3. The effect of negative externalities on the optimal quantity of consumption Consider the market for bolts. Suppose that a hardware factory dumps toxic waste into a nearby river, creating a negative externality for those living downstream from the factory. Producing an additional ton of bolts imposes a constant external cost of $140 per ton. The following graph shows the demand (private value) curve and the supply (private cost) curve for bolts. Use the purple points (diamond symbol) to plot the social cost curve when the external cost is $140 per ton.
3. The effect of negative externalities on the optimal quantity of consumption Consider the market for bolts. Suppose that a hardware factory dumps toxic waste into a nearby river, creating a negative externality for those living downstream from the factory. Producing an additional ton of bolts imposes a constant external cost of $140 per ton. The following graph shows the demand (private value) curve and the supply (private cost) curve for bolts. Use the purple points (diamond symbol) to plot the social cost curve when the external cost is $140 per ton.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question
A2

Transcribed Image Text:PRICE (Dollars per ton of bolts)
700
630
560
490
420
350
280
210
140
70
0
0
O
☐
1
☐
2
3
O ■
O
☐
5
QUANTITY (Tons of bolts)
Supply
(Private Cost)
Demand
(Private Value)
7
Social Cost
1.5
2
2.5
3
3.5
4
4.5
5
5.5
The market equilibrium quantity is tons of bolts, but the socially optimal quantity of bolt production is tons.
To create an incentive for the firm to produce the socially optimal quantity of bolts, the government could impose a
of bolts.
of $
per ton

Transcribed Image Text:3. The effect of negative externalities on the optimal quantity of consumption
Consider the market for bolts. Suppose that a hardware factory dumps toxic waste into a nearby river, creating a negative externality for those living
downstream from the factory. Producing an additional ton of bolts imposes a constant external cost of $140 per ton. The following graph shows the
demand (private value) curve and the supply (private cost) curve for bolts.
Use the purple points (diamond symbol) to plot the social cost curve when the external cost is $140 per ton.
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