D.New technologies or new ways of producing output can cause a nation’s production
possibilities curve to shift outwards
17) In the long run a monopolistically competitive firm:
A.earns an economic profit.
B.produces where P = ATC.
C.produces where MR exceeds MC.
D.achieves allocative efficiency.
18) Use the following diagrams for the U.S. economy to answer the following question.
Which of the diagrams best portrays an improvement in expected rates of return on
investment?
A.A.
B.B.
C.C.
D.D.
19) Which is the most valid criticism of the regulation of natural monopolies and other
firms subject to regulation by regulatory commissions?
A.It is difficult to find enough honest people to serve on regulatory commissions
B.Such regulation is unnecessary and amounts to creeping socialism
C.Many members of such commissions are appointed rather than being elected
D.Regulated firms may have little incentive to contain costs since they are assured a
“fair” return above costs
20) Kara’s Kittens typically produces and sells at its optimal (lowest per-unit cost) level
of 30 scratching posts per week. Kara’s also maintains an inventory of 20 scratching
posts. If prices are sticky and there is a positive demand shock this week resulting in
demand for 40 scratching posts, we would expect Kara’s to: