Which statement does NOT involve thinking at the margin?
A) If John works another hour, he will beat the rush hour traffic.
B) Sally worked eight hours today.
C) Dylan's supervisor asked him to work an extra four hours this week.
D) If Jill works on her day off, she will make an additional $300.

Question

Quizplus · Accepted Answer

Option A involves considering the marginal benefit (beating rush hour traffic) of John working an extra hour.
Option C involves considering the marginal cost and benefit (four extra hours of work and the associated pay) of Dylan working extra hours.
Option D involves considering the marginal benefit (additional $300) of Jill working on her day off.
However, option B only states how many hours Sally worked and does not involve any analysis of marginal costs or benefits.

Which Statement Does NOT Involve Thinking at the Margin