31) Instead of studying for an additional two hours for the economics inal, Leann decides
to watch a movie. Leann is making
A) a decision that does not involve an opportunity cost.
B) a rational decision if her marginal cost from the movie is greater than her marginal
beneit.
C) a rational decision if her marginal beneit from the movie is greater than her marginal
cost.
D) an irrational decision because studying is more important than watching a movie.
E) a decision that is not on the margin because she will see the entire movie.
Skill: Level 2: Using deinitions
Section: Checkpoint 1.2
Status: Old
AACSB: Relective thinking
32) When Gabriel made a rational choice to spend his entire allowance on candy bars, he
did so by comparing the
A) beneits of the candy bars to the desires he had for the candy bars.
B) marginal beneits of the candy bars to the marginal costs of the candy bars.
C) opportunity costs of the candy bars to the scarcity of the candy bars.
D) beneits of the candy bars to the scarcity candy bars.
E) self-interest to the social interest.
Skill: Level 2: Using deinitions
Section: Checkpoint 1.2
Status: Old
AACSB: Relective thinking
33) As part of its proposal to win the 2012 Olympics, London developed a carbon ofset
plan to reduce the Games’ impact on the environment. In 2011, the organizers decided to
drop this plan to reduce emissions. We can conclude that
A) the marginal cost of reducing emissions exceeded the marginal beneits of reducing
emissions.
B) the organizers are not making a rational decision.
C) the organizers are ignoring a sunk cost.
D) there are no incentives to reduce carbon emissions.
E) it is diicult to calculate the cost of reducing emissions.
Skill: Level 2: Using deinitions
Section: Checkpoint 1.2
Status: Old
AACSB: Relective thinking
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