What would happen to the budget line when the price of tennis shoes decreases if tennis
shoes are measured on the horizontal axis?
a. It would shift to the left.
b. It would rotate outward along the horizontal axis.
c. It would rotate inward along the horizontal axis.
d. It would rotate outward along the vertical axis.
e. It would rotate inward along the vertical axis.
Mark and Charles are roommates at college. Each has written a 25-page term paper for
the same English class. They are equally poor typists. Charles types his own paper and
gets paid by Mark to type his, too. On the basis of the information given, which one of
the following must be true?
a. Mark is wealthier than Charles.
b. Mark needs more time to study than Charles.
c. Charles hates typing.
d. Mark and Charles have different utilities for typing but place the same value on time.
e. Mark’s opportunity cost of typing is higher than Charles’s.