Katherine has a physics exam tomorrow. However, a free lecture by one of her favorite
authors is taking place this evening. Katherine decides to attend the lecture instead of
studying for her exam. Katherine’s opportunity cost is:
A) the time spent listening to the lecture.
B) not relevant, since no money is involved.
C) the cost of getting to the lecture itself plus the reduction in her physics exam grade
as a result of not studying tonight.
D) the time spent getting to the lecture.
Suppose the price of Vanilla Coke increases by 9% and quantity demanded falls by 13%
overall but only by 4% for loyal Coca-Cola customers. This means that for the general
public there are _____ for Vanilla Coke, but for loyal Coca-Cola customers, Vanilla
Coke is more of a _____ item. This means that Coca-Cola will enjoy an increase in total
revenue only from _____.
A) several substitutes; necessity; loyal Coca-Cola customers
B) few substitutes; luxury; the general public
C) no substitutes; necessity; the general public
D) several substitutes; necessity; the general public