Kara was out jogging and, despite being tired, decided to run one more mile. Based on her actions, economists would conclude that Kara
A) must be an avid runner.
B) decided that the marginal benefit of running one more mile would outweigh the cost of the additional mile.
C) decided that the marginal cost of running one more mile would outweigh the benefit of the additional mile.
D) was not very tired, so the marginal cost of the extra mile was very low.

Question

Quizplus · Accepted Answer

Economists assume that individuals make decisions based on the marginal benefits and costs. Kara's decision to run one more mile indicates that the marginal benefit of running one more mile was greater than the marginal cost, despite her tiredness. Therefore, economists would conclude that Kara weighed the marginal benefits and costs of running one more mile and decided that it was worth it.

Kara Was Out Jogging And, Despite Being Tired, Decided to Run