Problem 1: Externality The weekly supply and demand for packs of cigarettes in the United States is given in the figure below. Suppose cigarette smoking causes an external cost on nonsmokers, as shown by the social benefit curve on the graph. Price ($) 36 34 32 30 28 26 S=MC =MC pvt SI 24 22 20 - 18 16 - 14 - 12 10 8- 6- 2- MB MB pvt 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Pack of cigarettes (millions) a. This is a [ Select ] [ Select ] V externality.

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Problem 1: Externality
The weekly supply and demand for packs of cigarettes in the United States is given in the
figure below. Suppose cigarette smoking causes an external cost on nonsmokers, as shown
by the social benefit curve on the graph.
Price ($)
36
34
32
30
28
26
S=MC
=MC
24
pvt
SI
22
20
18
16
14
12
10
8
6
4
MB
pvt
social
2
MB
4 6 8
10 12 14 16 18 20 22 24 26 28 30 32
Pack of cigarettes (millions)
a. This is a
[ Select ]
[ Select ]
externality.
Transcribed Image Text:Problem 1: Externality The weekly supply and demand for packs of cigarettes in the United States is given in the figure below. Suppose cigarette smoking causes an external cost on nonsmokers, as shown by the social benefit curve on the graph. Price ($) 36 34 32 30 28 26 S=MC =MC 24 pvt SI 22 20 18 16 14 12 10 8 6 4 MB pvt social 2 MB 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 Pack of cigarettes (millions) a. This is a [ Select ] [ Select ] externality.
b. How much is the external cost (in $ per pack)?
2$
c. Without any intervention into the market, how many million packs of cigarettes are
consumed per week?
million
d. What is the efficient (or socially optimal) number of cigarette packs?
million
e. Without intervention in this market, what is the deadweight loss that arises as a result of
the externality? Locate the area on the graph and calculate the dollar value.
2$
million
f. If the government wants to use a Pigovian tax to internalize the externality and bring the
market to the socially optimal quantity, what would the amount of the tax need to be in
order to eliminate the deadweight loss?
per pack
%24
Transcribed Image Text:b. How much is the external cost (in $ per pack)? 2$ c. Without any intervention into the market, how many million packs of cigarettes are consumed per week? million d. What is the efficient (or socially optimal) number of cigarette packs? million e. Without intervention in this market, what is the deadweight loss that arises as a result of the externality? Locate the area on the graph and calculate the dollar value. 2$ million f. If the government wants to use a Pigovian tax to internalize the externality and bring the market to the socially optimal quantity, what would the amount of the tax need to be in order to eliminate the deadweight loss? per pack %24
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