Principles of Economics- Mankiw (5th) 153

Principles of Economics- Mankiw (5th) 153 - CHAPTER 7...


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CHAPTER 7 CONSUMERS, PRODUCERS, AND THE EFFICIENCY OF MARKETS 159 3. It is a hot day, and Bert is very thirsty. Here is the value he places on a bottle of water: Value of first bottle $7 Value of second bottle 5 Value of third bottle 3 Value of fourth bottle 1 a. From this information, derive Bert’s demand schedule. Graph his demand curve for bottled water. b. If the price of a bottle of water is $4, how many bottles does Bert buy? How much consumer surplus does Bert get from his purchases? Show Bert’s consumer surplus in your graph. c. If the price falls to $2, how does quantity demanded change? How does Bert’s consumer surplus change? Show these changes in your graph. 4. Ernie owns a water pump. Because pumping large amounts of water is harder than pumping small amounts, the cost of producing a bottle of water rises as he pumps more. Here is the cost he incurs to produce each bottle of water: Cost of first bottle $1 Cost of second bottle 3 Cost of third bottle 5 Cost of fourth bottle
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