国际经济学作业答案第六
章
This manuscript was revised by the office on December 10, 2020.
Chapter 6 Economies of Scale, Imperfect Competition,and International Trade
Multiple Choice Questions
1. External economies of scale arise when the cost per unit
(a) rises as the industry grows larger.
(b) falls as the industry grows larger rises as the average firm grows
larger.
(c) falls as the average firm grows larger.
(d) remains constant.
(e) None of the above.
Answer: B
2. Internal economies of scale arise when the cost per unit
(a) rises as the industry grows larger.
(b) falls as the industry grows larger.
(c) rises as the average firm grows larger.
(d) falls as the average firm grows larger.
(e) None of the above.
Answer: D
3. External economies of scale
(a) may be associated with a perfectly competitive industry.
(b) cannot be associated with a perfectly competitive industry.
(c) tends to result in one huge monopoly.
(d) tends to result in large profits for each firm.
(e) None of the above.
Answer: A
4. Internal economies of scale
(a) may be associated with a perfectly competitive industry.
(b) cannot be associated with a perfectly competitive industry.
(c) are associated only with sophisticated products such as aircraft.
(d) cannot form the basis for international trade.
(e) None of the above.
Answer: B
国际经济学作业答案第六章
