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LONG-RUN INDUSTRY SUPPLY CURVE: The relation between market price and the quantity supplied by all firms in a perfectly competitive industry after the industry as completed its long-run adjustment. The long-run industry supply curve effectively traces out a series of equilibrium prices and quantities the reflect long-run adjustments of a perfectly competitive industry to demand shocks. This long-run adjustment can take one of three paths: increasing, decreasing, and constant. These three adjustment paths indicate an increasing-cost industry, decreasing-cost industry, and constant-cost industry, respectively.
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Lesson 9: Consumer Demand | Unit 5: Taking Stock
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Page: 21 of 22
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Topic:
Two Considerations
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- The law of diminishing marginal utility sets the stage for understanding the law of demand.
- But it represents only part of the explanation.
- Two other considerations in our behind the scenes look at demand are:
- Constrained Choices
- If marginal utility is not zero, because of constrained utility maximization, then marginal utility is greater than zero and the price buyers are willing to pay is also greater than zero.
- Other Goods
- In the real world, I would not merely decide yes or no about the beach. I would weigh beach frolicking with other options.
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AGGREGATE DEMAND The total real expenditures on final goods and services produced in the domestic economy that buyers are willing and able to undertake at different price levels, during a given time period (usually a year). Aggregate demand, usually abbreviated AD, is an inverse relation between price level and aggregate expenditures. This is one half of the AS-AD (aggregate market) analysis. The other half is aggregate supply. Aggregate demand consists of four aggregate expenditures--consumption expenditures, investment expenditures, government purchases, and net exports--made by the four macroeconomic sectors--household, business, government, and foreign.
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BLACK DISMALAPOD
[What's This?]
Today, you are likely to spend a great deal of time browsing about a thrift store looking to buy either an ink cartridge for your printer or a rechargeable battery for your camera. Be on the lookout for telephone calls from long-lost relatives.
Your Complete Scope
This isn't me! What am I?
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A scripophilist is one who collects rare stock and bond certificates, usually from extinct companies.
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"We succeed in enterprises (that) demand the positive qualities we possess, but we excel in those (that) can also make use of our defects." -- Alexis de Tocqueville, Statesman
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WLS
Weighted Least Squares
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