Suppose that a vaccine is developed for a highly contagious strain of flu.The likelihood that anyone will get this flu decreases as more people receive the vaccine.One of the demand curves in the diagram reflects private benefits and the other reflects social benefits.
Refer to the figure above.The socially optimal number of vaccines is _______.
A) 50
B) 75
C) 125
D) 150

Question

Suppose that a vaccine is developed for a highly contagious strain of flu.The likelihood that anyone will get this flu decreases as more people receive the vaccine.One of the demand curves in the diagram reflects private benefits and the other reflects social benefits. 
Refer to the figure above.The socially optimal number of vaccines is _______.
A) 50 
B) 75 
C) 125 
D) 150

Quizplus · Accepted Answer

D-2 is the social demand curve.

Suppose That a Vaccine Is Developed for a Highly Contagious