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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 5: Demand | Unit 2: Law of Demand
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Page: 5 of 20
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The law of demand is the basic principle underlying demand, one of our most important economic laws. A definition: The law of demand is an inverse relationship between demand price and the quantity demanded, ceteris paribus. - Inverse relationship means that people buy more of a good if the price is lower and less if the price is higher.
- In terms of scientific method, price causes quantity demanded. A change in the price causes a change in the quantity demanded.
Ceteris paribus is important to the law of demand.- Ceteris paribus means other things remain unchanged.
- Law of demand applies exclusively to the relationship between demand price and quantity demanded.
- All other things that can affect demand must remain constant to avoid distorting this relationship.
- Because demand is affected by many factors other than price, a buyer may buy larger amounts of a good even with a higher price.
- Other factors that affect demand are called demand determinants.
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AGGREGATE EXPENDITURES The total expenditures on gross domestic product undertaken in a given time period by the four sectors--household, business, government, and foreign. Expenditures made by each of these sectors are commonly termed consumption expenditures, investment expenditures, government purchases, and net exports. Aggregate expenditures (AE) are a cornerstone in the study of macroeconomics, playing critical roles in Keynesian economics, aggregate market analysis, and to a lesser degree, monetarism. In particular, aggregate expenditures are combined with the price level as aggregate demand.
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BEIGE MUNDORTLE [What's This?]
Today, you are likely to spend a great deal of time calling an endless list of 800 numbers looking to buy either super soft, super cuddly, stuffed animals or a large stuffed brown and white teddy bear. Be on the lookout for spoiled cheese hiding under your bed hatching conspiracies against humanity. Your Complete Scope
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Only 1% of the U.S. population paid income taxes when the income tax was established in 1914.
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"Progress always involves risk. You can't steal second base and keep your foot on first. " -- Frederick B. Wilcox
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IDA International Development Association
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