By international standards, the household saving rate of the United States:
A. has not ever really been high.
B. was extremely high until the 1980s.
C. has always been very high.
D. was low through the 1970s and 1980s, but increased throughout the 1990s to become
one of the highest.
Suppose Campus Books, a profit-maximizing firm, is the only supplier of the textbook
for a given class. The marginal cost of supplying each book is constant and equal to
$10, and Campus Books has no fixed costs. The table below shows the reservation
prices of the eight students enrolled in the class.
If Campus Books is permitted to charge 2 prices, and the bookstore knows customers
with a reservation price above $30 never bother with coupons, whereas those with a
reservation price of $30 or less always use them, then what will be the bookstore’s total
economic profit?
A. $158
B. $154
C. $150
D. $130