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DEMAND ELASTICITY AND TOTAL EXPENDITURE: The notion that price-induced changes in total expenditure for a good (price times quantity) depends on the relative price elasticity of demand. In particular, for relatively elastic demand (1 < E < ∞) changes in price cause total expenditure to change in the opposite direction. An increase in price causes total expenditure to fall and a decrease in price causes total expenditure to rise. For relatively inelastic demand (0 < E < 1) changes in price cause total expenditure to change in the same direction. An increase in price causes total expenditure to rise and a decrease in price causes total expenditure to fall. For unit elastic demand (E =1) price changes do not cause any change in total expenditure. Total expenditure is the same whether price increases or decreases.

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BILATERAL MONOPOLY

A market containing a single buyer and a single seller, or the combination of a monopoly market and a monopsony market. A market dominated by a profit-maximizing monopoly tends to charge a higher price. A market dominated by a profit-maximizing monopsony tends to pay a lower price. When combined into a bilateral monopoly, the buyer and seller both cannot maximize profit simultaneously and are forced to negotiate a price and quantity. Then resulting price could be anywhere between the higher monopoly price and the lower monopsony price. Where the price ends ups depends on the relative negotiating power of each side.

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Today, you are likely to spend a great deal of time at a flea market seeking to buy either a coffee cup commemorating yesterday or a replacement remote control for your television. Be on the lookout for door-to-door salesmen.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
"He who has begun has half done. Dare to be wise ‚ begin! "

-- Horace, poet, satirist

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Marginal Factor Cost
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