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PERSONAL INCOME: The total income received by the members of the domestic household sector, which may or may not be earned from productive activities during a given period of time, usually one year. The primary use of personal income is to measure the income actually paid out to the household sector. After adjusting for income taxes, personal income forms the basis for consumption expenditures on gross domestic product.
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Lesson Contents
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Unit 1: The Exchange |
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Unit 2: The Numbers |
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Unit 3: A Graph |
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Unit 4: Adjustment |
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Unit 5: Efficiency | |
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Market Equilibrium
In this lesson, we'll see how buyers (discussed in the demand lesson) come together with sellers (discussed in the supply lesson) to exchange commodities using a market. More precisely, this lesson develops an abstract market model, or market analysis, that we can use to explain and understand a wide range of real world exchanges. - This lesson begins in the first unit, The Exchange, with an overview of the basic exchange process underlying markets, including the notion of equilibrium, the roles played by price and quantity, and the importance of competition.
- In the second unit, The Numbers, we work through a simple market analysis using demand and supply schedules, highlight both equilibrium and disequilibrium conditions.
- The third unit, A Graph, then carefully examines the notion of market equilibrium using demand and supply curves, which generates the widely used graphical model of the market.
- Moving onto the fourth unit, Adjustment, we use the graphical market model to investigate the automatic market responses to shortages and surpluses.
- The lesson concludes in the fifth unit, Efficiency, by considering the relation between market exchanges and efficiency.
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SIMPLE EXPENDITURES MULTIPLIER A measure of the change in aggregate production caused by changes in an autonomous expenditure that shocks the macroeconomy, when consumption is the ONLY induced expenditure. The simple expenditures multiplier is the inverse of one minus the marginal propensity to consume, or more simply the inverse of the marginal propensity to save. A related multiplier is the simple tax multiplier, which measures the change in aggregate production caused by changes in taxes.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time flipping through mail order catalogs wanting to buy either a looseleaf notebook binder or hand lotion, a big bottle of hand lotion. Be on the lookout for pencil sharpeners with an attitude.
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This isn't me! What am I?
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The Dow Jones family of stock market price indexes began with a simple average of 11 stock prices in 1884.
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"You just don't luck into things as much as you'd like to think you do. You build step by step, whether it's friendships or opportunities. " -- Barbara Bush, first lady
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JPE
Journal of Political Economy
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