For a monopolist with a downward-sloping demand curve,
a. the coefficient of price elasticity of demand is infinite.
b. the coefficient of price elasticity of demand is zero.
c. as price increases, marginal revenue decreases.
d. as price decreases, marginal revenue decreases.
e. when the price is equal to zero, marginal revenue is equal to zero.
Which of the following is true of a perfectly competitive firm?
a. The firm is a price maker.
b. If the firm wishes to maximize profits it will produce an output level in which total
revenue equals total cost.
c. The firm will not earn an economic profit in the long run.
d. The firm’s short-run supply curve is its MC curve below its AVC curve.
A monopolist earning economic profit in the short run determines that at its present
level of output, marginal revenue is $23 and marginal cost is $30. Which of the
following should the firm do to increase profit?
a. Raise price and lower output.
b. Lower price and lower output.
c. Raise price and raise output.
d. Lower price and raise output.
e. Lower output, but leave price unchanged.