12) A monopolistically competitive firm is currently producing 20 units of output. At
this level of output the firm is charging a price equal to $20, has marginal revenue equal
to $12, has marginal cost equal to $12, and has average total cost equal to $18. From
this information we can infer that
a.the firm is currently maximizing its profit.
b.the profits of the firm are negative.
c.firms are likely to leave this market in the long run.
d.All of the above are correct.
13) Scenario 14-1
Assume a certain firm in a competitive market is producing Q = 1,000 units of output.
At Q = 1,000, the firm‘s marginal cost equals $15 and its average total cost equals $11.
The firm sells its output for $12 per unit.
At Q = 999, the firm‘s profits equal
a. $993.
b. $997.
c. $1,003.
d. $1,007.
14) Figure 9-14. On the diagram below, Q represents the quantity of crude oil and P
represents the price of crude oil.
When the country for which the figure is drawn allows international trade in crude oil,
a.consumer surplus changes from the area A + B + D to the area A.
b.producer surplus changes from the area C to the area B + C + D.
c.total surplus decreases by the area D.
d.All of the above are correct.