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Chapter 7, Problem 4PA
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### Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050

#### Solutions

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### Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050
Textbook Problem

# It is a hot day, and Bert is thirsty. Here is the value he places on each bottle of water:Value of first bottle    $7Value of second bottle$5Value of third bottle    $3Value of fourth bottle$1a. 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.

Subpart (a):

To determine
The demand curve for water and the consumer surplus.

Explanation

We have given the value that the individual gives to each additional bottled of water and it can be tabulated as follows:

 Price Quantity demanded More than $7 0$5 to $7 1$3 to $5 2$1 to \$3 3

Subpart (b):

To determine
The demand curve for water and the consumer surplus.

Subpart (c):

To determine
The demand curve for water and the consumer surplus.

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