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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.
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Lesson 6: Market Supply | Unit 1: Selling Basics
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Page: 4 of 19
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- Supply as the range of prices and quantities that sellers are willing and able to sell at different prices.
- Why sellers must be both willing and able to sell a good to have a supply. While willingness can influence some supply, ability, which is based on production cost, is more important.
- Why supply includes a range of prices and quantities, not just a specific quantity.
- Why supply is analyzed during a given time period.
- That supply price as the minimum price sellers would be willing and able to accept for a given quantity.
- That quantity supplied is the specific quantity sellers would be willing and able to sell at a specific price.
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MARGINAL PROPENSITY FOR GOVERNMENT PURCHASES The change in government purchases induced by a change in income or production (national income or gross domestic product). The marginal propensity for government purchases (abbreviated MPG) is another term for the slope of the government purchases line and is calculated as the change in government purchases divided by the change in income or production. The MPG plays a role in Keynesian economics. It augments the slope of the aggregate expenditures line and is part of the multiplier process. A related marginal measure is the marginal propensity to consume.
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BROWN PRAGMATOX
[What's This?]
Today, you are likely to spend a great deal of time waiting for visits from door-to-door solicitors wanting to buy either pink cotton balls or a genuine down-filled comforter. Be on the lookout for the last item on a shelf.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
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"Sometimes when you innovate, you make mistakes. It is best to admit them quickly and get on with improving your other innovations. " -- Steve Jobs, Apple Computer founder
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M1
currency and coins held by the nonbank public plus checkable deposits issued by traditional banks, savings and loan associations, credit unions, and mutual savings banks
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