The graph below illustrates a market for cigarettes. Price of cigarettes $10 $8 $7 1 1 Marginal social cost Marginal private cost 120 180 Demand Quantity of cigarettes (millions of packs) A. Does the graph suggest that there are positive or negative externalities associated with cigarettes? B. Find the equilibrium price and quantity. C. What is the socially optimal quantity? D. According to the graph, what is the marginal external cost of a pack of cigarettes?

Principles of Economics 2e
2nd Edition
ISBN:9781947172364
Author:Steven A. Greenlaw; David Shapiro
Publisher:Steven A. Greenlaw; David Shapiro
Chapter12: Environmental Protection And Negative Externalities
Section: Chapter Questions
Problem 40P: Show the market for cigarettes in equilibrium, assuming that there are no laws banning smoking in...
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The graph below illustrates a market for cigarettes.
Price of
cigarettes
$10
$8
$7
1
1
Marginal
social cost
Marginal
private cost
120
180
Demand
Quantity of cigarettes
(millions of packs)
A. Does the graph suggest that there are positive or negative externalities associated with
cigarettes?
B. Find the equilibrium price and quantity.
C. What is the socially optimal quantity?
D. According to the graph, what is the marginal external cost of a pack of cigarettes?
Transcribed Image Text:The graph below illustrates a market for cigarettes. Price of cigarettes $10 $8 $7 1 1 Marginal social cost Marginal private cost 120 180 Demand Quantity of cigarettes (millions of packs) A. Does the graph suggest that there are positive or negative externalities associated with cigarettes? B. Find the equilibrium price and quantity. C. What is the socially optimal quantity? D. According to the graph, what is the marginal external cost of a pack of cigarettes?
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