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sampleexam1micro

# sampleexam1micro - Econ 2106 Principles of Microeconomics...

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Econ 2106 Principles of Microeconomics Sample Exam 1 ____ 1. Demand is said to be elastic if a. the price of the good responds substantially to changes in demand. b. demand shifts substantially when the price of the good changes. c. buyers do not respond much to changes in the price of the good. d. the quantity demanded responds substantially to changes in the price of the good. ____ 2. If a person only occasionally enjoys a cup of coffee, his demand for coffee would be a. horizontal. b. inelastic. c. unit elastic. d. elastic. ____ 3. When the price of bubble gum is \$0.50, the quantity demanded is 400 packs per day. When the price falls to \$0.40, the quantity demanded increases to 600. Given this information and using the midpoint method, you know that the demand for bubble gum is a. inelastic. b. elastic. c. unit elastic. d. perfectly inelastic. ____ 4. Suppose the price of Twinkies is reduced from \$1.45 to \$1.25 and, as a result, the quantity of Twinkies demanded increases from 2,000 to 2,200. Using the midpoint method, the price elasticity of demand for Twinkies in the given price range is a. 2.00. b. 1.55. c. 1.00. d. .64. ____ 5. When the local used bookstore prices economics books at \$15.00 each, they generally sell 70 per month. If they lower the price to \$7.00 each they sell 90. Given this, we know that the elasticity of demand for economics books is a. 2.91, so this store should lower price to raise total revenue. b. 2.91, so this store should raise price to raise total revenue. c. 0.34, so this store should lower price to raise total revenue. d. 0.34, so this store should raise price to raise total revenue. ____ 6. Which of the following would have the most elastic demand? a. clothing b. blue jeans c. Levi jeans d. All three would have the same elasticity of demand since they are all related. 1

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____ 7. When demand is elastic in the current price range, a. an increase in price would increase total revenue because the decrease in quantity demanded is less than the increase in price. b. an increase in price would decrease total revenue because the decrease in quantity demanded is greater than the increase in price. c. a decrease in price would decrease total revenue because the increase in quantity demanded is smaller than the decrease in price. d. a decrease in price would not affect the total revenue. ____ 8. If a change in the price of a good results in no change in total revenue, a. the demand for the good must be elastic. b. the demand for the good must be inelastic. c. the demand for the good must be unit elastic. d. buyers must not respond very much to a change in price. ____ 9. You and your college roommate eat three packages of Ramen noodles each week. After graduation last month, both of you were hired at several times your college income. You still enjoy Ramen noodles very much and buy even more, but your roommate plans to buy other foods she prefers more. When looking at income elasticity of demand for Ramen noodles, yours would
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sampleexam1micro - Econ 2106 Principles of Microeconomics...

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