QUESTION 21
The market below depicts supply, demand, and marginal social cost in the widget market.
0.10
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.25
0.60
0.76
1.00
What kind of externality is present in the widget market?
a. Negative consumption
b. Negative production
c. Positive production
d. Positive consumption