第三章单元测试
- Which of the following is the formula for a product’s intra-industry trade (IIT) share?（ ）.
- Intra-Industry Trade:（ ）.
- Scale economies are present when:（ ）.
- In a monopolistically competitive market, as the number of varieties increases, the price __________ because the demand for each variety becomes more __________（ ）.
- Which of the following is the basis for trade in a monopolistically competitive market? （ ）.
A:
B:
C:
D:
答案:
A:Is rarely observed in the world today. B:Occurs when the United States exports Ford automobiles and simultaneously imports petroleum. C:Occurs when the United States exports Ford automobiles and simultaneously imports Honda automobiles. D:Is mostly based on the differences stressed in the Heckscher-Ohlin trade theory.
A:An increase in output leads to a decrease in average cost. B:An increase in output has no impact on average cost. C:Production is spread over many firms in an industry. D:An increase in output leads to an increase in average cost.
A:decreases; inelastic B:increases; inelastic C:increases; elastic D:decreases; elastic
A:Constant returns to scale. B:Comparative advantage. C:Product differentiation. D:External scale economies.
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