Principles of Economics (12th Edition)
12th Edition
ISBN: 9780134078779
Author: Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher: PEARSON
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Question
Chapter 15, Problem 2.6P
(a)
To determine
The economic relationship between advertising and sales.
(b)
To determine
The advertising that the firm uses when the marginal cost of producing the commodity is $10 and the economic principle behind making such decision.
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Jabari's HookNLadder is the only company selling fire engines in the fictional country of Alexandrina. Jabari initially produced four trucks, but then
decided to increase production to five trucks. The following graph gives the demand curve faced by Jabari's HookNLadder. As the graph shows, in order
to sell the additional fire truck, Jabari must lower the price from $105,000 to $90,000 per truck. Notice that Jabari gains revenue from the sale of the
additional engine, but at the same time, he loses revenue from the initial four engines because they are all sold at the lower price.
Use the purple rectangle (diamond symbols) to shade the area representing the revenue lost from the initial four engines by selling at $90,000 rather
than $105,000. Then use the green rectangle (triangle symbols) to shade the area representing the revenue gained from selling an additional engine
at $90,000.
PRICE (Thousands of dollars per fire engine)
Jabari
165
150
135
120
105
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75
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45
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Jabari's HookNLadder is the only company selling fire engines in the fictional country of Alexandrina. Jabari initially produced four trucks, but then decided to increase production to five trucks. The following graph gives the demand curve faced by Jabari’s HookNLadder. As the graph shows, in order to sell the additional fire truck, Jabari must lower the price from $105,000 to $90,000 per truck. Notice that Jabari gains revenue from the sale of the additional engine, but at the same time, he loses revenue from the initial four engines because they are all sold at the lower price.
Use the purple rectangle (diamond symbols) to shade the area representing the revenue lost from the initial four engines by selling at $90,000 rather than $105,000. Then use the green rectangle (triangle symbols) to shade the area representing the revenue gained from selling an additional engine at $90,000
Chapter 15 Solutions
Principles of Economics (12th Edition)
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