17) how did apple overcome consumers’ diminishing marginal utility for ipods?
a.apple lowered the price of ipods so that previous buyers would purchase another unit.
b.apple introduced new features to entice previous buyers to purchase new models.
c.apple ignored the problem and focused solely on attracting new buyers.
d.apple was unable to overcome the problem and has faced steadily declining sales.
18) According to the equation of exchange, changes in the money supply can affect:
A.only the velocity of money.
B.both the price level and real output.
C.only real output and employment.
D.only the price level.
19)
refer to the above diagrams, which pertain to a purely competitive firm producing
output q and the industry in which it operates. in the long run we should expect:
a.firms to enter the industry, market supply to rise, and product price to fall.
b.firms to leave the industry, market supply to rise, and product price to fall.
c.firms to leave the industry, market supply to fall, and product price to rise.
d.no change in the number of firms in this industry.
20) for a pure monopolist the relationship between total revenue and marginal revenue
is such that:
a.marginal revenue is positive when total revenue is at a maximum.
b.total revenue is positive when marginal revenue is increasing, but total revenue
becomes negative when marginal revenue is decreasing.
c.marginal revenue is positive when total revenue is increasing, but marginal revenue