International Economics答案2023

第三章测试

1._______________ cause a nation to give up more and more of one commodity in order to produce each additional unit of another.（ ）
A:Constant opportunity costs
B:Costs of production
C:Decreasing opportunity costs
D:Increasing opportunity costs

答案:D
2.Increasing opportunity costs result in a production possibilities frontier that is ___________ from the origin.（ ）
A:horizontal
B:convex
C:concave
D:linear
3.____________ is the amount of one commodity that a nation must give up to produce each additional unit of another.（ ）
A:marginal rate of return
B:marginal cost
C:production frontier
D:marginal rate of transformation (MRT)
4.The marginal rate of transformation (MRT) of X for Y refers to:（ ）
A:the amount of X that a nation must give up to produce each additional unit of Y.
B:the amount of Y that consumers are willing to give up to consume each additional unit of X.
C:the amount of X that consumers are willing to give up to consume each additional unit of Y.
D:the amount of Y that a nation must give up to produce each additional unit of X.
5.What is another name for the opportunity cost of a commodity?（ ）
A:marginal rate of substitution (MRS)
B:revealed comparative advantage
C:marginal rate of transformation (MRT)
D:marginal rate of return
6.When countries engage in international trade, specialization tends to be:（ ）
A:incomplete with constant costs and complete with increasing costs
B:incomplete with constant costs and incomplete with increasing costs
C:complete with constant costs, and complete with increasing costs
D:complete with constant costs and incomplete with increasing costs
7.Why do increasing opportunity costs of production occur?（ ）
A:Factors of production are not being used in the same fixed proportion
B:Factors of production are homogeneous
C:Factors of production are completely adaptable to every use
D:None of the above
8.Nations will have different production possibilities frontiers because of which characteristic?（ ）
A:differences in community indifference curves
B:differences in factor endowments
C:differences in degree of industrialization
D:differences in marginal costs of production
9.The tastes or demand preferences of a nation are given by:（ ）
A:marginal rate of transformation(MRT)
B:community indifference curves
C:production frontiers
D:consumption possibilities curves
10.Increasing opportunity costs result in a production frontier that is convex from the origin.（ ）
A:错 B:对