Economics for Today 9th Edition by Irvin Tucker

تمرين 43

If a good is produced up to the point where marginal social benefit equals marginal social cost,
A) social welfare is maximized.
B) the good is overproduced and the market is inefficient.
C) firms are earning zero profits.
D) all externalities have been eliminated.
EXHIBIT 8 Cigarette Smoking Data
Jack enjoys smoking, while Jill fears that secondhand smoke will shorten her life. Exhibit 8 shows the value Jack places on each cigarette he smokes and the value Jill places on her shortened life. Use the table to answer the following questions.