCF Survey of Consumer Finances
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