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PERFECT COMPETITION CHARACTERISTICS: The four key characteristics of perfect competition are: (1) large number of small firms, (2) identical products sold by all firms, (3) freedom of entry into and exit out of the industry, and (4) perfect knowledge of prices and technology. These four characteristics mean that a given perfectly competitive firm is unable to exert any control whatsoever over the market.

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DEMAND ELASTICITY AND TOTAL EXPENDITURE

The notion that price-induced changes in total expenditure (price times quantity) depend on the relative price elasticity of demand. If demand is relatively elastic, then changes in price cause total expenditure to change in the opposite direction. If demand is relatively inelastic, then changes in price cause total expenditure to change in the same direction. If demand is unit elastic, then changes in price do not cause any change in total expenditure.

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RED AGGRESSERINE
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Today, you are likely to spend a great deal of time at a garage sale hoping to buy either a birthday greeting card for your aunt or a wall poster commemorating the moon landing. Be on the lookout for vindictive digital clocks with revenge on their minds.
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Rosemary, long associated with remembrance, was worn as wreaths by students in ancient Greece during exams.
"Things turn out best for the people who make the best of the way things turn out."

-- Art Linkletter

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